PTAB challenges

Proceedings overview

There is one AIA trial proceeding on file for US patent 11875275, which is currently active and in the "Pending" status. This means the patent's claims are still undergoing review by the PTAB, and no final decision has been rendered, so its defensive posture is currently uncertain.

IPR2026-00263 — SAGEMCOM BROADBAND SAS v. Cisco Technology Inc.

• Type: Inter Partes Review
• Filed: 2026-02-20
• Status: Pending – The petition has been filed and is awaiting a decision on institution by the PTAB.
• Judge panel: Not yet public, as the institution decision has not been issued.
• Petition grounds: Details of the challenged claims, specific prior art, and statutory bases (§ 102 / § 103 / § 112) are not publicly available at this early stage without reviewing the petition itself.
• Institution decision: Not yet issued. The statutory deadline for the PTAB to decide whether to institute the IPR is typically within six months of the petition's filing date, which would be around August 20, 2026.
• Final Written Decision: Not issued, as the proceeding is still in the pre-institution phase.
• Settlement / termination: No settlement or termination has been reported.
• Appeal: No appeal has occurred, as no Final Written Decision has been issued.
• Defensive value: This IPR is in its initial stages. While its outcome is uncertain, the existence of an active IPR means that the validity of the patent's claims is currently being challenged. A defendant facing assertion of this patent should closely monitor this proceeding, as a successful IPR could invalidate some or all of the asserted claims.

Strategic summary

The validity of US patent 11875275 is currently under challenge in a single Inter Partes Review, IPR2026-00263, filed by SAGEMCOM BROADBAND SAS. As the proceeding is still in the pre-institution phase, all claims of the patent are currently UNTESTED by the PTAB. There are no claims that have been canceled or sustained through an AIA trial. The Patent Owner is Cisco Technology Inc..

Given the early stage of IPR2026-00263, the estoppel landscape is not yet defined. If the IPR is instituted and proceeds to a Final Written Decision, the petitioner (and its privies) would be estopped from asserting grounds raised or that reasonably could have been raised in the IPR concerning any claims found unpatentable. However, for other potential defendants, the full range of prior-art grounds remains available until an institution decision is made and any claims are ultimately adjudicated. There are no apparent patterns of multiple IPR filings by the same petitioner on this specific patent, nor any signals regarding aggressive appeals by the patent owner or involvement of defensive aggregators like Unified Patents based on the current information for this patent.

Recommended next steps

• Monitor IPR2026-00263 closely: The key upcoming milestone is the institution decision, expected around August 20, 2026. This decision will determine whether the PTAB will proceed with a full review of the challenged claims. Access to the petition and any preliminary responses filed would provide insight into the specific claims challenged, the prior art asserted, and the arguments presented by both parties.
• If you are a defendant, obtain and review the petition in IPR2026-00263 to understand the specific prior art and arguments being used to challenge the patent. This information can inform your own invalidity contentions if you are involved in co-pending litigation.
• If the IPR is instituted, continue to track the trial schedule, including any upcoming oral hearings and the expected Final Written Decision due date (typically one year from institution).
• Search for "IPR2026-00263" directly on the USPTO PTAB E2E (or its successor P-TACTS) portal for access to public documents, including the petition, preliminary response, and ultimately the institution decision.