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Director Terminates IPRs for Sotera Violations and the District Court Strikes Invalidity Contentions, PTAB Litigation Blog

September 18, 2026 Blog

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On May 12, 2026, the Director of the United States Patent and Trademark Office (“USPTO”), John Squires, granted a patent owner’s motion to terminate three related inter partes reviews (“IPRs”) based on the petitioner’s violation of its Sotera stipulation. IPR2025-00223, Paper 29; IPR2025-00478, Paper 32; IPR2025-00486, Paper 34.[1] On September 14, 2026, the Northern District of California followed suit, striking the invalidity contentions that violated the Sotera stipulation. Concurrent Ventures, LLC v. Advanced Micro Devices, Inc., No. 4:25-cv-09567-JST (N.D. Cal. Sept. 14, 2026) (“District Court Order”). These decisions reflect the USPTO’s and the federal courts’ continued willingness to enforce Sotera stipulations.

 

Read the full article at ptablitigationblog.com.

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