PTAB challenges

Proceedings overview

There is one AIA trial proceeding on file for US Patent 9762692, which has a status of "Institution Denied." This outcome means the patent has survived a challenge at the institution stage, giving it a hardened defensive posture against similar IPR-based challenges.

IPR2026-00174 — Microsoft Corporation v. Sandpiper Cdn LLC

• Type: Inter Partes Review
• Filed: 2025-12-17
• Status: Institution Denied (The PTAB declined to institute the review, meaning the trial did not proceed.)
• Judge panel: Information not publicly available at this time from the provided PTAB data.
• Petition grounds: Information regarding specific claims challenged, prior art, and statutory bases (§ 102 / § 103 / § 112) is not publicly available in the provided data or readily discoverable for a petition that was denied institution.
• Institution decision: Denied — 2026-05-26. The petition was denied institution, meaning the PTAB did not find a reasonable likelihood that the petitioner would prevail with respect to at least one claim challenged.
• Final Written Decision (if issued): Not applicable, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: Not applicable, as institution was denied and no final written decision was issued.
• Defensive value: The denial of institution for IPR2026-00174 indicates that the patent owner successfully defended the patent against this particular challenge, strengthening the patent's validity against the grounds raised by Microsoft Corporation. An IPR-based defense on the same or substantially similar grounds will face an uphill battle.

Strategic summary

All claims of US9762692 are currently SUSTAINED and UNTESTED at the merits stage of an AIA trial. While an IPR petition was filed by Microsoft Corporation, it was denied institution by the PTAB. This means that no claims of the patent have been canceled or found unpatentable in an AIA trial proceeding.

Estoppel landscape: Since the IPR was denied institution, the statutory estoppel provisions of 35 U.S.C. § 315(e)(2) do not apply. This means that Microsoft Corporation (and its privies) are not barred from raising any ground that they raised or reasonably could have raised in the IPR. However, the Board's reasoning for denying institution, though not publicly detailed here, likely provides insight into the weaknesses of the petitioner's arguments or prior art presented, which could discourage future challenges on similar grounds.

Pattern signals: Only one IPR has been filed on this patent, and it was denied institution. This suggests that as of now, the patent has successfully withstood an initial challenge. The current assignee is Sandpiper CDN LLC. Unified Patents is listed as a petitioner in a litigation context related to this patent family (IPR2026-00174 filed), indicating defensive aggregator interest, but the actual petitioner for IPR2026-00174 is Microsoft Corporation.

Recommended next steps

• For a defendant facing assertion of US9762692, it is important to review the PTAB's decision denying institution for IPR2026-00174. While the specific reasoning for the denial is not detailed in the provided data, understanding it would be crucial to assess the strength of the patent and identify potentially viable new (or different) prior art or arguments not previously considered by the PTAB.
• Given that the patent has survived its only IPR challenge at the institution stage, any new IPR petition would need to present a compelling case based on distinct prior art or novel arguments to overcome the Board's previous non-institution decision.## Proceedings overview
  There is one AIA trial proceeding on file for US Patent 9762692, which has a status of "Institution Denied." This outcome means the patent has survived a challenge at the institution stage, giving it a hardened defensive posture against similar IPR-based challenges.

IPR2026-00174 — Microsoft Corporation v. Sandpiper Cdn LLC

• Type: Inter Partes Review
• Filed: 2025-12-17
• Status: Institution Denied (The PTAB declined to institute the review, meaning the trial did not proceed.)
• Judge panel: Information not publicly available at this time.
• Petition grounds: Details regarding specific claims challenged, prior art, and statutory bases (§ 102 / § 103 / § 112) are not publicly available in the provided data or readily discoverable for a petition that was denied institution without a publicly available written decision document.
• Institution decision: Denied — 2026-05-26. The petition was denied institution, meaning the PTAB did not find a reasonable likelihood that the petitioner would prevail with respect to at least one claim challenged.
• Final Written Decision (if issued): Not applicable, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: Not applicable, as institution was denied and no final written decision was issued.
• Defensive value: The denial of institution for IPR2026-00174 indicates that the patent owner successfully defended the patent against this particular challenge, strengthening the patent's validity against the grounds raised by Microsoft Corporation. An IPR-based defense on the same or substantially similar grounds will face an uphill battle.

Strategic summary

All claims of US9762692 are currently SUSTAINED and UNTESTED at the merits stage of an AIA trial. While an IPR petition was filed by Microsoft Corporation, it was denied institution by the PTAB. This means that no claims of the patent have been canceled or found unpatentable in an AIA trial proceeding.

Estoppel landscape: Since the IPR was denied institution, the statutory estoppel provisions of 35 U.S.C. § 315(e)(2) do not apply. This means that Microsoft Corporation (and its privies) are not barred from raising any ground that they raised or reasonably could have raised in the IPR. However, the Board's reasoning for denying institution, though not publicly detailed here, likely provides insight into the weaknesses of the petitioner's arguments or prior art presented, which could discourage future challenges on similar grounds.

Pattern signals: Only one IPR has been filed on this patent, and it was denied institution. This suggests that as of now, the patent has successfully withstood an initial challenge. The current assignee is Sandpiper CDN LLC. Unified Patents is associated with a related litigation and IPR (IPR2026-00174 is listed as filed by Unified Patents in a litigation summary), but the petitioner for the IPR itself is Microsoft Corporation. This indicates some defensive aggregator interest, but the initial attempt to invalidate through IPR was unsuccessful.

Recommended next steps

• For a defendant facing assertion of US9762692, it is important to review the PTAB's decision denying institution for IPR2026-00174. While the specific reasoning for the denial is not detailed in the provided data, understanding it would be crucial to assess the strength of the patent and identify potentially viable new (or different) prior art or arguments not previously considered by the PTAB.
• Given that the patent has survived its only IPR challenge at the institution stage, any new IPR petition would need to present a compelling case based on distinct prior art or novel arguments to overcome the Board's previous non-institution decision.