Executive Summary
The PTAB denied a Patent Owner's request for Director Review, instead remanding the IPR cases to allow discovery on complex real parties in interest (RPI) and privity issues related to concurrent district court litigation.
Related Cases
Dr. Falk Pharma GMBHvsEllodi Pharmaceuticals LP
Dr. Falk Pharma GmbH successfully petitioned to institute IPR against Ellodi Pharmaceuticals LP's patent (11,246,828) over orally disintegrating tablet claims. The Board found a reasonable likelihood of success based on prior art showing obviousness.
Microsoft CorporationvsSandpiper CDN, LLC
The Patent Trial and Appeal Board granted institution for IPR2026-00095, allowing Microsoft Corporation to challenge Sandpiper CDN's patent 8478903.
Ciena CorporationvsK.Mizra LLC
The PTAB granted institution for IPR2025-01364 after determining the petitioner had a reasonable likelihood of prevailing on at least one claim.
Meta Platforms, Inc.vsSitnet, LLC
The PTAB issued a Final Written Decision finding that the patent claims were unpatentable by a preponderance of the evidence. The Board found obviousness over single and combined prior art references (Gage/Mitchell) for original claims, and also determined substitute claims failed both 103 and 101 standards.
Mundra Solar PV Ltd. et al.vsTrina Solar Co. Ltd.
The PTAB issued a Final Written Decision finding that all 11 challenged claims of the solar cell patent were obvious over prior art references. The Board credited the petitioner's evidence, concluding that an ordinary artisan would have combined Chang and Jin to achieve the claimed isolation features with reasonable success.
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