On Tuesday, November 5, the Federal Circuit voted 6-4 to deny a request for en banc rehearing in Fresenius vs. Baxter. The court decision in July held that “cancellation of a patent on re-examination can wipe out an infringement judgment.” Finnegan partner James R. Barney told Law360 “The en banc court split dramatically and the dissent uses language flagging this as an important constitutional issue,” he said. “It has all the ingredients to have as a good a chance as any of being taken up by the Supreme Court.”
Barney also said, “What makes this case stand out is the degree to which the district court decision is perceived to be final,” where even a final court decision that the patent is valid and infringed is not final enough. He noted interesting implications in light of new America Invents Act proceedings, adding, “This is a very important case for the bar because of the new post-grant review procedures that are in place and that new emphasis by Congress and the PTO on using those procedures. Patent litigation is high stakes and litigants look for any opportunity to press their advantage.”
Commentary
May 20, 2026
Award/Ranking
Finnegan Partner Antje Brambrink Shortlisted for Women in Business Law EMEA Award
May 13, 2026
Press Release
Finnegan Secures Decisive ITC Victory for Innoscience in Final Determination
May 11, 2026
Award/Ranking
Associates Rank Finnegan “Best of the Best” in BTI Associate Satisfaction Survey
May 7, 2026
Announcement
Finnegan Partner Ningling Wang Becomes President of Licensing Executives Society International
May 4, 2026
Press Release
Finnegan Enhances Its German and European IP Practice with Björn Kalbfus
April 30, 2026
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