Expert Witness | Barr Group

Articles about intellectual property litigation and technical expert witnesses.

Automotive Software and Functional Safety in Litigation: What ISO 26262 Does and Does Not Prove

Note: This article offers practical guidance for attorneys engaging technical experts. It is general commentary, not legal advice. Consult counsel about any specific matter.

Semiconductor and Chip-Design Patent Disputes: What the Expert Must Prove

By Michael Barr

Note: This article offers practical guidance for attorneys engaging technical experts. It is general commentary, not legal advice. Consult counsel about any specific matter.

How to Enforce the BARR-C Coding Standard Automatically: clang Tools, CI, and AI Assistants

By Michael Barr

Note: This article offers practical commentary for attorneys and engineers. It is general commentary, not legal advice. Consult counsel about any specific matter.

The Technology Tutorial That Wins the Markman: A Litigator's Guide to Teaching the Judge Before Claim Construction

By Michael Barr

Note: This article offers practical guidance for attorneys engaging technical experts. It is general commentary, not legal advice. Consult counsel about any specific matter.

Reverse Engineering as Evidence: A Litigator's Guide to When It Is Allowed and How It Holds Up

By Michael Barr

Note: This article offers practical guidance for attorneys and technologists working with reverse engineering in litigation. It is general commentary, not legal advice. The legality of any particular reverse engineering effort turns on the facts, the jurisdiction, and the governing agreements. Consult counsel about any specific matter.

One Patent, Three Forums: A Litigator's Guide to Choosing a Technical Expert for the ITC, the PTAB, and District Court

By Michael Barr

Note: This article offers practical guidance for attorneys engaging technical experts. It is general commentary, not legal advice. Consult counsel about any specific matter.

Trade Secret Misappropriation in Software: What the Code Can Prove

By Michael Barr

Note: All information about specific litigation discussed in this article is drawn exclusively from publicly available court opinions, SEC filings, and published news reports.

Are AI Prompts Discoverable? A Federal Ruling and the Expert Work-Product Question

By Michael Barr

Note: This article discusses a court decision based solely on publicly available reports and court filings. It is general commentary for technologists and litigators, not legal advice. Whether to use any AI tool on a given matter is a decision for counsel. Consult counsel about any specific situation.

Toyota Unintended Acceleration: What the Software Really Did

By Michael Barr

Note: This article summarizes a public regulatory and court record. It is general commentary for engineers and litigators, not legal advice.

To Err Is Human, To Err at Scale Is AI

A human who makes a mistake makes it once. They fat-finger one wire transfer, send one email to the wrong person, delete one file. Then they notice, they wince, and they stop. Our whole intuition for risk is built on that pace: one mistake, one human, one moment, with a chance to catch it.