District Court Indefiniteness Ruling Leads to Denial, PTAB Litigation Blog

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The PTAB exercised its discretion in Samsung Electronics Co., Ltd., v. Acorn Semi, LLC, IPR2020-01182, Paper 17 (Feb. 10, 2021) to deny inter partes review based on a district court finding the challenged claims indefinite.

On June 24, 2020, Samsung filed an IPR challenging claims 62-64, and 65 Acorn Semi LLC’s Patent No 7,084,423 (“the ’423 patent”) relating to a metal-semiconductor junction. The ’423 patent was being asserted in co-pending district court litigation Acorn Semi, LLC v. Samsung Electronics Co. Ltd., No. 2:19-cv-347 (E.D. Tex. 2019).

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