Product Liability / Defects Expert Witnesses: 38

Harvey C. Voris’ entire engineering career has been devoted to the Fitness Industry. He has over 35 years of Fitness Equipment Design experience and has been issued 7 U.S. utility patents. Mr. Voris has a Bachelors of Science in Engineering from UCLA with a specialization in Bio Structural Mechanics. 

Mr. Voris' Masters in Engineering is from Cal State Long Beach where he specialized in Fatigue and Failure Analysis. He has spent 21 years devoted to the development and promotion of safety standards for the fitness industry. Mr. Voris has authored numerous standards and has chaired the ASTM committee devoted to fitness standards development since 1995. 

Litigation Support - Mr. Voris provides engineering analysis and accident reconstruction related to consumer and fitness products and facilities. His services are available to attorneys representing both plaintiff and defense. With 35 years of experience, a biomechanics background, and extensive experience in design and product testing, Mr. Voris speaks with authority on the following critical issues:

Product Liability - Patent Development - Patent Infringement - Facility Risk Management - Standards Compliance

View Harvey Voris' Consulting Profile.

Meyer R. Rosen, FRSC, FAIC, CPC, CChE, is a leading creative consultant for the Legal Profession and specialty Chemical / Personal Care Industries. He is the Founder & President of Interactive Consulting, Inc. (www.chemicalconsult.com). 

Meyer is a Forensic Litigation expert for both plaintiff and defense in hazardous chemicals, products liability, personal injury, spa injuries, bleaching, hair coloring, fires and explosions, intellectual property and trade secret cases. He also provides Technical Marketing, New Business Development, Technical Consulting and Professional Editing services internationally to the Specialty Chemical, Personal Care, Cosmetic, Pharmaceutical, Medical Device, and Allied Industries. 

Meyer also has 15 years of experience as a Professor of Fire Technology at Westchester Community College. Mr. Rosen is Editor- in- Chief of Harry’s Cosmeticology, 9th Ed. A 2,600-page trilogy on all aspects of the cosmetic industry (www.harryscosmeticology.com)’ as well as being Emeritus-Editor-in-Chief for EuroCosmetics magazine (Germany) and Editor-in-Chief of the Delivery System Handbook. 

Technology Expertise (Intellectual Property/Chemical Industry): Mr. Rosen provides consultation and litigation support in patent infringement, trade secret issues, and licensing matters. His scientific areas of expertise include, but are not limited to:

• Organosilicones: Surfactants, Emulsions, Foams, Antifoams, Silane Coupling Agents
• Water Soluble Polymers, Poly(ethylene oxide), Polyethylene Glycol, and Poly (acrylamide) and Water Insoluble Polymers
• Colloid and Surface Chemistry: Stability of Dispersions, Wetting & Spreading Phenomena, Suspensions & Emulsions, Clays, Paint & Coatings, Personal Care, Cosmetics
• Flocculating and Coagulating Agents
• Applied Rheology, Rheology Modification of Aqueous & Non-Aqueous Media

Certifications:

• Chartered Chemist and Fellow: Royal Society of Chemistry – London
• Nationally Certified Professional Chemist and Professional Chemical Engineer
• Fire and Explosion Expert (Advanced Training)
• Fellow: American College of Forensic Examiners
• Fellow: American Institute of Chemists
• Diplomate: American Board of Forensic Examiners
• Diplomate: American Board of Forensic Engineering and Technology

View Meyer Rosen's Consulting Profile.

Daniel G. O'Kelly has over 46 years of experience as a range instructor, firearm designer, builder, auditor of licensees, collector, and expert on firearms and ammunition. 

Mr. O'Kelly served for 11 years as a Police Officer and for 23 years as a Special Agent for the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF). As one of ATF’s leading firearm experts, he was Lead Instructor of Firearm Technology at the ATF National Academy. Since his retirement from the ATF, he has served as a Senior Corporate Manager for Cabela’s, the then largest firearm retailer in the world, where he co-developed a firearm technology and ATF compliance training program for that company, and is the Founder/Director of IFSA. 

Mr. O'Kelly then founded and is the Director of, the International Firearm Specialist Academy (IFSA), a guild of award-winning experts, former Federal Agents, Investigators, Police Officers, Medical Doctors, and an Attorney, in the Firearm and Forensics field.

Litigations Support -  Mr. O'Kelly has testified continually in depositions and in criminal & civil cases in State, Superior, Circuit, District and Federal Courts since 1978, and has been recognized as an expert witness in Federal and State courts since 1990. He has opined on the topics of:

 Noteworthy Cases

• Retained as Defense expert in the Alec Baldwin case.
• Testified in four Federal trials on the topic of federal firearm definitions from 2014 to 2019 which resulted in ATF undertaking a 2-5 year rewrite of the definition of a firearm “frame or receiver”, which reached a SCOTUS decision in 2022. 
• Testified in trials wherein 1289 items of firearm-related evidence were ruled out by the Court as a direct result of his testimony.
• Worked undercover in three international illicit arms dealing cases, including the Diveroli case which sparked the movie "War Dogs", and is one of two ATF Agents to ever perform an undercover investigation of illicit international firearm trafficking in Europe.   

View Daniel O'Kelly's Consulting Profile.

Mitch Jackson is a master communicator, lawyer and private mediator with over three decades of experience in the private sector. He's personally tried more than 70 trials and has a consistent track record of obtaining and negotiating numerous million-dollar verdicts and settlements, Mitch brings a massive amount of expertise to every case and matter he handles. He's served as a Judge Pro Tem with the Orange County Superior Court and fees mediator with the Orange County Bar Association.

Mitch’s accolades speak volumes: he’s an “AV” rated lawyer, the highest independent peer honor for ability and ethics by Martindale-Hubbell. He’s also been named California Litigation Lawyer of the Year in 2013 and Orange County Trial Lawyer of the Year in 2009.

When he's not in the courtroom or successfully mediating a resolution to a dispute, Mitch is on the move—traveling, speaking at conferences, and sharing insights through his blog and books. He’s written and co-written several notable works, including:

"AI in Law- Revolutionizing Your Legal Practice with Innovative Strategies and Tools" (click to read)

"Mastering The Art of Negotiation- Insider Secrets for Business Owners, Entrepreneurs, and Professionals"

"The Mediator's Handbook: Turning Conflict into Collaboration"

"From Courtroom to Boardroom: A Trial Lawyer's Guide to Winning Negotiations!"

"How to Create AI, Web3, and Metaverse Branding and Licensing Opportunities"

"The Web3, Metaverse, and AI Handbook"

"From AI to Blockchain: 14 Technology Trends Every Lawyer Must Know!"

"The Ultimate Guide to Social Media for Business Owners, Professionals, and Entrepreneurs"

Mitch’s influence extends beyond the legal field. He’s twice graced the stage at the Tony Robbins Business Mastery Event, captivating audiences of thousands. As a consulting expert in Sue Scheff’s "Shame Nation" and a contributing author to California’s Continuing Education of the Bar (CEB) in "Effective Introduction of Evidence in California - Chapter 54 Electronic and Social Media Evidence," Mitch is a sought-after thought leader.

Stay connected with Mitch on Linkedin and explore more of his work at his blog mitchjackson.com

Dr. Kazerooni is a Professor of Mechanical Engineering at the University of California, Berkeley, where he also serves as the Director of the Berkeley Robotics and Human Engineering Laboratory. With over 35 years of experience in mechanical engineering and a doctorate from MIT, he is a leading expert in automated machinery, including robotics, medical devices, ergonomics and human-machine systems, wearable and assistive devices, exoskeleton systems, as well as orthotic and prosthetic systems. He is the inventor of more than 200 US and International patents, over 80% of which have been licensed, and has been inducted into the U.S. National Academy of Inventors.

In addition to his academic teaching and research, Dr. Kazerooni is an active entrepreneur. In 2005, he founded Ekso Bionics (eksobionics.com), which became a publicly traded company in 2014 and now supplies the Ekso medical exoskeleton to rehabilitation centers worldwide. He later founded suitX (suitx.com), a venture capital-, industry-, and government-funded company providing industrial and medical exoskeletons. suitX was acquired in late 2021 by Ottobock, a medical device company in Europe.

Litigation Support - Dr. Kazerooni has been deposed and testified in various Intellectual Property cases. His services include thorough examination and reporting, depositions, and trial testimony as needed.

Areas of Expertise:

• automated machinery
• robotics
• medical devices
• ergonomics and human-machine systems
• wearable and assistive devices
• exoskeleton systems
• orthotic and prosthetic systems
• intelligent assist devices
• control algorithm

Dr. Mayer is an independent consultant and scholar that (for identification only) holds the position of Visiting Fellow in Human Flourishing,  Harvard University. He has been a full-time tenured professor with recent appoints in statistics, biostatistics, epidemiology, biomedical informatics, public health and medicine (psychiatry). He held various titles including, Professor (Part-time), Bloomberg School of Public Health and School of Medicine, Johns Hopkins University, Affiliated Professor, Mayo Clinic/ASU joint program in Biomedical Informatics, a member of the Research Staff at Mayo Clinic, and Professor at Arizona State University. 

Dr. Mayer continues to do research and mentor young physicians and medical students while doing a limited amount of consulting in epidemiology, biostatistics, statistics, observation studies and clinical trials. His consulting projects often focus on model development, execution and inferences. He is one of the few MD/PhD epidemiologists. He led a  group of 6000 physicians and epidemiologists that reviewed the science of COVID-19 

Leonard J. Backer has over 28 years of extensive and successful Seating, Tables and  Furniture Industry experience in all key areas. Mr. Backer has been directly involved in the design and development of 250+ seating and table collections. He specializes in Private Label Manufacturing, Sourcing, and Product Development expertise. Mr. Backer provides aggressive Expert Witness and Litigation Support services to attorneys, insurers and businesses for Plaintiff or Defense. He performs site inspections, detailed product reviews and incident analyses. He has worked with law firms and insurance companies to develop and coordinate strategies for various types of legal actions and lawsuits. Very strong hospitality background. Mr. Backer has extensive experience with hotel, restaurant, cruise ship, retail store and senior living incidents. Personal Injury and Product Liability Cases. He provides detailed analyses, written opinions, and expert witness reports for clients throughout the U.S. Strong proven deposition and court testimony. Areas of Expertise:

View Leonard Backer's Consulting Profile.

• BACKGROUND:

40+ years' experience including in product design, product development, and manufacturing in consumer, medical, and industrial product markets. Product innovation part-time academic since 2009, public speaker since 1985. Certified New Product Development Professional (NPDP) since 2008 by the Product Development and Management Association. Member of: Society of Plastics Engineers, Society of Manufacturing Engineers, American Society for Quality. Expert witness services to Product Liability, Intellectual Property, and Commercial Dispute litigators.

• PRODUCT LIABILTY EXPERTISE:

Retained by both plaintiff and defense counsel. Specialize in personal injury cases involving product defects, manufacturing defects, product safety, engineering design, mechanical failures, material failures, product quality assurance, and foreseeable misuse. 

• CASE EXAMPLES:

• Retained in cases involving 3M, Honeywell, Clorox, Ace Hardware, and others. 
• 3M Combat Arms earplug case, retained by two plaintiff firms. More at, https://bit.ly/Forbes-on-3M Daubert ruling at, https://bit.ly/EPR-3MEP-Daubert (Page 98). Two depositions. (Plaintiff) 
• Furniture review of the state of competitive product safety, mechanisms, warnings. Counsel represented major insurance company. Settled after report. (Defense) 
• N95 mask commercial dispute, settled after report. (Plaintiff) 
• Consumer electronics patent infringement, settled after report. (Defense) 

• MORE INFO AT:

Expert witness services offered can be seen at, https://bit.ly/PDEWS Preferred contact: eric@pinnaclepi.com

Content above is a selection of work, current case history available upon request. Expert witness testimonials at, https://bit.ly/EPR-EWT

• EXPERT WITNESS PODCAST INTERVIEW

Dr. J. P. Purswell, PhD, PE, CPE has extensive experience in Human Factors, Ergonomics, and Safety Engineering. He holds a doctorate in Industrial & Systems Engineering from Virginia Tech. He has taught Safety Engineering and Ergonomics in the Industrial Engineering Department at CSU-Pueblo since 1999. 

A member of the Human Factors and Ergonomics Society and the American Industrial Hygiene Association, Dr. Purswell also served as the Chair of the Industrial Engineers PE exam from 2005 to 2009. He continues to serve on the committee which is responsible for the preparation of the national professional engineering examination in industrial engineering. 

Dr. Purswell is the author of more than 20 publications and presentations on Product Safety, Occupational Safety, Printed Warnings, and Auditory Warnings. Examples of products addressed include silica, asbestos, cleaning chemicals, gasoline containers, and recreational equipment. Dr. Purswell maintains NIST-calibrated equipment for the measurement of light, sound, force, and whole-body and hand-arm vibration in addition to standard photo and video equipment. 

Litigation Support - An Expert Witness in the legal industry since 1997, Dr. Purswell has been qualified as an expert in state and federal courts across the nation in safety engineering, including safety analysis techniques such as Fault Tree Analysis and FMEA as well as product warnings / instructions and OSHA compliance issues. His services include site inspections, document review, drafting Rule 26-compliant reports, deposition, and trial testimony. He has been retained by attorneys for both Plaintiff (40%) and Defense (60%) more than 100 times, has been deposed more than 100 times, and has testified at trial over 20 times. 

Areas of Expertise:

View Dr. Purswell's Consulting Profile.

R. Kevin Smith P.E., D.F.E. has been a specialist in Engineering Forensic Safety and Design for 44 years. He has consulted on over 1,000 matters nationwide. Mr. Smith is a registered professional engineer and holds a BSME and MMAE from the Illinois Institute of Technology in Chicago. He is board certified forensic engineer through NAFE. He specialties include  Material Handling Equipment Safety, including lift trucks, dock safety, truck loading, conveyors, aerial work platforms, Construction Equipment Safety, Trucking Industry Safety including safe loading procedures and interactions at loading/unloading facilities, and Accident Reconstruction.

He is an active member of the committee that writes the Safety Standard for Low Lift and High Lift Trucks (ASME/ANSI B56.1) for over 40 years. He also serves on the B56.6 committee (rough terrain lift trucks) and the ANSI A92.5 and A92.6 subcommittees (self-propelled elevating work platforms), as well as the A92.20, A92.22, A92.22 series of ANSI standards for MEWPs (Mobile Elevating Work Platforms).

 Litigation Support - Mr. Smith formerly worked for Triodyne, Inc. for over 15 years as a forensic engineer/principal engineer. As President of R. K. Smith Engineering Inc., for 28 years, he currently has a laboratory for examination and testing, and owns or has access to varied testing equipment and tools.He has testified at depositions and trials on several hundred matters. Mr. Smith has performed hundreds of investigations into product failures involving injury and property damage, and has reconstructed numerous accidents. His expertise is available to counsel representing both Plaintiff and Defendant. Mr. Smith also was previously on the Adjunct Math faculty at Prairie State College for 13 years. 

Areas of Expertise:

View R. Kevin Smith's Consulting Profile.

Expert Background: Dr. Thomas L. Read is the Principal and CEO at A. Read Consulting, LLC. He received his PhD. from Stanford University in 1972 and has over 25 years of manufacturing experience in electronics, metallurgy, factory safety, failure analysis, glass fracture, glass failure and bottle failure. As a member of the electronics industry, he has earned process patents and has an extensive background in manufacturing techniques. In parallel, Dr. Read has spent over twenty five years as a consultant to attorneys and engineers. He has given more than 100 depositions and has appeared in court numerous times. Company Profile: Read Consulting, LLC is a full service laboratory providing services in the following areas:

• Failure Analysis; Factory Safety and Personal Injury (including machine guards and manufacturing safety)
• Glass Failure Analysis - Glass Fracture, Glass Failures and Bottle Failure
• Metal and Ceramic Failure
• Grinding Wheel Failures
• Intellectual Property and Patent Disputes
• Product Liability and Product Quality
• Manufacturing Disagreements (such as Intellectual Property, Failed equipment and Contract Disputes)
• Reverse Engineering

Since 1988, Real-World Forensic Engineering, LLC ("RWFE") has provided engineering services to industries and government labs, as well as litigation support to both plaintiff and defense attorneys practicing in many areas.

RWFE Areas of Expertise Include:

At RWFE, we proudly distinguish ourselves by our Four C's:

CREDENTIALS. COMPETENCE. CREDIBILITY. COMMUNICATION.

Design Evaluation – Accident Investigation – Intellectual Property - Failure Analysis – Fire Cause & Origin – Component Testing - Computer Aided Drafting – Accident Animation - Expert Witness & Litigation Support

www.ExpertEngineering.com

Consultants. Experts. Innovators.™

Operating from more than 110+ offices around the globe, we provide services to corporations, insurance companies, law firms, and government agencies.

Rimkus Life Sciences experts have a wealth of specialized expertise to help clients comprehend and improve how humans interact with their facilities, products, and systems.

Our experts offer significant professional experience related to studying and understanding human behavior and experience. Our experts have extensive knowledge involving but not limited to human health and medical devices, warnings and signage, perception and reaction, medicine and patient care, and health and sports activity.

The scientists, engineers, and researchers in Rimkus Life Sciences specialize in human based research to support product design and development, product validation, and development of instructions and warnings for use. Our experts work with clients across the globe in every major product sector. They understand how to leverage rigorous research and thoughtful analysis with creative problem solving to support the development of products.

Rimkus Global Services Overview

LIFE SCIENCE EXPERTISE

Biomedical Engineering

Human Factors

Legal Nurse Consulting

Product Safety

Sports Science Consulting

Toxicology Food Safety

View our full suite of Life Sciences Expert Services.

GLOBAL OFFICES

Rimkus operates from 110+ offices worldwide, with headquarters in the following cities.

View a full list of Rimkus Office Locations.

View Rimkus Quantum and Delay Expert Services Profile.
View Rimkus Forensic Expert Services Profile.

Christopher M. Daft, PhD, is an award winning, Oxford Educated scientist whose areas of expertise include medical imaging, artificial intelligence, semiconductors, medical devices, sensors, MEMS, signal processing, and image processing. He holds 23 United States Patents with 20 applications pending, Dr. Daft has diverse industry experience including multi-nationals such as GE, Medtronic, Fujifilm, Samsung, and Siemens as well as several start-ups. 

He has testified at trial 5 times and been deposed 15 times.

Dr. Daft has been an Institute of Electrical and Electronic Engineers (IEEE) Senior Member since 2004. He has three years of experience teaching electrical and computer engineering at the University of Illinois. 

Dr. Daft holds a BA and MA in Physics from Oxford University as well as Doctorate from Oxford in Materials Science.

Litigation Support - Dr. Daft provides litigation support in the areas of Intellectual Property and Medical Devices including Imaging, particularly Medical, Patents, and more. His experience includes a variety of cases in the areas of wearable electronics, imaging systems, and surgical technology. Dr. Daft has extensive deposition and trial testimony experience.

Areas of Expertise:

View Dr. Christopher Daft's Consulting Profile.

CPA, CFE, CPEA, CFF with 35 years of experience as a financial damages, accounting, royalties, licensing, valuation expert.  Calculations in general damages, intellectual property (copyright infringement, trademark infringement, patent infringement, DMCA, trade secrets), breach of contract, reasonable royalties, wrongful termination, personal injury, consumer product liability & royalty audits.  2017 California CPA of the Year & 2012 Certified Fraud Examiner of the Year. 

Expert in unjust enrichment & lost profits. Sample Industries: pharmaceuticals, medical devices, music, film, construction, machinery, security, toys, software, hardware, media, entertainment, energy, security, personal injury, partnerships, apparel & consumer products. Real world experience as Chief Audit Officer of Beats, KPMG Partner, and at Occidental Petroleum, Unocal, and Disney. While at Ernst & Young and KPMG, led national fraud and royalty auditing. Vice Chair ('16-'17) Board of Regents of the 80,000+ member Association of Certified Fraud Examiners. More than 3,000 forensic accounting contract investigations. 

Mr. Blum has extensive experience working on economic damages in both simple and multi-billion dollar complex litigations. With over 150 matters as an expert witness, his damage calculations have consistently been accepted in court, even in cases involving settlements up to $1 billion. His reports have been recognized as best examples by judges for their thoroughness and clarity. Mr. Blum has represented a broad range of clients, including leading law firms and major corporations across various industries. 

Clients: Microsoft, Dolby, Sony, Paramount Pictures, Mattel, Warner Bros., McDonald’s, Shark Tank, WWE, Steven Spielberg, Tom Hanks, Amgen, GM, Sears, IGT, IMG, Tessera, Philips, Diageo, Harley-Davidson, DKNY, Chrysler, Ross, UMB Bank, Bank of America, Everlast, Fate Thera., Medtronic.

Areas of Expertise:

View Sidney Blum's Consulting Profile.