precise and technical,
Real Impact.

Mathew Sommers
Lighting Patent Expert Witness | Automotive Lighting Consultant | Technical Litigation Support

Mathew Sommers is an engineering consultant and expert witness specializing in automotive lighting systems, optical design, LEDs, electronics, product development, and patent litigation involving lighting-related technologies.

Through Sommers Engineering LLC, Mathew provides technical analysis, expert reports, rebuttal opinions, deposition support, and litigation consulting for matters involving patent infringement, non-infringement, invalidity, prior art, product design, and manufacturing issues.

His experience includes the design, development, testing, and commercialization of vehicle lighting systems, including headlamps, tail lamps, signal lamps, marker lamps, CHMSLs, optical lenses, reflectors, light guides, LED systems, housings, seals, electronics, and related mechanical components.

Mathew helps legal teams evaluate complex lighting technologies and present engineering opinions in a clear, supportable, and litigation-ready manner. His work often involves analyzing patent claims, reviewing accused products, preparing claim charts, evaluating prior art, inspecting physical components, interpreting technical drawings and specifications, and explaining the engineering principles behind optical performance, photometry, color, visibility, manufacturability, and regulatory considerations.

With a background grounded in real-world automotive lighting development and technical problem solving, Mathew offers clients a practical and disciplined perspective on how lighting products are designed, manufactured, tested, and compared in the context of patent and technical disputes.