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Expert Witness Venues and Clients

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Barr Group’s experts provide technical consulting and testifying expert witness services for product liability, patent infringement, and software copyright and trade secret litigation filed in various federal and state courts in the United States as well as courts in Canada and other countries. 

Electronics and software litigation cases supported by Barr Group testifying software experts have ranged from individual copyright and patent infringement actions to large class-action lawsuits that have resulted in billions of dollars in settlement compensation.

Need a testifying expert witness? Contact us >

Expert Witness Courts and Venues

Barr Group has provided testifying experts for more than two hundred cases in all major litigation venues, including:

  • United States District Courts
  • U.S. International Trade Commission (ITC)
  • U.S. Patent and Trademark Office (USPTO)
  • Patent Trial and Appeal Board (PTAB)
  • United States Bankruptcy Courts
  • Superior Court of the State of Arizona
  • Superior Courts of California
  • Circuit Court of Michigan
  • New York State Supreme Court
  • District Court of Oklahoma
  • Federal Court of Canada
  • Superior Court of Québec

Find a seasoned expert witness now >

Representative Law Firm Clients

Barr Group's testifying experts have worked with dozens of law firms, including:

  • Bailey & Glasser
  • Baker Botts
  • Baker Hostetler
  • Ball & Bonholtzer
  • Blank Rome
  • Bragalone Olejko Saad
  • Bryan Cave
  • Bailey Javins & Carter
  • Barnes & Thornburg
  • Cohen Milstein
  • Conley Griggs
  • Covington & Burling
  • Crowell & Moring
  • Cunningham Bounds
  • Curtis and Lucero Law Firm
  • Dechert
  • Dentons
  • Devlin Law Firm
  • DiCello Levitt
  • ​Drinker Biddle
  • ​Etheridge Law Group
  • ​Farella Braun + Martell
  • Fish & Richardson
  • Foley & Lardner
  • Fox Rothschild
  • Grant & Eisenhofer
  • Gutride Safier
  • Hagens Berman
  • Haynes and Boone
  • Heim Payne & Chorush
  • Hilgers Graben
  • Hinckley Allen
  • Irell & Manella
  • Jenner & Block
  • Jones Day
  • Kasowitz Benson Torres
  • Karish & Bjorgum
  • Keller Rohrback
  • King & Spalding
  • Kirkland & Ellis
  • Kirton McConkie
  • Koskoff
  • Kramer Levin
  • Latham & Watkins
  • Lieff Cabraser
  • Manatt Phelps & Phillips
  • Marshall Gerstein & Borun
  • Matheny Sears
  • McAndrews
  • McCarthy Tétrault
  • ​McCune Wright
  • ​McKool Smith
  • Morrison & Foerster
  • ​Nelson Bumgardner Conroy
  • Nixon Peabody
  • O’Melveny & Myers
  • One Law Group
  • Orrick
  • Polsinelli
  • Prince Lobel Tye
  • Quarles & Brady
  • ​Quinn Emanuel
  • Ray Quinney & Nebeker
  • Robinson Calcagnie
  • Robinson+Cole
  • ​Rochon Genova
  • Ropes & Gray
  • Saul Ewing
  • Sheppard Mullin
  • Sidley Austin
  • SpencePC
  • Stanley Law Group
  • ​Sterne Kessler
  • Susman Godfrey
  • Weil Gotshal
  • Wigington Rumley Dunn & Ritch​
  • ​Winston & Strawn

Over half of our expert witness business comes from repeat clients and their direct referrals to other lawyers and firms.

How can we help you today? >

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Expert Services

  • Expert Reports by Testifying Software Experts
  • Software Source Code Review and Analysis
  • Reverse Engineering and Forensic Analysis
  • Consulting Experts in Software and Electronics

Matters and Venues

  • Patent Infringement and Invalidity Experts
  • Software Copyright and Trade Secrets Experts
  • Product Liability and Failure Analysis Experts
  • Contract Disputes and Software Project Failures
  • Venues and Clients

Areas of Expertise

Artificial Intelligence
Automotive Systems
Cloud Computing
Computer Security
Consumer Electronics
Electronic Circuits
Enterprise Software
Financial Technology
Firmware and IoT
Industrial Controls
Mechanical Design
Medical Devices
Military & Aerospace
Mobile Devices & Apps
Optical Equipment
Renewable Energy
Signal Processing
Telecommunications
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