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Meet Our Talented HFZ TEAM
Amanda Hunt
Dave Mittel
Fernanda Martinez
Gabrielle Polino
Guadalupe Zambrano
Hani Shamat
Hillary White
Janet Liu
Jaritssa Martinez
Jen Baumbart
Joe Downard
Lynne Johnson
Natalie Dombrowski
Nicole Betancourt
Shannon Kwit
Sue Stevens
Mark G. Hanley JD, MBA, BSEE
I believe our clients benefit from the real-world engineering experience that our practitioners bring to the firm. This experience enables us to interface efficiently with inventors and provides a practical and business-minded foundation for all of our work.
I represent numerous large corporate clients involved in a diverse range of electrical, software, and mechanical technologies, and I have extensive experience in all aspects of patent prosecution and counseling including freedom-to-operate analyses, non-infringement and invalidity opinions, and reexaminations.
Prior to practicing law, I was a design engineer specializing in switching power supplies; analog circuitry; and a variety of pressure, temperature, and position transducers. I am also an inventor on several patents relating to piezoelectric biomorphs.
In 2023 and '24, I was Recommended for Patent Prosecution by the IAM Patent 1000 and was designated a Patent Star in the United States (national) and Illinois from Managing IP's IP Stars, an annual guide to the top intellectual property attorneys in Illinois and nationwide. IP Stars Read Here
- DePaul University College of Law – JD, with honors
- Marquette University – MBA and BSEE, magna cum laude
- The United States Patent and Trademark Office
- The Supreme Court of Illinois
- The U.S. District Court for the Northern District of Illinois
James A. Flight JD, BSEE
As one of the founding members of HFZ, I have over 30 years’ experience in patent litigation, patent prosecution and patent counseling. My experience representing clients includes a diverse range of technologies, including software, telecommunications, analog and digital circuitry, semiconductor structures and fabrication techniques, microprocessor architecture, FPGA technology, virtual private networking, internet technologies, audience measurement technologies, cloud computing, virtualization, data warehousing, network security, memory architectures, green technologies, safety products, dock safety equipment, industrial doors, ventilation, surgical equipment, and child care products.
My focus is on our client’s business objectives. Our ultimate goal is to provide counsel and patent prosecution strategies that advance our client’s agenda. This is best achieved in a long-term relationship that fosters an in-depth understanding of our client’s business and the competitive landscape in which they operate. On the prosecution side, this level of commitment ensures we do not just secure patent claims; we issue claims that are tailored for ready enforcement when the need arises.
I’m actively involved in defensive and offensive patent issues including ex parte and inter partes reexaminations, reissues, Public Use proceedings, European opposition proceedings, and due diligence investigations in support of product releases, enforcement actions and/or company acquisitions. I have represented clients in litigation and licensing involving patent infringement, trade secret misappropriation, trade dress infringement, and contract disputes. Leveraging my deep experience in such a wide range of issues and technologies, I’m able to help my clients build and manage valuable patent portfolios and avoid the pitfalls of competitive holdings.
I was recently recognized among the IAM's 300 Global Leaders for 2023, '24 and 2025. I was chosen as one of The World's Leading IP Strategists 2022, '23 and '24 for the IAM's Strategy 300. I was also recommended for patent prosecution in 2023 and '24 by the IAM Patent 1000. IAM’s Strategy 300 Global Leaders 2024 is a publication that showcases intellectual property professionals who innovate, inspire, and go above and beyond to deliver value for clients Read More here
In addition, Martindale-Hubbell has identified me as an AV Preeminent Attorney every year since 2013 and a Martindale-Avvo Rated Top Lawyer for 2024. Read more.
- Northwestern University – JD, with honors, and BSEE
- The United States Patent and Trademark Office
- The United States Court of Appeals for Federal Circuit
- The Supreme Court of Illinois
- The Supreme Court of The State of Colorado
- The U.S. District Court for the Northern District of Illinois
Mark C. Zimmerman JD, MSEE, BSEE
As a founding member of Hanley, Flight & Zimmerman, I have experience in U.S. and foreign patent prosecution and client counseling with particular emphasis in the electrical and mechanical fields. In addition to patent prosecution, my experience includes directing post-grant proceedings in the USPTO and acquisition negotiations. Additionally, I’ve rendered numerous non-infringement and invalidity opinions as well as testified at trial.
I’ve worked with technologies including, among other things, mobile telephones, networks, semiconductors, remotely-readable meters, industrial equipment, spray nozzles, kitchen fixtures, and firearms.
Before starting a legal career, I worked as a design engineer at Motorola Cordless Products, specializing in RF and audio circuit design. I earned my JD from DePaul University College of Law, with honors. I also earned an MS in Electrical Engineering and Computer Science from University of Illinois, Chicago, and my BS in Electrical Engineering, magna cum laude, from Marquette University.
In 2023 and '24, I was Recommended for Patent Prosecution by the IAM Patent 1000 and was designated a Patent Star in the United States (national) and Illinois from Managing IP's IP Stars, an annual guide to the top intellectual property attorneys in Illinois and nationwide. IP Stars Read Here
- DePaul University College of Law – JD, with honors, Order of the Coif
- University of Illinois at Chicago (UIC) – MSEE
- Marquette University – BSEE, magna cum laude
- The United States Patent and Trademark Office
- The Supreme Court of Illinois
- The U.S. District Court for the Northern District of Illinois
Michael W. Zimmerman JD, MSEE, BSEE
The most enjoyable aspect of my work is having the opportunity to work with inventors to facilitate the development of their ideas into patentable inventions. My engineering background allows me to speak the inventors’ language and to recognize where further development of an application is needed.
As a member of Hanley, Flight & Zimmerman, I have prepared and prosecuted U.S. and foreign patent applications in the areas of software systems, digital media systems, cellular timing circuitry, and low-level computer operations software. I’ve also conducted patent litigation assistance for both defensive and offensive investigations and patent assertions, and I’ve prepared and assisted with the preparation of non-infringement and validity opinions.
Prior to attending law school, I performed validation procedures on software and embedded medical-monitoring devices at GE Medical Systems, Inc. I also developed hardware and software tools for automated testing of monitoring devices. I also worked for an internet service provider, managing network equipment and providing customer support.
I earned my JD from Chicago Kent College of Law. I also earned my MS and BS, magna cum laude, in Electrical and Computer Engineering from Marquette University. My thesis was on signal processing, machine learning, and artificial intelligence algorithms for processing cardiac signals to detect cardiac malfunction. My work was published and presented at the 2003 Computers in Cardiology Conference in Thessaloniki, Greece.
- Chicago-Kent College of Law – JD
- Marquette University – MSEE and BSEE
- The United States Patent and Trademark Office
- The Supreme Court of Illinois
- The U.S. District Court for the Northern District of Illinois
Christopher N. George JD, MSECE, BSCompE
I believe our clients are best served by offering a comprehensive, strategic solution to their intellectual property and business needs. At HFZ, we’ve built a team to provide our clients a wide variety of non-litigation, intellectual property services, which they can leverage to develop and grow their businesses.
I have extensive experience in a wide range of legal arenas including patent drafting and prosecution, patent portfolio development and management, brainstorming and IP capture, patent landscaping, patent reexamination, litigation, licensing, and due diligence and opinion analysis. I also serve as seconded in-house counsel for a Fortune 5 client to advise them on patent strategy matters.
My experience in technology spans a wide variety of consumer products and manufacturing systems as well as imaging systems, image processing, analog and digital audio, casino gaming systems, telecommunications and data networks, distributed computer systems, electronic storage devices, financial trading systems, anti-virus and security software, and signal processing applications.
Prior to practicing law, I worked in the field of computer architecture and am an inventor on a patent related to runtime software optimization.
- University of Illinois at Urbana-Champaign – JD with honors, MSECE, and BSCompE with honors, Knight of St. Patrick
- The United States Patent and Trademark Office
- The Supreme Court of the United States
- The United States Court of Appeals for Federal Circuit
- The Supreme Court of Illinois
- The U.S. District Court for the Northern District of Illinois
Felipe Hernandez JD, BSEE
I work with various large and small corporate clients in a diverse range of technology areas including software, electrical, and mechanical technologies. I believe there is no single, rigid approach to serving all clients, neither from a technical standpoint nor from a business perspective. The best IP legal services are customized to meet the needs of each client.
I spent several years as an electrical engineer before joining Hanley, Flight & Zimmerman in 2003. I developed electrical hardware architectures for multimedia platforms of next-generation mobile phones at Motorola, Inc. In that capacity, I worked with several different microprocessor families, digital multimedia codecs, LCD controllers, compression algorithms, and communication protocols. At Palm, Inc. I developed electrical hardware architectures for Palm’s line of premium handheld PDA devices, and I wrote firmware and software for mobile computing.
My current practice involves preparing and prosecuting domestic, international, and foreign patent applications. I also counsel clients on non-infringement and invalidity positions as well as other patent related matters.
- Chicago-Kent College of Law – JD
- Northern Illinois University – BSEE, cum laude
- The United States Patent and Trademark Office
- The Supreme Court of Illinois
- The U.S. District Court for the Northern District of Illinois
Joseph T. Jasper JD, BSBME
We strive to know each client’s business. Leveraging that knowledge, we facilitate clients’ ability to use their intellectual property to expand operations with confidence. With a focus on the medical, electrical and mechanical arts, my practice provides non-infringement and invalidity opinions to clear products or assure clients freedom to operate.
Working with engineers and in-house counsel, I help our clients generate patent portfolios and expand their businesses by developing and executing prosecution strategies including post-grant proceedings. I also coordinate with overseas counsel in opposition proceedings, procure federal trademark registrations, and manage global trademark portfolios, which includes managing and litigating trademark opposition and cancellation proceedings. Additionally, I draft and negotiate licensing agreements, provide counseling related to copyright issues and procure federal copyright registrations.
- University of Maryland – JD
- Marquette University – BSBME, cum laude
- The United States Patent and Trademark Office
- The Supreme Court of Illinois
- The U.S. District Court for the Northern District of Illinois
- The United States Court of Appeals for the Federal Circuit
- The United States Court of Appeals for the Seventh Circuit
William E. Jacklin JD, Ph.D. EE, MSEE, BSEE
Prior to joining HFZ, I was the engineering manager for DSP development at PrairieComm, Inc., where I designed and managed the development of physical layer technology for WCDMA (UMTS) and GSM/GPRS/EDGE mobile cellular systems. I also worked at Northrop Grumman Corp., where I designed and implemented DSP algorithms and communication protocols for wireless systems. I am a named inventor on six granted U.S. patents.
At HFZ, I specialize in both electrical and mechanical arts. My real-world engineering experience allows me to thoroughly understand the scope and breadth of our clients’ inventions and technology portfolios, and I strive to provide guidance and pursue patent protection targeted to each client’s specific objectives.
- Stetson University College of Law – JD, summa cum laude
- Illinois Institute of Technology – Ph.D. EE, MSEE, and BSEE with high honors
- The United States Patent and Trademark Office
- The U.S. District Court for the Northern District of Illinois
- The Supreme Court of Illinois
- The State of Florida
Sergio D. Filice JD, BSME
At HFZ, I represent fortune 500 and 100 companies on all aspects of patent application preparation, prosecution and patent portfolio development. Additionally, I provide counseling regarding patentability, product clearance, validity and infringement matters in various technological fields.
My patent practice focuses on mechanical and electro-mechanical arts in a broad range of technologies including: aerospace, child care products, fluid control devices and systems, mobile devices, medical devices, window coverings, industrial door and loading dock equipment, marine equipment, firearms, printing technologies, mailers and binding equipment, and coil processing & roll forming systems.
I work with inventors and engineers to quickly grasp and analyze our clients’ inventions and provide the highest level of quality and protection for their intellectual property. HFZ’s collegial work environment enables attorneys to provide a team-oriented analysis of all our clients’ IP matters.
Earlier in my career, I was a mechanical engineer at Abbott Laboratories where I designed several disposable medical devices and provided equipment support to improve manufacturing processes and performance. Later, I practiced law at a general practice firm before joining HFZ.
- The John Marshall Law School – JD
- University of Illinois at Chicago (UIC) – BSME
- The United States Patent and Trademark Office
- The Supreme Court of Illinois
- The U.S. District Court for the Northern District of Illinois
Peter J. Cesarz JD, BSEE
Prior to entering the field of patent law, I was employed by Agilent Technologies, specializing in test systems design and development for industries involved in electro-optics, medical applications, and aerospace defense. I was also part of General Electric’s Technical Leadership Program (Edison Engineering Program), where I was involved with internal code and standards, electronics products design, and next generation product research and development.
At HFZ, I enjoy the inventive diversity brought by the clients that we serve, which always ensures new and interesting intellectual property challenges to tackle. I often find that my prior experience as an engineer and consultant bolsters my ability to comprehend new inventive subject matter and efficiently communicate with inventors.
- The John Marshall Law School – JD
- Marquette University – BSEE
- The United States Patent and Trademark Office
- The Supreme Court of Illinois
- The U.S. District Court for the Northern District of Illinois
- The State of Wisconsin
Marianne Buckley JD, BSBME
Before practicing law, I worked in the research and development department of a healthcare data analytics company. In this role, I saw firsthand how innovation can drive a company’s success. During law school, I interned with the Office of General Counsel at the American Medical Association, where I came to recognize the unique role of in-house counsel in protecting the interests of a business. In my patent prosecution practice, I draw upon these experiences to work with our clients in obtaining intellectual property protection that advances their business goals.
At HFZ, I prepare and prosecute U.S. and foreign patent applications in the mechanical and electro-mechanical arts. I have experience pursuing our clients’ patent rights in a variety of technologies, including medical devices, neuromarketing tools, child care products, information systems, and process control devices. I also assist in counseling our clients with regards to patentability, validity, and infringement matters. Additionally, I help clients obtain trademark protection and manage their trademark portfolios.
- Seton Hall University School of Law – JD, magna cum laude
- Northwestern University – BSBME
- The United States Patent and Trademark Office
- The Supreme Court of Illinois
Brandon J. Dube JD, BSME
Prior to joining HFZ, I worked as a patent agent drafting and prosecuting patent applications involving a variety of consumer products. Before attending law school I interned at Clean Air Engineering where I provided emissions testing services to coal power plants throughout the U.S.
At HFZ, my practice focuses on preparing and prosecuting U.S. and foreign patent applications in the mechanical and electro-mechanical arts. My background in mechanical engineering provides me with the expertise needed to work on a wide range of mechanical technologies including medical devices and process control devices.
Additionally, I assist in counseling clients regarding patentability, validity, and infringement issues.
- Chicago-Kent College of Law – JD
- University of Illinois at Urbana-Champaign – BSME
- United States Patent and Trademark Office
- The Supreme Court of Illinois
- The U.S. District Court for the Northern District of Illinois
Michael J. Lenisa JD, BSEE
Prior to joining HFZ, I was a software automation engineer at Motorola where I designed automated protocol and hardware test systems for testing mobile devices. I was responsible for interacting with clients and developers around the world to help deliver comprehensive test platforms.
At HFZ, my practice areas include preparing and prosecuting applications in the electrical and computer arts. My experience in the mobile device and software arenas gives me a unique background, which allows me to communicate effectively with clients and to quickly understand their technology and related inventions.
- The John Marshall Law School – JD
- Bradley University – BSEE
- The United States Patent and Trademark Office
- The Supreme Court of Illinois
S. Nazeer Ali JD, MSME, BSME
I’ve always had a personal interest in innovation and emerging technologies. My industry experience includes working at both Motorola and Brunswick. At Motorola, I worked as a design engineer on cellular phones and base stations. At the Life Fitness division of Brunswick, I designed treadmills and exercise bicycles.
At HFZ, my practice focuses on preparing and prosecuting patent applications in the mechanical, electro-mechanical, manufacturing processes, and computer areas. I also assist in counseling matters. My experience in dealing with multifaceted and complex issues helps me grasp our clients’ innovative technologies quickly.
- Chicago-Kent College of Law – JD
- Stanford University – MSME
- University of Illinois at Urbana-Champaign – BSME with honors
- United States Patent and Trademark Office
- The Supreme Court of Illinois
Scott D. Salmon JD, BSME
I have great interest in innovation and how the law adapts to ever-changing technology both domestically and abroad. Before joining HFZ, I taught at Chicago-Kent College of Law where I instructed students on principles of international intellectual property law and on academic writing on topics in IP law. My interest and understanding of both U.S. and foreign law, coupled with my background in mechanical engineering, enable me to quickly grasp the details (both legal and technical) that are relevant to the needs of our clients to secure the broadest protection possible for their IP rights.
At HFZ, my practice focuses on preparing and prosecuting patent applications in the mechanical, electro-mechanical, and computer arts. Since joining HFZ, I have enjoyed the wide array of new technologies and novel ideas developed by the clients we serve and the opportunity and challenge to turn those ideas into protectable interests. For example, I have represented clients in areas as diverse as computer hardware and software, fluid control systems, electrical connectors, media consumption measurement, and manufacturing processes. Assisting to turn those ideas into protectable interests is a challenging and rewarding experience.
- Chicago-Kent College of Law – JD (magna cum laude)
- Utah State University – BSME (magna cum laude)
- The United States Patent and Trademark Office
- The Supreme Court of Illinois
- The State of Utah
Lydia C. Lai, LL.B., LLM, BSECE
Prior to joining HFZ, I worked as an engineer for Agilent Technologies, Inc. I utilized network test instruments, and developed software to automate testing processes. My technology focus is centered in electrical and computer engineering.
At both Agilent Technologies, Inc., and Intel Corporation, I worked in the Patent Group. My patent experiences include patent portfolio management, patent landscaping, patent transactions, due diligence, freedom-to-operate analysis, non-infringement, and invalidity opinions.
At HFZ, my practice focuses on preparing and prosecuting U.S. and foreign patent applications in the areas of semiconductor technologies, audience measurement technologies, cloud computing, virtualization, and data networks. My engineering and patent experiences allow me to thoroughly understand our clients’ inventions and technology portfolios. I strive to provide guidance and pursue patent protection that advances our client’s specific technological and market objectives.
- University of London-Bachelor of Laws (LL.B.)
- University of Southern California – Master of Laws (LLM)
- Curtin University of Technology Australia – BSECE
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- The United States Patent and Trademark Office
- Supreme Court of California
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Larry J. Palguta JD, BSME
Prior to joining HFZ, for more than 22 years I handled a diverse range of technologies for Honeywell in the automotive and aerospace industries. During my years as in-house counsel for both large and small corporations, I implemented strategies that generated and expanded intellectual property to protect clients’ businesses and products, and to derive additional value from licensing the commercialization of intellectual property.
At HFZ, I focus on the mechanical, electro-mechanical, and composition of matter arts. In addition to my experience preparing and prosecuting U.S. and foreign patent applications, client counseling, and opinions, I have also drafted and negotiated license agreements for patents and software, supported university research, and handled intellectual property matters arising within mergers and acquisitions.
- Cumberland School of Law, Samford University – JD
- Purdue University – BSME
- The United States Patent and Trademark Office
- The United States Supreme Court
- The United States Court of Appeals for Federal Circuit
- The Supreme Court of Illinois
- The U.S. District Court for the Northern District of Illinois
- The Supreme Court of Indiana
James C. Redondo JD, BSEE
At HFZ I prepare and prosecute software and electrical-based patent applications. HFZ allows me to be exposed to new technologies and face new challenges.
Prior to joining HFZ, I taught high school mathematics at Noble Street College Prep where I developed the skill of explaining complex mathematical ideas in a clear and concise manner. Because patents may need to be analyzed by judges or juries, I am able to leverage this skillset in my patent practice by describing complex technical ideas at a level that can be understood by those with a limited technical background.
While working as a software engineer with Law Bulletin, I programmed automated testing for software application development, and as an electrical engineering intern with Continental Automotive Group I conducted EMC tests and programmed transmission control units for 4×4 SUVs. Through these industry experiences I developed skills in problem-solving, engineering, and teamwork which I utilize while working with inventors and drafting technically accurate patent applications.
My legal education through Chicago-Kent College of Law sharpened my legal reasoning, writing, and creative thinking skills which I now leverage in developing persuasive arguments that advance effective prosecution and secure Intellectual Property rights for our clients.
Working at HFZ allows me to utilize my teaching, engineering, and legal background to develop strong patent protection that targets the business goals of our clients.
- Chicago-Kent College of Law – JD, cum laude
- University of Illinois at Chicago – BSEE
- University of Iowa – BA in Mathematics
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- United States Patent and Trademark Office
- The Supreme Court of Illinois
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Alyssa M. Prindiville JD, BSME
Prior to joining HFZ, I was a career student. I started my university studies in engineering, where I received an Associate of Science in Engineering. Before completing my Bachelor of Science, I made the tough decision to leave engineering and, instead, pursue a career in law. I received my Bachelor of Science in Political Science and went on to attend law school. Between my 2L and 3L years, I was introduced to the field of patent law. I knew immediately that a career in patent law was the right path for me. After graduating from law school and passing the bar exam, I went back to university and received by Bachelor of Science in Mechanical Engineering.
I have always felt a desire to learn as much as I can during my lifetime. It is this appetite for knowledge that drew me into the engineering field in the first place and what led me to a position as a patent attorney. As a patent attorney, I get to combine my passions for learning about engineering advancements and for legal and technical writing. At HFZ, I enjoy working with clients to learn about their inventions and innovations and to helping clients protect their intellectual property.
- University of North Dakota School of Law, JD
- North Dakota State University, BSME, magna cum laude
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- The United States Patent and Trademark Office
- Supreme Court of North Dakota
- Supreme Court of Illinois
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Kristopher T. Sabatini JD, BSME, BSAE
Prior to joining the HFZ team, I studied Mechanical and Aerospace Engineering at Case Western Reserve University. As part of my education process, I co-oped with GE Aviation as a Product Design and Mission Analysis Engineer. I became interested in Intellectual Property Law during my junior year of college as President of Case Western’s Mock Trial program. Patent Law enhances my dual interests in engineering and law. At HFZ, I exercise my engineering know-how and passion for cutting edge technology to assist in the preparation and prosecution of patents for our clients.
- Loyola University Chicago School of Law – JD
- Case Western Reserve University – BSME, BSAE
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- The United States Patent And Trademark Office
- The Supreme Court of Illinois
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Justin R. Lizalek JD, BSEE
Before I joined the HFZ team, I studied electrical engineering at Marquette University. While at Marquette I worked in the power electronics lab assisting in the design of power electronic converters. Additionally, I interned at S&C Electric designing control systems for power converter test fixtures. I also interned at Johnson Controls in the Power Solutions division where I conducted design verification of a solid-state relay for use in lithium ion battery control. Throughout these roles, I worked alongside skilled engineers and production staff to further the goals of innovating new products and systems.
At Hanley, Flight, and Zimmerman, I am able to utilize my technical background and interest in new and innovative technologies in the preparation and prosecution of patent applications for our diverse client network.
- UIC Law School – JD magna cum laude
- Marquette University – BSEE, magna cum laude
- The Supreme Court of Illinois
Mary V. Vollmar, JD, BSBME
Before joining the HFZ team, I studied Biomedical Engineering at the University of Miami. I focused my studies on tissue dynamics, biomedical devices, and signal analysis. During my undergraduate studies, I discovered my passion for technology and the solutions it provides to modern day problems.
During law school, I focused my studies on Intellectual Property and the powerful use of the patent process. My experience with the University of Miami Law Review and the Moot Court helped develop a personal expertise in legal analyses. I am drawn to patent law to help others bridge the divide between technology and the law. At HFZ, I engage with our diverse client base to provide legal help through a technological lens.
- University of Miami Law School, JD, BSBME, cum laude
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- The United States Patent and Trademark Office
- The Supreme Court of Illinois
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Michael A. Van Ryn, JD, BSBME
Prior to joining HFZ, I studied Biomedical Engineering at Florida International University, with an interest in neuroscience and cardiology. My experiences at FIU confirmed my passion for engineering and the impact developing technologies have on the world.
During law school, I focused my studies on Patent law and Health law. I also served as a research assistant studying the bioethics surrounding the development and implementation of novel biomedical technologies. My time on the Minnesota Law Review helped hone my legal writing and analytical skills while my work in the Community Legal Partnership for Health Clinic nurtured my passion for providing exceptional service to my clients. At HFZ, I utilize the skills I developed during my legal and undergraduate educations to deliver patent preparation and prosecution solutions that serve our clients’ interests.
- University of Minnesota Law School – JD, cum laude
- Florida International University – BSBME, cum laude
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- The United States Patent and Trademark Office
- The Supreme Court of Illinois
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C. Taylor Grote, JD, BSEE
Prior to joining the HFZ team, I studied Electrical Engineering Technology at Purdue University. Project and design work at Purdue included developing embedded control systems for digital washing machines and performing a design/build for an Atomic Force Microscope. Additionally, I interned with Grote Industries assisting in the design and manufacture of the newly emerging thin film LED technology for truck and trailer interior and exterior lighting. I also tested optical, electrical and mechanical compliances and specifications for LED technology within the industry. I was introduced to Intellectual Property working as a summer intern for an IP law firm.
Working at HFZ has allowed me to grow my knowledge and passion for new and emerging technologies while working alongside intelligent, seasoned patent attorneys. I strive to help our clients attain their Intellectual Property rights which contributes to the overall health of our economic system.
- UIC Law School – JD
- Purdue University – BSEE
The Supreme Court of Illinois
Sophia P. Pilipchuk Ph.D. BME, MSBME, BSBME
Having over 10 years of experience working with engineers and scientists in university-based research laboratories, I appreciate the effort and dedication that goes into the development and validation of novel technologies. As a doctoral student, I authored and co-authored research and review articles in Advanced Healthcare Materials, Dental Materials, and Journal of Biomedical Materials Research, obtaining substantial practice in the communication of novel concepts. I also worked as a Tech Transfer Fellow at the University of Michigan Office of Technology Transfer (OTT)—evaluating a wide range of invention disclosures, assessing prior art, drafting marketing abstracts, and identifying potential licensees—which significantly strengthened my interest in patent law. After completing a doctoral thesis, I worked with engineers and surgeons as a Biomedical Innovation Fellow in UM’s Pediatric Surgery Section to identify medical device needs through clinical immersion. This process inspired design and development of new product solutions to fulfill the needs and expectations of the Michigan Pediatric Device Consortium (MPED) program. This work expanded my knowledge of medical device technologies and commercialization strategies.
At HFZ, I work together with patent attorneys and patent engineers to help clients secure protection for their innovative ideas and maximize the economic value of their patents. At HFZ, I can utilize my previous experiences to help advocate for inventors and assist in securing the full extent of intellectual property protection to which they are entitled.
- University of Michigan – Ph.D. BME, MSBME
- Illinois Institute of Technology – BSBME, summa cum laude
- United States Patent and Trademark Office
Emmett T. Russell BSBME
Before joining HFZ, I studied biomechanical engineering at Marquette University. While studying at Marquette, I worked at Medela, LLC in the Product Development department where I assisted in researching, developing, and testing electrical and mechanical aspects of pumps and associated production processes. I became interested in intellectual property through my grandfather who is the inventor of several patents in the construction industry (e.g., US 4,000,592).
Working at HFZ has allowed me to utilize my engineering background as well as my passion for learning about new and emerging technologies. Here I enjoy working with the inventors at the forefront of innovation to develop and protect their inventive concepts.
- Marquette University – BSBME
Adam G. Popper, BSEE
Before I joined the HFZ team, I studied Electrical Engineering at Purdue University. During this time, I worked as a teaching assistant for several electrical and computer engineering courses. I also had internships at Grayhill Inc., Morey Corporation, Argonne National Laboratory, and Collins Aerospace. I first took an interest in intellectual property law during my junior year during a communications law course. This course introduced me to the idea of being able to take my passion for technology into the world of law.
At HFZ, I am looking forward to continuing to learn about intellectual property law from experienced attorneys. During my time with HFZ, I look forward to working with inventors and companies to build strong portfolios and protect innovative product solutions.
- Purdue University – BSEE
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Kate I. Chwistek MSME, BSME
Before joining the team at HFZ, I studied mechanical engineering at Northern Illinois University. A highlight of my time at Northern was my senior design project, for which my team and I designed and manufactured a wearable exoskeleton arm with lift assist capabilities. Additionally, I interned at EN Engineering to assist in designing pipeline systems for transportation of natural gas. After completing my undergraduate degree, I continued my education at Northern to pursue a master’s degree in mechanical engineering with an emphasis in dynamic systems and control. As a graduate research assistant, I worked on analyzing behavioral patterns of complex systems in nature, then capturing those behavioral patterns in a mathematical model. Ultimately, my graduate career culminated in a thesis paper in which I modeled the response of fish schools to a simulated predator.
Graduate research sparked my interest in learning about the new and novel, and ultimately led me to pursue a career in patent law at HFZ. At HFZ, I am consistently exposed to new ideas and technologies across all areas of industry. By helping to protect the intellectual property of some of industry’s brightest minds, I hope to further cultivate a culture of innovation and discovery that keeps the world moving forward.
- Northern Illinois University – MSME, BSME
- United States Patent & Trademark Office
David D. Osinski MSECE, BSCE
Before joining the HFZ team, I studied Electrical & Computer Engineering at Michigan State University. During this time, I worked as a graduate research assistant writing code for eddy current simulations used by nuclear power plants. Throughout my schooling I also held internships in the aviation, automotive, and hydraulics industries, which were both hardware and software focused. This wide interest in disciplines also lead me to look at patent law as a means of incorporating new technologies and a desire to learn into my career.
At HFZ, I can combine my background and interests through patent law, doing so under the guidance of experienced and professional team members.
- Michigan State University – MSECE, BSCE
- The United States Patent and Trademark Office
Ethan W. Hopp, BSEE
Prior to joining HFZ, I was a systems engineer at Milwaukee Tool, where I helped design and test tool platforms. While studying Electrical Engineering at Michigan State University, I was also involved in their entrepreneurship program where I ran a small business. During this time, I had my first introduction to intellectual property while pursuing my own patent. This experience inspired me to work with other inventors to help them protect their intellectual property. I am currently pursuing my JD at the University of Illinois Chicago School of Law so I can further my knowledge of intellectual property.
At HFZ, I leverage my engineering knowledge and industry experience to assist clients in protecting their cutting-edge technology.
Michigan State University – BSEE
David Mittel, Accounting Director, CPA
As the Accounting Director for Hanley Flight & Zimmerman, I bring 20 years of accounting experience to the company. I oversee all financial aspects of the business, from billing and payroll to planning and forecasting. During my career, among other things, I spent many years at a public accounting firm preparing tax returns and becoming familiar with the accounting operations of various businesses. I also worked as part of a consulting team for a publicly traded company during a post-merger integration.
- Quincy University – BS Accounting
Bill O’Connor, Office & Recruitment Manager
At HFZ, I am pleased to work with a tremendously talented team of attorneys, engineers and professional staff performing their best work for our clients on a day to day basis. I direct a recruiting strategy for the hiring of patent engineers, patent agents, patent attorneys, administrative staff, interns and temporary workers. I help facilitate the onboarding of new employees, and the planning of special events and celebrations for the firm throughout the year. Prior to working at HFZ, I was a public spokesperson for various companies within the automotive, textbook, technology and consumer goods industries.
- Oakland University – BA Communications
- University of Washington – Master of Fine Arts
Guadalupe Zambrano, Administrative Coordinator
I am the Administrative Coordinator at Hanley, Flight & Zimmerman. I have been part of HFZ for 7 years overseeing the Front Reception Desk and staff, working with various vendors providing office services to our firm, while also supporting specialty projects for other administrative departments. I enjoy helping HFZ maintain good relationships within building management and building services, as well as, our outside vendors. Prior to working at HFZ, I attended Fox College and graduated with a certificate of Applied Science in Administrative Assistant.
- Fox College – Applied Science in Administrative Assistant Certificate
Jaritssa Martinez, Docketing Assistant
I am a Docketing Assistant at HFZ. This year will mark 7 years working with the firm. At HFZ, I help run the Front Reception Desk, work on various clerical tasks within the firm in support of legal assistants, attorneys, docketing, recruiting and operations. I work with managing the physical files in the office as well. Prior to joining the HFZ team, I received my Associates of Applied Science in Administrative Assistant at Fox College. I also attended DeVry University and received my Bachelor of Science in Technical Management.
- Fox College – Associates of Applied Science in Administrative Assistant
- DeVry University – BS Technical Management
Sue Stevens, Docketing Specialist
Prior to joining HFZ, I worked at The Chicago Board Options Exchange for 17 years in different capacities, from Administrative Assistant in the PR Department, to Assistant to the Executive Director of Business Development and Program Director in the Educational arm of the Exchange, where I travelled extensively throughout the United States and Canada coordinating options seminars for investors and brokers.
Since joining HFZ, first as a part-time receptionist, currently as the IP Docketing Manager, I bring my attention-to-detail and organizational skills to help our attorneys and patent engineers achieve success for our clients in their IP endeavors.
- Governors State University – BA in Media Communications
- Roosevelt University – MS in Marketing Communications
Hillary White, IP Legal Assistant 2
I have been with Hanley, Flight & Zimmerman since 2016 assisting in all steps of the patent prosecution process, to ensure accuracy in our filings and to make sure all docketing deadlines are timely met. Previously, I worked as an assistant at a law firm focused in foreclosure practice. I earned a B.A. in Art and Management from Earlham College in Richmond, Indiana. I also received my paralegal certificate from the ABA-approved paralegal program at Loyola University.
- Indiana University, Bloomington – Master of Library Science
- Earlham College – BA Art and Management
- Loyola University – Paralegal Certificate
Amanda Hunt, IP Legal Assistant 2
At HFZ I assist in the preparation and prosecution of patent applications in a wide range of fields including electronics, software, and aerospace engineering. I find the work challenging and stimulating. Prior to joining HFZ, I worked at Spruson and Ferguson in Sydney, Australia, prosecuting patent applications in their mechanical department. I have a degree in Mechanical Engineering from the University of Sydney, a Graduate Diploma in Industrial Property from the University of Technology, Sydney, and a Paralegal Certificate from the College of DuPage, Glen Ellyn.
- University of Sydney – BE Mechanical Engineering
- College Of DuPage – Paralegal Certificate
Natalie Arroyo, IP Legal Assistant 2
At HFZ, I am grateful to assist our experienced patent attorneys with the preparation and prosecution of the patent application process. As a legal assistant I am responsible for acquiring and maintaining client systems and procedures as well as monitoring and assisting my practitioners in meeting docketed deadlines. Prior to joining at HFZ, I worked as a paralegal for a bankruptcy law firm which specialized in commercial and residential real estate default work.
- Triton College- Associates Degree in Political Science
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Emma Davis, Accounting Assistnant
Before joining the HFZ team, I studied Accounting and Finance at the University of Kentucky. As the Accounting Assistant, I work with our Accounting Director and our firm stakeholders to streamline billing processes. I also prepare budgets, accruals, and reconciliations for our clients. My education in accounting continues as I am working on a master’s degree through the University of Illinois and am studying to become a CPA.
- University of Kentucky – BS Accounting, BBA Finance
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Kelsey Schindl, Legal Assistant 2
Prior to joining HFZ, I studied Political Science at the University of Minnesota- Twin Cities, with an interest in law. I enjoyed my time researching political identities and voting behavior. I managed my academic studies while working full time and learned to prioritize, organize, and schedule my time efficiently. These skills have transferred well into my work as a legal assistant for HFZ, as I collaborate with my attorney team in successfully preparing and filing patent applications and prosecution with the United States Patent & Trademark Office. Additionally, I help handle the firm's patent annuities, and in training future legal assistants.
At HFZ, I leverage my background in research and analysis, my ability to multi-task while maintaining a high level of attention to detail, when working with Fortune 500 and 100 companies.
University of Minnesota- Twin Cities, BA in Political Science with High Distinction
Elizabeth Hughes, Legal Assistant 2
I joined Hanley, Flight & Zimmerman in 2021 and work with HFZ's wonderful team of attorneys and engineers to ensure the filing and maintenance of patent applications and trademarks. I also assist in training new assistants and coordinate with our team members overseas. Prior to HFZ, I worked with an independent company on trademark applications and started my legal work in family law.
- Carthage College in Kenosha, WI – Bachelor’s in Music with an emphasis on Education
- College of Lake County in Grayslake, IL – Paralegal Certificate
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Austin F. Zalewski, International Filing Specialist
As a legal assistant at HFZ I assist our patent attorney team in a variety of ways during the patent prosecution process. My primary responsibility is in the facilitation of international filings and the payment of patent annuities. International filings require proper document preparation, correspondence with foreign counsels and communications with clients. For my work with patent annuities, I monitor annuity deadlines and coordinate with clients and foreign counsels to maintain ongoing patent protection for our clients' intellectual property.
My background in the liberal arts fostered a strong attention to detail and the skills necessary to adapt to, understand and thrive in diverse situations, which I apply daily in my work at HFZ.
Lawrence University – Bachelor of Arts in Philosophy and Religious Studies, minor in Economics
Dominican University – Bachelor of Professional Studies in Legal Studies
NALS Accredited Legal Professional (ALP) Certification
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