Services:
Dr. Harrison provides consulting and testifying expert witness services in civil and criminal cases involving mechanical and electromechanical device technologies, such as data storage devices and firearm functionality, design alternatives, and safety.
Expert witness services pertaining to mechanical and electromechanical device technologies include:
- Patent infringement and invalidity analysis and related technical opinions
- Mechanical and product design alternative assessments
- Firearms unintended discharge or malfunction analysis
- Expert testimony for patent infringement and product liability cases
Dr. Harrison provides expert analysis and testimony in cases involving allegations of patent infringement, defective product design, manufacturing defects, and misuse or failure of mechanical devices such as firearms and firearm-related accessories. He conducts inspections, measurements, and testing (e.g., operational testing, drop safety testing, performance testing) to form reliable expert opinions. His analysis often includes comparisons to applicable industry standards such as SAAMI, MIL-STD, NIJ, and state-specific firearm regulations.
For example, his areas of firearms technology expertise include:
Handguns – Revolvers, semi-auto pistols, airguns
Rifles – Modern sporting rifles, bullpup designs, bolt action, semi-auto, lever action
Shotguns – Break action, pump action, semi-auto
Holsters – Duty holsters, concealment holsters (IWB, OWB, shoulder, pocket, kydex, leather, fabric)
Firearm Accessories – Magazines, loaders, weapon-mounted lights, suppressors, braces
Gun Subcomponents & Aftermarket Modifications – Triggers, sights, stocks
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Qualifications:
Dr. Joshua C. Harrison, PhD, JD, is a mechanical engineering expert witness and firearms technology expert witness specializing in patent infringement and product liability cases, consulting, and opinions. His qualifications include:
Ph.D., M.Sc., Mechanical Engineering, UCSD
B.Sc., Mechanical Engineering, USC
J.D., Stanford Law School
Licensed Attorney – California Bar
Admitted to U.S. Patent and Trademark Office, multiple federal courts
Licensed firearms instructor, range officer, and former shooting competitor.
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Experience:
Dr. Harrison has many years of professional experience in industry, the US military, and academia related to mechanical engineering, firearms technology, and intellectual property law. He has worked extensively with structural dynamics, mechanical failures, and forensic testing methodologies. Dr. Harrison’s technical expertise spans mechancial and electromechanical devices such as data storage devices, firearms technology and operation, tribology, and mechanical failure analysis.
In addition to his engineering expertise, Dr. Harrison is a patent attorney with a J.D. from Stanford Law School, with decades of experience in intellectual property disputes, including patent infringement cases related to mechanical and electromechanical devices, firearms, and firearms accessories, and intellectual property disputes pertaining to Amazon product listings. He has substantial testifying experience including being deposed as an expert witness, as well as taking and defending the depositions of other expert witnesses.
Dr. Harrison has lifelong experience in firearms technology and hands-on expertise in firearm operation and training. He enlisted in the U.S. Marine Corps light infantry at 17 and later served as a commissioned officer in the U.S. Army Reserve for over two decades. He is a licensed shooting instructor and range safety officer, with a competitive background in marksmanship and practical shooting.
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Categories:
Causation and Avoidance , Firearms , Guns , Patent Litigation , Engineering Mechanical , Patent Validity/Invalidity , Mechanical Failure , Acoustics and Noise
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