Short Summary
In IPR2020‑01207, the PTAB held that Samsung’s challenger proved that 11 of the 14 asserted claims of the ’395 patent are anticipated by the prior‑art Grupp ’483 reference, rendering them unpatentable, while three claims remained patent‑eligible.
Detailed Summary
The Patent Trial and Appeal Board issued a Final Written Decision in IPR2020‑01207 concerning U.S. Patent No. 10,090,395 B2, which covers a process for depinning the Fermi level at metal‑semiconductor junctions. Samsung Electronics (petitioner) challenged claims 1‑6, 8‑12, and 14‑16. The Board found that the prior‑art Grupp ’483 reference anticipates the limitations of claims 1‑6, 8‑10, 15, and 16 under 35 U.S.C. §102(b), making those claims unpatentable. The petitioner could not establish lack of written description or enablement for claims 11, 12, and 14, so those claims were upheld. The Board also construed “specific contact resistivity” and “specific contact resistance” as interchangeable. The motion to exclude the patent owner’s expert testimony was dismissed as moot.
Practitioner Note
This case demonstrates the evidentiary and procedural standards applied in patent matters before local courts. Understanding the court's reasoning in GLOBALFOUNDRIES Inc. et al. vs OAK IP LLC is valuable context for structuring arguments or assessing risk in similar proceedings.
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