PTAB challenges

Proceedings overview

There is one active AIA trial proceeding on US Patent 10,664,141. The patent is currently facing a challenge, so its defensive posture is uncertain as the outcome of the IPR is pending.

IPR2026-00248 — Meta Platforms, Inc. v. Paul Erich Keel et al

• Type: Inter Partes Review
• Filed: 2026-03-18
• Status: Pending - This IPR is currently active and has not yet reached a final decision.
• Judge panel: Not yet public.
• Petition grounds: Not yet public.
• Institution decision: Not yet available. The institution decision deadline is 2026-09-18.
• Final Written Decision (if issued): Not yet issued.
• Settlement / termination: Not applicable, as the proceeding is pending.
• Appeal: Not applicable, as no Final Written Decision has been issued.
• Defensive value: This proceeding indicates that at least some claims of US10664141 are being challenged by Meta Platforms, Inc. The outcome of this IPR will significantly impact the patent's strength and the viability of any infringement assertions.

Strategic summary

Currently, the claims of US10664141 are untested by any concluded PTAB proceedings. The patent is subject to an active Inter Partes Review, IPR2026-00248, initiated by Meta Platforms, Inc. As this is the sole PTAB proceeding on file, the full scope of challenged claims and the specific prior art grounds are not yet public. Therefore, it is premature to definitively state which claims are canceled, sustained, or untested.

Regarding the estoppel landscape, since IPR2026-00248 is still pending, no estoppel has yet attached under 35 U.S.C. § 315(e)(2). Once a final written decision is issued, Meta Platforms, Inc. and its privies would be estopped from asserting invalidity grounds that were raised or reasonably could have been raised in the IPR. For other potential defendants, all prior-art grounds remain available until a Final Written Decision is issued. The involvement of Meta Platforms, Inc. as a petitioner suggests a significant interest in challenging the patent, which could be a signal of future challenges or licensing demands.

Recommended next steps

The IPR2026-00248 proceeding is active, and the institution decision deadline is 2026-09-18. If the IPR is instituted, the Final Written Decision is typically due one year from the institution date. We will need to monitor the USPTO PTAB E2E system for updates on the institution decision and subsequent trial-stage milestones.