PTAB challenges

Proceedings overview

There is currently one active AIA trial proceeding challenging US Patent 10904487. This proceeding is in the early stages, with the petition having been filed very recently. For a defendant, this indicates that the patent has not yet been thoroughly tested in PTAB proceedings, and its claims are currently untested.

IPR2026-00407 — Zoom Communications, Inc. v. Ricoh Co Ltd

• Type: Inter Partes Review
• Filed: 2026-07-01
• Status: Pending. The petition was filed on July 1, 2026, and is currently undergoing preliminary review by the PTAB.
• Judge panel: Information regarding the assigned judge panel is not yet publicly available at this early stage of the proceeding.
• Petition grounds: Specific details regarding the claims challenged, prior art asserted, and statutory bases (§ 102 / § 103 / § 112) are typically contained within the petition itself, which is under review. This information is not yet publicly disclosed in a summary format.
• Institution decision: Not yet issued. The PTAB has a statutory deadline to issue an institution decision.
• Final Written Decision: Not applicable, as an institution decision has not yet been issued.
• Settlement / termination: Not applicable at this early stage.
• Appeal: Not applicable.
• Defensive value: This proceeding indicates that at least one party (Zoom Communications, Inc.) believes there are valid grounds to challenge the patent. However, as it's in the very early stages, it doesn't yet provide a definitive outcome regarding the patentability of the claims. For a defendant, this IPR represents a potential avenue for invalidating claims, but no conclusions can be drawn at this time.

Strategic summary

All claims (1-20) of US10904487 are currently UNTESTED by any final PTAB decision. The single Inter Partes Review, IPR2026-00407, was filed very recently and is in its preliminary stages, meaning no claims have been canceled or sustained by the PTAB.

Regarding estoppel, since IPR2026-00407 has not yet reached an institution decision or a Final Written Decision, no estoppel effects under 35 U.S.C. § 315(e)(2) are in play. Therefore, for a defendant currently facing assertion of this patent, all prior-art grounds remain available for challenge, subject to the statutory requirements for filing new IPR petitions (e.g., timing windows).

The filing of IPR2026-00407 by Zoom Communications, Inc. suggests that the patent is gaining attention from potential implementers or parties in the industry. The involvement of a major player like Zoom could signal a perceived threat from the patent and indicates a willingness to challenge its validity. No pattern of multiple IPRs from the same petitioner or aggressive PTAB appeals by the patent owner is evident yet, given this is the first and only proceeding.

Recommended next steps

As IPR2026-00407 is an active, pending proceeding, the next key milestone will be the institution decision. The PTAB typically has six months from the filing date of the petition to decide whether to institute the IPR. This means a decision on institution for IPR2026-00407 is anticipated around early January 2027. Monitoring this decision will be crucial, as institution would indicate the PTAB believes there's a reasonable likelihood that at least one claim is unpatentable, opening the door for potential invalidation.

Further details, including the specific claims challenged and prior art asserted, will become publicly available if the IPR is instituted. These documents can be accessed via the USPTO PTAB E2E system by searching for IPR2026-00407.