From Judge Jennifer Choe-Groves (Ct. of Int'l Trade) Thursday in Disruptive Resources, LLC v. Ballistic Barrier Prods. Inc. (D. Del.):
Before the Court is an action involving claims of patent infringement between Plaintiff Disruptive Resources … and Defendants Ballistic Barrier Products Inc. and Mayday Security Solutions LLC …. After Plaintiff's counsel disclosed to the Court that the previously filed Joint Claim Construction Brief … featured multiple errors due to his use of generative artificial intelligence ("AI"), the Court ordered counsel to show cause in writing as to why the Court should not impose sanctions for counsel's conduct pursuant to Federal Rule of Civil Procedure 11 ….
In counsel's letter to the Court, counsel described the events that led to his disclosure of inaccuracies attributable to generative AI. Portions of counsel's reply brief in support of Plaintiff's claim constructions "included an erroneously proposed construction that deviated from the construction of the terms Plaintiff had advanced through the claim construction process[.]"
Counsel stated that he used the AI system "Strongsuit" to generate an initial outline of Plaintiff's reply brief and to pull statements from a deposition that supported Plaintiff's position on claim construction. Counsel used directed prompts to complete an initial draft of the reply brief that integrated extrinsic evidence mentioned in the deposition.
When editing the draft, counsel "jumped from section to section" and mistakenly "believed [he] had edited the entire brief, when in reality, [he] had missed the 1-page section" that proposed an incorrect construction. Counsel admits that he failed to conduct a final review of the entire brief and "overlooked some of the arguments being made."
Upon discovering the erroneous statements in the brief, counsel notified opposing counsel and proposed amending the Joint Brief to implement footnotes to address the erroneous proposed constructions. The Parties later filed a [Joint Letter] disclosing these issues to the Court. Counsel argues that his actions did not violate Rule 11 or any rules of professional conduct because the reply brief was not presented for an improper purpose, the claims and legal contentions were supported by authentic existing law, and all factual contentions were supported by evidenceCounsel suggests that his errors were "more akin to taking litigation positions that are ultimately borne out to not be adopted by the Court."

