News and Insights

Legal 500 United States Recognizes Jenner & Block in 24 National Practice Categories and Names 90 Lawyers among Its Leading Lawyers, Next Generation Partners, and Hall Of Famers

The 2021 edition of The Legal 500 United States recognizes Jenner & Block in 24 national practice categories. Of those, the firm received a Tier-1 ranking in the Copyright, Native American Law, and Telecoms and Broadcast (Regulatory) categories....READ MORE

A Recent Federal Circuit Decision Has Clouded the District Court’s Gatekeeping Role

The Federal Circuit’s recent decision in Barry v. DePuy Synthes Companies reversed a trial court’s exclusion of two expert witnesses, further blurring the line for practitioners between the court’s gatekeeping role and the jury’s role in assessing the weight of the evidence and the credibility of witnesses. The Barry decision split the court 2–1, with Judge Stark authoring the majority opinion and Judge Prost dissenting....READ MORE

The Federal Circuit Expands Disclaimer of Patent Scope During Prosecution

The Federal Circuit Court of Appeals’ recent decision in Focus Products Group International, LLC v. Kartri Sales Co., Inc., No. 2023-1446 (Fed. Cir. Sept. 30, 2025) reversed summary judgment of infringement on two patents and vacated on a third. The Court held the district court erred in both claim construction and application of its infringement analysis by failing to properly find the patent file history disavowed subject matter relied upon to find infringement. The disavowal was critical beca...READ MORE

Two Federal Circuit Decisions Nullify Nine-Figure Damages Awards

In two June 2025 decisions, the Federal Circuit Court of Appeals rejected patent infringement jury verdicts for $218.5 million and $300 million—one reversed for claiming patent ineligible subject matter, and the other vacated due to an improper question on the jury verdict form for infringement....READ MORE