Patent Infringement / Application Expert Witnesses: 56

Dr. Glenn Prestwich  is a National Academy of Inventors fellow with over 45 years of experience as a professor, entrepreneur, and biotech startup C-suite executive. Dr. Prestwich specializes in Biomedical Intellectual Property. He has been a prolific inventor since 1977, and an expert witness in IP law cases since 2007. He is an inventor on over 95 patents and patent applications, including 48 issued patents.

Litigation Support - Dr. Prestwich brings to all legal and technical cases a deep appreciation for how chemistry informs the invention and development of products that offer solutions to problems in the life sciences and medicine, ranging from disease detection and treatment to tissue healing and regeneration. He’s been involved in intellectual property litigation that concern medical devices, diagnostics, new pharmaceuticals, drug delivery, agrochemicals, and consumer products.

As an expert witness, Dr. Prestwich enjoys the challenges of dissecting the validity (or invalidity) of patents in litigation. He appreciates the subtleties of claim construction and works collaboratively with attorneys to identify successful arguments based on sound science and legal principles. He has drafted over 40 expert reports, declarations, and affidavits in support of his attorney clients.  He has been deposed 18 times and testified in Court four times.

Glenn D. Prestwich on Accessible and Experienced Expert Witnesses

Areas of Expertise:

Organic Synthesis Natural Products Chemistry Medicinal Chemistry Mechanistic Enzymology Agricultural Chemistry Chemical Biology Biochemistry

Intellectual Property Litigation Medical Devices Diagnostics New Pharmaceuticals Drug Delivery Agrochemicals / Pesticides Consumer Products

Publications - Dr. Prestwich is an organized, clear, and effective writer. He has co-authored  over 610 additional peer-reviewed articles in the scientific literature, and written over 50 single-author scientific publications, reviews and book chapters. His publications encompass areas such diverse topics as anti-cancer drugs, gels for wound repair, cell therapy, and regenerative medicine, insect and pest control agents, cholesterol-lowering agents, lipids and cell signaling tools, and anti-inflammatory agents.

Brooks Hilliard, CMC, CCP is the only actively practicing expert witness in the world who is both a Certified Management Consultant and a Certified Computing Professional specializing in computer system selection and problem resolution. He has testified more than 30 times as a computer expert witness and has been engaged on more than 90 such matters for both plaintiffs and defendants. Mr. Hillard has done expert witness and consulting assignments in 25 states, and has qualified as an expert witness on computer software and hardware (including ERP, SCM and CRM systems) in both state and federal litigation. His expert witness engagements have included courtroom and deposition testimony in lawsuits, arbitrations, mediations and formal governmental hearings. 

Areas of Expertise:

• Allegations of ERP and CRM system failures and/or defective business software/systems
• Computer Forensics
• Intellectual property
• Valuation of computer hardware, software and services
• Regulatory, Procurement and Tax matters

Peter Crosby has over 45 years experience in the Medical Devices Industry. He has served as  CEO of six medical device companies (public and private) in four countries, and has been a member of the board (including chairman of the board) of over 10 companies. Mr. Crosby is an accomplished entrepreneur and company builder, and has brought many medical device products to the world market. He is an inventor on over 50 US patents and applications.

Education includes a Bachelor of Engineering (Electrical) and Master of Engineering Science (Biomedical Engineering).

Litigation Support - Mr. Crosby has served as an expert  in many cases including product liability, intellectual property (patent disputes including infringement, validity, IPR and ITC), alleged misappropriation of trade secrets, fiduciary duty of directors, and commercial contracts disputes (including commercially reasonable efforts"). 

Product Expertise:

Implantable Devices Cochlear Implants Cardiac Pacemakers Implantable Defibrillators Artificial Hearts and LVADs

Neurostimulation Devices In Vitro Diagnostics Medical Device Software Patient Monitoring Imaging / Ultrasound and X-Ray)

View Peter Crosby's Consulting Profile.

Dr. Rolf Biernath, PhD, Chemical Engineering, University of California, Berkeley, and BChE, Georgia Institute of Technology) has over 35 years of experience in the Chemical Industry with a concentration on Polymer Science and Engineering and Material Science Fracture Mechanics. He worked in Materials and Processes at 3M for 31 years in senior technical roles developing materials, processes, and systems. His 58 US patents span a broad range of scientific and engineering disciplines.

Litigation Support - Dr. Biernath is a Patent & Civil Liability Expert Witness having worked with in-house and outside attorneys in prior art searches. He's drafted claims and strategized claims in a variety of fields. He has written Expert Reports for Civil Liability, including material failure analysis, computer simulation, and manufacturing assessment. He is known for his ability to explain complex technical problems simply.

Areas of Expertise:

Adhesives and Tapes Polymer Engineering Failure Analysis and Prediction Electronic Displays (LCD, ePaper) Light Sources (LEDs, LASERS) Short-Wave InfraRed (SWIR) imaging

Applied Physics Metrology Optical Sensors Optical Films Mid-IR Sensors and Emitters Physics-based Digital Twins, Computer Modeling

Background Experience - Dr. Biernath has 58 Issued US Patents on new products and processes, including:

• Industrial Adhesives and Tapes – materials selection, development, automation, and tape application processes
• Electronic Materials – epoxy thermoset adhesives & application process, high speed electronic connectors
• Electronic Displays and optical display films, outdoor digital displays
• Microreplication and textured adhesives and processes, microfluidics, e-Paper
• Signage – retroreflective signage, license plate recognition, ADAS, and Human Invisible, Machine-Readable Coding System
• IoT and IIoT / Automatic and predictive selection and replacement

Dr. Biernath has expertise in stresses in planar systems due to a range of causes including, thermal expansion mismatch, humidity and solvent uptake or loss, and cure shrinkage. He understands assembly processes for tapes and adhesives including interpreting Technical Data Sheets, Application Data Sheets, developing test methods, and selecting materials.

View Biernath Consulting, Inc.'s Business Consultant Profile.

Baw Chng is a highly experienced Networking, Communications, Computer, and Software expert. He is an inventor with 11 patents in communication and networking technology. He is also a published author, public speaker, and USPTO Registered Patent Agent.

Experience: 24+ years of professional experience in telecom and networking. Consulted for Tier-1 national communication service providers and their strategic technology vendors. Experienced in engineering R&D, standards development, and patent assessment. Baw Chng has published papers, given public talks/presentations, provided expert consulting, written expert reports, provided deposition & testimonies as an expert witness.

Ideal Client - Litigators who work on cases that involve complex technical issues, patent and intellectual property related issues, business contract cases that involve sophisticated technology.

Areas of Expertise

Computer Networking Wireless Communication Cellular Technology Telecommunication Web Services

Cloud Computing Patent Infringement Call Record Analysis Internet-of-Things Computer Software

Technical Skills and Knowledge include:

• 3GPP and 3GPP2 families of cellular mobile broadband radio access and core network standards, small cells, femtocell, inter-technology handover and roaming
• IEEE 802.11 (Wi-Fi, mesh, infrastructure), 802.3 (Ethernet), 802.15 (WiMAX), 802.16 (WPAN) families of standards
• Network architecture, telecom system architecture
• Internet standards and protocols, TCP/IP, UDP, RTP, DHCP, DNS, ARP, GRE, etc.
• Internet-of-Things (IoT), M2M, LoRa, LoRaWAN, LTE Cat-M, NB-IoT
• Hotspot 2.0 / Passpoint (for Wi-Fi)
• IPsec, IKEv2, L2/L3 tunneling, NAT/NAPT (firewall)
• SAML, SAMLv2 federation; oAuth, oAuth 2.0 authentication; RADIUS, DIAMETER
• Network & device management, Broadband Forum TR-69 and IETF SNMP standards
• Software Defined Networking (SDN), Network Function Virtualization (NFV)
• Self-Organizing Network and Self-Optimizing Network (SON)
• Web Services, REST/JSON API design & implementation, HTTP
• Cloud computing, Amazon Web Services (AWS)
• Big Data, Avro, Parquet
• Plastic Optical Fiber (POF), Optical Networking
• Software architecture, Object-oriented design and programming, design patterns
• Go Lang, C, C++, Perl, LabVIEW, BASIC, Pascal, Unix shell scripting languages
• HTML, CSS, web design & development, web hosting, JavaScript, CGI Programming
• Operating systems (RTOS, various Unix/Linux variants, iOS, Android, etc.)
• Quality of Service (QoS), Fair Scheduling, Fair Queueing
• Interconnection networks and switching fabrics for parallel computers, network switches, and routers

Master's degree in Computer Science (MSCS), Bachelor's degrees in Electrical Engineering and Computer Engineering (BSEE, BSCoE), Washington University in St. Louis.

View BAWMAN LLC's Consulting Profile.

Michael Nranian, JD, MBA, MS has over 30 years experience focusing in Product Development, Intellectual Property, Patent Litigation, Legal and Technical Compliance, and Product Liability Litigation. He is a licensed attorney in Michigan, Texas, & the United States Patent and Trademark Office. Mr. Nranian is a Six Sigma Black Belt, Professional Engineer, & Certified Project Management Professional. He has an in-depth background and education in Law, IP, Electrical, Chemical & Computer Engineering, & Business. He has testified extensively as an expert witness in depositions, hearings, and trials in state & federal courts.

Mr. Nranian conducts Product and Technology Analysis, Patentability & Prior Art Research,and provides Technology & Litigation Support for Intellectual Property. His litigation background includes patent infringement / non-infringement under literal infringement and the doctrine of equivalents, patent validity / invalidity, prior art, & file-wrapper estoppel, for both ITC and Federal cases, including Inter Partes reviews. He conducts analysis of patents and products, prepares claim charts, & expert witness reports. This includes testimony and document preparation for cases before state, and federal court jurisdictions, and the International Trade Commission and the Patent Trial and Appeal Board.

Mr. Nranian is thoroughly familiar with all 101, 102, 103, 112, and other enablement and prior art arguments. His experience includes Technology Standards Boards and Licensing Authorities, Antitrust / DOJ, Technology Development and Transfer, Patents, Trademarks, Trade Secrets, and Copyrights, Licensing, Unfair Competition/Trade, False/Deceptive Advertising, & Lanham Act Actions, & Class Actions.

His Product Liability Expert Witness litigation background includes all types of Safety Systems, Electrical Systems, Fires, Accident Reconstruction, and Evaluation of Alternative Designs for Automotive, Medical and other industries. He has over 29 years of experience in Automotive Safety Systems, Sensors, Seatbelts, Airbags / Curtains, Seats, Diagnostic Systems, Crash Recorders, Crash Pulse Analysis, System Diagnostic, Fault Codes, Structure (including roof-crush and door) and front, side & roll-over systems (including sensing and algorithm development) for domestic and international corporations. He is thoroughly familiar with all regulatory (including FMVSS), and corporate due-care requirements, & preemption arguments, occupant kinematics, & injury causation.

SERVICES: Audio and video recording authentication, enhancement, transcription, and analysis, including body worn camera and security video recordings. Acoustic forensic analysis, including audibility of warning signals, speech - voice comparison, and gunshot - weapon recording analysis (e.g., Taser, ShotSpotter).  Audio technology and patent expert witness/consultant. Forensic musicology analysis. Forensic field recording and analysis per ANSI and recognized standards.

EXPERTISE: Consultation in over 800 audio-video and acoustic forensic cases since 1987. Expert testimony over eighty times, in U.S. Federal and State courts including the United States International Trade Commission (USITC), and courts in Canada and International arbitration panels (World Bank-ICSID).

DEGREES/MEMBERSHIPS: Ph.D. UC San Diego (Computer Audio) 1987; Fellow, Audio Engineering Society (AES); Member, Society of Forensic Engineers and Scientists (SFES), Acoustical Society of America (ASA).

Chris Silver Smith is an Internet Marketing Expert who has served in lawsuits involving search engine optimization (SEO), search advertising (Pay-Per-Click advertising / PPC), social media, domain names, and more.

Mr. Smith bears the distinction of long occupying the topmost organic rankings for searches for "SEO Expert Witness", establishing that he is a not only able to speak to the theory of search engine optimization, but is also able to practice it. Smith's legal work has enabled his clients collectively to be awarded more than $94 million in their court cases, and his clients prevailed in the majority of cases he has served upon.

Litigation Support - Mr. Smith helps large companies and large brand names protect their marks in trademark infringement cases and online defamation cases. He has served as an expert on behalf of PODS Enterprises, Starbucks, Versace, GoDaddy, Adidas, and others. He does not assist companies involved with gambling, porn, recreational pharmaceuticals, tobacco, alcohol, multi-level marketing, or cults.

Specializations:

Search Engine Optimization (SEO)  Search Advertising (PPC)  Google Ads Search Certified

Social Media (Facebook, Twitter, Instagram, YouTube, TikTok, Tumblr, etc) Domain Names Defamation & Reputation Management

Background Experience - Mr. Smith has a diverse background as he was self-taught programming in high school, and was first trained in hypertext, the protocol subsequently succeeded by HTML, which continues to be the dominant markup language for webpages. Smith also learned higher-level C programming language in college, and later went on to work for a decade for Verizon where he ultimately was head of the technology department for one of the company's largest websites. In his roles at Verizon, Mr. Smith performed software development in multiple internet programming languages that included a proprietary Verizon language, PERL, PHP, and JAVA. 

Mr. Smith also provided user-interface design and served as an analyst. He was promoted to overseeing multiple developers and teams for usability research, search engine development, SEO, graphic design, internet analytics, advertising system design, and advanced research. As the company's pioneer in SEO research, Mr. Smith was awarded the company's highest honor, the Individual Excellence Award, for increasing search engine referral traffic and associated revenues. Smith's contribution also resulted in multiple patents awarded for search and presentation technologies.

After leaving Verizon, Mr. Smith worked for a couple of prominent and exclusive internet marketing companies before founding his own agency at Argent Media™.

Chris Silver Smith has long been a writer for Search Engine Land, one of the industry's top news and information websites for search engine marketing, and he has spoken at numerous conferences on his areas of expertise. 

View Argent Media™ Consulting Profile.

Joseph Grekoski, CVA, is the founding principal of Acclimation Group. Mr. Grekoski specializes in Economic Damages Calculations for litigation involving defamation, breach of contract, copyright infringement, trademark infringement, and trade dress infringement.

Mr. Grekoski is adept at leveraging advanced social media analytics to quantify lost profits, disgorgement, and reputational harm, with experience calculating reputational harm for high-profile individuals. He is skilled in Name, Image, and Likeness (NIL) valuation and advisory, helping clients navigate the evolving landscape of personal brand monetization.

Mr. Grekoski's experience includes holding the position of Director at an IP valuation firm, working on Bank of America’s #1 ranked equity research team (power and utilities), and advising financially distressed businesses in investment banking.

Mr. Grekoski graduated Magna Cum Laude from Binghamton University, earning a Bachelor of Science degree in Business Administration with a concentration in Finance. He is a Certified Valuation Analyst (CVA), a designation conferred by the National Association of Certified Valuators and Analysts (NACVA). Given his contribution to the field, Mr. Grekoski has been recognized as one of the 2024 30 Under 30 Honorees by NACVA. He also holds the designation of Certified Licensing Professional (CLP), which recognizes individuals who have proven expertise, skill, and knowledge in the licensing and commercialization of intellectual property.

With a PhD in artificial intelligence, Dr. Istvan Jonyer is a distinguished expert with 25+ years of experience across academia, industry, entrepreneurship, and venture capital. Renowned for expertise in AI/ML, smart TV platforms, and software technologies, he provides clear, persuasive insights in litigation. His perspective bridges technology and business, shaped by launching Google TV, designing networking equipment at Nortel, founding AI startups, and evaluating patents for investors. He has testified in federal courts, PTAB, and arbitrations, praised for articulate reports and depositions that demystify complex tech.

Areas of Expertise

• Artificial Intelligence: Machine learning, neural networks, deep learning, graph mining, genetic programming, data mining, clustering, social network analysis; applications in healthcare, advertising, privacy (e.g., facial recognition), LLMs.
• Smart TV/Streaming: Google TV (Chromecast predecessor), Android TV; OEM partnerships (Sony, LG, Vizio); UX, content delivery, ecosystem scaling.
• Networking: Mobile wireless protocols, TCP/IP, routers, CDN, packet switching, distributed systems.

Formal Education

• Ph.D., Computer Science & Engineering, Artificial Intelligence, The University of Texas at Arlington – Best Dissertation Award.
• M.B.A., Carnegie Mellon University, Tepper School of Business

Expert Witness Experience

Proven in 20+ cases, Dr. Jonyer opines on patent infringement, invalidity, IPRs, trade secrets, breach of contract, and privacy, involving technology giants like Google, Meta, Apple, Netflix, Nokia. Deposed 4+ times; testified at trial. Works with plaintiff/defense, with law firms like Ropes & Gray, Fox Rothschild, Boies Schiller.

Professional expert in the field of Electromagnetics and Compatibility (EMC) with nearly 45 years working in applied engineering design, testing, certification, education and consulting.  Author of five books on EMC design and application making this complex field easy to understand, "EMC Made Simple". 

Major focus is on engineering principles in all facets of electrical engineering regardless of end use environment. Patent infringement, biological harm, disruption of services are his expertise.