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Why attorneys choose Barr Group

  • Hands-on engineering depth. Our experts have designed and tested real products, so they can explain a failure mode or a design choice in plain language.
  • Courtroom-ready. We field experts who testify for plaintiffs and defendants and whose opinions withstand Daubert scrutiny.
  • One call, the whole bench. Barr Group brokers experts across every technical field, so a single conversation can cover a multidisciplinary case.
  • No cost to you. Our search, consultation, and recommendation are always free and confidential.

Litigation we support

Areas of expertise we cover

Our materials and engineering experts span the mechanical, optical, and energy technologies most often at issue in these matters:

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Materials & Engineering Expert Witness List

The following is a representative subset of Barr Group's experts who have experience designing and/or testifying about these technologies:

Expert S163S

Barr Group's hydraulic fracturing expert witness has more than 40 years of petroleum engineering experience and has testified before a state oil and gas…

Expert M600S

Barr Group's human factors and usability engineering expert witness has 44 years of experience in graphical user interface design and product ergonomics and has…

Expert M520X

Barr Group's GPU-based parallel algorithms expert witness has over 30 years of academic and research experience in collision detection and real-time simulation…

Expert E452S

Barr Group's semiconductor packaging expert witness has over 40 years of experience in flip chip bumping, wafer-level packaging, and solder-based interconnect…

Expert M262S

Barr Group's fiber optic communications expert witness has over 20 years of experience in connector design and optical telecommunications systems, including…

Expert C565N

Barr Group's power-aware high-performance computing expert witness has over two decades of experience in energy-efficient supercomputing, computing systems…

Expert O256R

Barr Group's electronics cooling and thermal design expert witness has roughly 30 years of independent thermal engineering consulting experience spanning heat…

Expert O632K

Barr Group's electronics cooling and thermal management expert witness has over 38 years of research experience in mini-channel and micro-channel cooling, two…

Expert H256R

Barr Group's polymer membrane expert witness has over two decades of experience in ion transport properties, membrane materials, and electrochemical energy…

Expert K350M

Barr Group's e-cigarette and vaporizer design expert witness has over three decades of consumer electronics and mechanical engineering experience, holds 35+…