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Expertise Description

I have over 40 years experience in Product Design and Patents. My expertise is in Patent Infringement and/or Invalidity, Consumer Product Design and Liability, Cash Machines and Paper/Membrane Handling Devices, Telephone Head Sets and Small Scale Sonar Devices, Water Filtration, Drinking Fountains, & Misc Plumbing Products, Safety Showers and Eyewash Equipment, ANSI/ISEA Z358.1 American National Standard for Emergency Eyewash and Shower Equipment, Plumbing Fixtures and Valves, Medical Devices, Especially Medical Filters, Acoustics and Electro-Mechanical Devices, Photovoltaic Panels and Wind Turbine Components, Computer Peripherals, and Plastic Part Design and Application. Additionally, I am a former world class rock climber and general contractor, so I can offer testimonial on climbing accidents and job site safety. I have spent more than a decade providing consultations, deposition, and courtroom testimony as a product design and patents expert witness.

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Expert Witness

In approximately 22 cases, I have acted as an expert witness for patent infringement or product liability. So far, all but three of these cases were resolved pre-trial. In a 2008 patent infringement case that went to court, I was the key technical witness in a case where my client was awarded a substantial eight-figure judgment against the defendant, and in 2016 I was a key expert witness at a liability/injury trial where the plaintiff was awarded $1.8M in damages.

Professional Experiences

My professional experience includes being the owner and founder of my own engineering firm, which specializes in product development and machine design. We are specialists in the aesthetic, ergonomic, and functional design of plastic parts. We have provided innovative and creative solutions to client design and production problems. The firm has focused on product shape, form, and ergonomic development from conception to final detailed drawings.

Relevant Experiences

I have 40 years of molding experience with plastics, including injection molding, overmolding, electro-mechanical sub-assemblies with overmolding, transfer molding, RIM molding, epoxy molding, silicon molding, etc.

I have designed numerous consumer products over the course of my 40 year career as an engineer and product designer. Though I have never designed any air filters that went into commercial production, I have evaluated a variety of commercial air filters and submitted several preliminary air filter conceptual designs for a project. I have designed many sheet metal enclosures and parts for electronic products, as well as drinking fountains, safety showers and eye-washes. Also numerous plastic parts for a wide variety of products and housings.


Degree Subject Institution
B.S. Mechanical Engineering MIT

Licenses Certifications

Professional Engineer in the State of California
CA General Contractor License
HI General Contractor License