PTAB challenges

Proceedings overview

A single AIA trial proceeding, IPR2025-01605, was filed against US Patent 10,797,783. This IPR was denied institution, leaving all claims of the patent untested and in their original form. This indicates a hardened patent, as an IPR-based defense will be more challenging.

IPR2025-01605 — [[[Samsung Electronics Co.](/litigations/by-defendant/Samsung%20Electronics%20Co.), Ltd.](/litigations/by-plaintiff/Samsung%20Electronics%20Co.%2C%20Ltd.) et al.](/litigations/by-plaintiff/Samsung%20Electronics%20Co.%2C%20Ltd.%20et%20al.) v. Massively Broadband LLC

• Type: Inter Partes Review
• Filed: 2025-10-14
• Status: Discretionary Denial
• Judge panel: Not publicly available in the provided information.
• Petition grounds: Not publicly available in the provided information.
• Institution decision: Denied (on 2026-02-03, based on the termination date of 2026-02-03 from the previous section). The specific reasoning for the discretionary denial is not available in the provided patent text or the PTAB proceedings on file snippet, but a discretionary denial means the PTAB chose not to institute the review for reasons other than the merits of the prior art presented.
• Final Written Decision (if issued): Not applicable, as institution was denied.
• Settlement / termination: Terminated on 2026-02-03.
• Appeal: Not applicable, as institution was denied.
• Defensive value: The denial of institution means all claims of US10797783 remain intact and were not challenged on the merits by this IPR. Consequently, any infringement theory built on these claims is currently unaffected by this PTAB proceeding. An IPR-based defense against this patent would need to present new, compelling prior art arguments or overcome the grounds for discretionary denial that led to the outcome of IPR2025-01605.

Strategic summary

All claims of US10797783 remain untested by the PTAB, as the single filed IPR, IPR2025-01605, was denied institution. This means that all claims are currently sustained in their original form.

Regarding estoppel, since IPR2025-01605 was denied institution, statutory estoppel under 35 U.S.C. § 315(e)(2) for the petitioner (Samsung Electronics Co., Ltd. et al.) would typically not apply as no claims were advanced to a final written decision. However, the exact scope of estoppel can sometimes be debated even with discretionary denials, depending on the specific reasoning for the denial. For a new defendant facing assertion of this patent, prior-art grounds are still largely available, assuming they are not in privity with Samsung.

The filing of only one IPR, which resulted in a discretionary denial, suggests that the patent owner (Massively Broadband LLC) has so far successfully defended the patent at the institution stage. There is no indication of aggressive PTAB appeals by the patent owner, as no Final Written Decision was issued. The petitioner in this instance was Samsung, a large operating company, rather than a defensive aggregator.

Recommended next steps

If you are a defendant facing assertion of this patent, it is crucial to understand the specific reasons for the discretionary denial in IPR2025-01605, as this information is not fully available in the provided context. A thorough review of the PTAB's decision for IPR2025-01605 would be necessary to understand if the denial was based on procedural issues, arguments related to claim construction, or other factors that could inform a future PTAB challenge.

There are currently no active proceedings pending against US10797783. The absence of additional PTAB activity following the denial of institution for IPR2025-01605 could suggest challenges in identifying strong prior art or navigating the PTAB's discretionary denial standards for this patent.