Precedential: Time-Barred Copycat Petitions Only In Exceptional Circumstances, PTAB Litigation Blog
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The PTAB’s recently designated precedential decision in Realtek Semiconductor Corp., v. ParkerVision, Inc., Nos. IPR2025-00324 and IPR2025-00325, Paper No. 11 (June 25, 2025), makes clear that an otherwise time-barred petition will be allowed to join a pending instituted PTAB proceeding “only in exceptional circumstances.” In this case, Petitioners Texas Instruments and NXP (via copycat petition) had challenged a patent owned by ParkerVision, and the PTAB had instituted review on December 19, 2024. See IPR2024-00935.
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