Patent Litigation Expert Witnesses

Patent litigation expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on patent litigation. The patent litigation expert witness listings on this page are typically from fields/areas of expertise such as: Aviation & Aerospace, Energy, Engineering, Intellectual Property, Manufacturing, Mechanical Engineering, Medical Devices, Ophthalmology, Optometry, Otolaryngology, Products Liability, Sleep Medicine, and Software Engineering.

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David Paulus, PhD, PE

Mechanical Engineering & Human Factors Expert

Paulus Consulting, LLC

Fort Smith, Arkansas
Engineering, Intellectual Property - Mechanical Engineering Expert, Intellectual Property, Patent Validity, Human Factors Expert, Product Liability, Mechanical Design Expert Witness, Patent Litigation, Safety, Patent Infringement Expert, Industrial Engineering Expert
Dr. David C. Paulus is a nationally recognized expert in mechanical engineering, human factors, and product design, with over two decades of academic, research, and litigation consulting experience. He holds a Ph.D. in Mechanical Engineering from Colorado State University, complemented by a Master’s in Industrial Engineering and a Bachelor's in Mechanical Engineering from the University of Tennessee. He currently serves as a Professor of Practice and Director of Graduate Programs in Engineering and Operations Management at the University of Arkansas, Dr. Paulus is a Professional Engineer (PE) and Certified Human Factors Engineering Professional (CHFEP). Dr. Paulus offers an exceptional blend of technical depth and legal acumen, having served as an expert witness in over 30 product liability and patent litigation matters, including high-profile cases involving Peloton, Big Ass Fans, ICON Health & Fitness, and Mad Dogg Athletics, among others. His expert testimony spans federal and ...
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Joseph R Travers

Newport Beach, California
Products Liability, Manufacturing - Fitness, Fitness Equipment, Gym, Treadmill, Bicycle, Group Cycle, Spinning, Strength Training, Weight Training, Product Quality, Asia Manufacturing, Human Factors, FMEA, DFMA, Design for Serviceability, Products Liability, Premises Liability, IP Litigation , Patent Litigation
Over 25 years in the fitness equipment and bicycle industries bringing to the table a well-rounded professional perspective. From Mechanical Engineer designing products to head of Product Development & Quality ensuring manufacturing process and sourcing excellence, my expertise covers a wide spectrum of technical disciplines. With experience in technical field service training and being an avid user of fitness and bicycle equipment, I can also relate well with the plaintiff’s side of a product liabilities claim. I have provided testimony and sat as the most knowledgeable defense party on over 65 depositions as well as participated in mediations and litigations in the states of Alabama, Arizona, California, Colorado, Florida, New Jersey, New York, Texas as well as well as internationally in Canada, China, and Hong Kong. During college and after graduation, I was employed as a Mechanical Designer then Mechanical Engineer in the bike industry for Profile Design & Primo Products. I...
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Tara Parhizkar, B.S., M.S., Ph.D., P.E.

Accident Investigation – Energy Infrastructures

Los Angeles, California
Energy, Mechanical Engineering - Power Grid, Energy Infrastructures, Marine Industry, Accident Investigation, Power Tools, Patent Litigation, Construction Safety, Utilities, Oil & Gas, Wildfire, Public Safety, Root Cause Analysis, Failure, Accident, Energy, Climate Change, Renewable Energy, Disaster, Catastrophic Injury, Safety
Dr. Tarannom Parhizkar, Ph.D., P.E., is a distinguished expert in power grids and the oil & gas industry, with over 16 years of professional experience. She is an Adjunct Professor at UCLA and a trusted authority in accident investigation, failure mode and effects analysis (FMEA), and common cause failure assessment, providing attorneys with clear, defensible technical opinions. Her litigation and consulting work focuses on accident reconstruction, root cause analysis, and patent disputes. She has supported cases involving energy infrastructure accidents, pipeline integrity, combustion systems, equipment failures, and environmental exposures. Known for her meticulous methods and integrity, Dr. Parhizkar offers objective, reliable insights that help clarify complex technical issues in court. Dr. Parhizkar has authored a book, multiple book chapters, and more than 30 peer-reviewed journal publications. She is also an active academic contributor, serving as Adjunct Professor at UCLA,...
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David C Brodner, MD

ENT and Sleep Medicine Expert for Over 20 years

Boynton Beach, Florida
Otolaryngology, Sleep Medicine - Sinus Surgery, Traumatic Hearing Loss/Vertigo, Defense Base Act, Patent litigation, Mold Exposure, Sleep Apnea, insomnia, sleep deprivation, sleep medications, sinusitis, Balloon Sinus Dilation, Balloon Sinuplasty, ENT, snoring, tonsils, CPAP, driver fatigue, ear nose and throat, hearing loss, tinnitus
Full time clinician double Board-Certified in both Otolaryngology (Ear, Nose and Throat) – Head and Neck Surgery and Sleep Medicine. Over twenty years of consulting and forensic experience: expert witness for Plaintiff and Defense cases - traumatic hearing loss/vertigo, mold exposure, class-action tobacco/oil spill/3M, medical device patents, sleep deprivation accidents, and medical malpractice. Dr. Brodner also performs VA Nexus letters, utilization and disability review, IMEs (in-person and Zoom - Domestic and International), and Industry clinical research/R&D. National thought leader on Balloon Sinus surgery. Served on the Medical Advisory Board for Entellus Medical charged with developing and implementing a physician education program for teaching balloon sinus surgery to other ENT surgeons. Duties included lectures, small-group conferences, live demonstrations during surgery, webinars, and hands-on cadaver labs. Published original research on the safety and efficacy of...
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Prof. Ron Barrett, Ph.D., NAI Fellow, AIAA Asc. Fellow

Aviation Flight Safety, Liability & Patent Expert

Barrett Aerospace Technologies

Lawrence, Kansas
Aviation & Aerospace, Engineering - Aerospace, Aviation, Engineering, Patent Litigation, Flight Safety, Structures, Aircraft Design, Stability and Control, Propulsion, UAV, UAM and UAS, Drone, Missile, Munition, Helicopter, Electric Flight, Flying Toys, Flight Testing, Aircraft Crashworthiness, Cost Analysis
• Full Professor of Aerospace Engineering • Fellow, National Academy of Inventors (NAI) • Associate Fellow, American Institute of Aeronautics and Astronautics (AIAA) • Winner of the Discover Magazine Award for Aerospace and Aviation • Led more award winning AIAA Aircraft and Missile Design teams than any other in the world • Listed by Stanford/Elsevier as one of the world’s top 2% most cited Technologists • Most cited member of the AIAA Aircraft Design Technical Committee • Published more than 400 professional works • Holder of 25 patents • Worked on projects for all of the branches of the US DoD, NASA, NSF, DARPA, all major US aerospace corporations and many minor. I am the only NAI Fellow and AIAA Associate Fellow listed on SEAK. These distinctions make me exceptionally resistant to Daubert motions in my areas of expertise and would give your side "one up" on adverse parties. I have worked in many corners of aerospace technology from flight test engineer on small aircraft to ...
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Matthew Sarkar

Patent Litigation | Hatch-Waxman | Inhaler Devices

Cambridge, Massachusetts
Medical Devices, Intellectual Property - Patent litigation, Hatch Waxman, ANDA, Inhaler, Inhalation, Inhaled drug delivery, Drug delivery device, Intellectual property, Branded Pharmaceutical, Generic Pharmaceutical, Respiratory, Medical device, Device design, Device development, Trade secret, Asthma, COPD, Consulting expert, Hatch-Waxman, Expert Witness
Matthew Sarkar brings a rare combination of insider industry experience and expert witness credentials to Hatch-Waxman patent litigation involving inhaled drug delivery and respiratory device technology. As a co-founder of the device business acquired by Vectura plc — one of the UK's leading inhaled therapeutics companies — he led the development of novel inhalation devices from concept through clinical trials, and subsequently took strategic responsibility for Vectura's device IP portfolio, managing licensing, due diligence, and technology transfer across the respiratory sector. He is a named inventor on more than 20 granted patent families in medical and drug delivery technology, giving him direct, first-hand insight into the inventive process that is central to patent validity and infringement analysis. Mr Sarkar has provided expert analysis in Hatch-Waxman litigation involving inhaler technology, breath actuation, and dose counter mechanisms. His technical expertise spans the f...
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John C Galanis, MD FACS

Expert cataract surgery, glaucoma, and eye disease

Galanis Cataract and Laser Eye Center

CHESTERFIELD, Missouri
Ophthalmology, Optometry - cataract surgery malpractice, glaucoma surgery malpractice, LASIK, PRK, refractive surgery, implant lens, vision loss, eye trauma, cornea, retina, optic nerve, orbit, macular degeneration, diabetic retinopathy, ophthalmology, ophthalmologist, macula, retinal detachment, patent litigation
* Board Certified in Ophthalmology by the American Board of Ophthalmology * Fellowship in glaucoma, Estelle Doheny Eye Institute, University of Southern California * Fellow, American Academy of Ophthalmology * Fellow, American College of Surgeons * Board of Directors, St. Louis Society for the Blind and Visually Impaired * Assistant Clinical Professor of Ophthalmology - St. Louis University School of Medicine * Adjunct Assistant Professor- University of Missouri St. Louis School of Optometry * Excellent communication skills -experienced speaker to the public and medical professionals * 25 years of experience as an expert witness in ophthalmology * Qualified as an expert in state and federal court * Experienced in deposition and trial testimony * Available for plaintiff and defense cases * Experienced in patent litigation. * I have served as an expert witness in several major intellectual property cases for pharmaceutical companies and ophthalmic device manufacturers. * Feel free to...
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Richard Fincher

Semiconductor, Software IP, Manufacturing Disputes

Richard Fincher Consulting LLC

Dallas, Texas
Engineering, Software Engineering - Semiconductors, Semiconductor Mfg, Software IP, Patent Litigation, Trade Secrets, Source Code, Embedded Systems, ASIC Modeling, Wafer Fabrication, Yield Forecasting, Manufacturing Systems, Product Failure, Reliability Testing, Electronics Design, Process Engineering, International Disputes, Expert Testimony, Federal Court, Arbitration
Richard Fincher is a consulting and testifying expert witness in semiconductors, software intellectual property, patents, and advanced manufacturing systems. He supports litigation teams in U.S. Federal and State Courts, JAMS arbitration, and PRC civil proceedings, delivering clear, technically rigorous, and defensible expert analysis. Mr. Fincher specializes in ASIC cost and yield modeling, wafer manufacturing economics, and semiconductor process engineering. His experience includes deep analysis of cost models, yield forecasting, and wafer-level fabrication data used to assess production efficiency, defect causes, and technology node economics. He has provided testimony and reports on software source code, trade secret misappropriation, and patent validity/non-infringement across both hardware and software domains. With over 40 years of global engineering and executive leadership, Mr. Fincher has served as Vice President of Engineering, Chief Technology Officer, and General Mana...