PTAB challenges

Proceedings overview

One AIA trial proceeding has been filed against US Patent 8,116,749. This proceeding, IPR2026-00099, resulted in a discretionary denial of institution, suggesting that the claims remain untested by PTAB on the merits. This outcome provides a relatively strong defensive posture for a patent owner, as the claims have not been invalidated by the PTAB.

IPR2026-00099 — Google LLC v. Secure Communication Technologies, LLC

• Type: Inter Partes Review
• Filed: 2026-01-09
• Status: Discretionary Denial. The PTAB declined to institute the review.
• Judge panel: Lead Judge Jennifer Meyer Chagnon, Administrative Patent Judge Brian J. McNamara, and Administrative Patent Judge Michael P. Tierney.
• Petition grounds: Google LLC challenged claims 1-20 of U.S. Patent No. 8,116,749 as unpatentable under 35 U.S.C. § 103(a) as obvious over various combinations of prior art, including US 2008/0182591 A1 (Silverman), US 2007/0009090 A1 (Kurosaki), US 2006/0064505 A1 (Tysowski), and WO 2004/004381 A1 (Morgan).
• Institution decision: Denied on 2026-05-15. The panel exercised its discretion to deny institution under 35 U.S.C. § 314(a) based on the factors outlined in Fintiv, specifically considering the advanced stage of parallel district court litigation involving the same patent. The Board found that a district court trial was scheduled before the PTAB's final written decision statutory deadline, and other Fintiv factors favored denial.
• Final Written Decision: Not issued, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: No appeal of a Final Written Decision, as none was issued.
• Defensive value: The discretionary denial means the PTAB did not reach the merits of the patentability challenges. Therefore, the claims of US 8,116,749 remain intact from a PTAB perspective, and an IPR-based defense on the specific grounds raised in this petition would be more challenging, as Google was denied institution. The Fintiv denial suggests that any ongoing district court litigation for this patent is relatively advanced.

Strategic summary

Currently, all claims (1-20) of US 8,116,749 are SUSTAINED by the PTAB, as the sole Inter Partes Review proceeding, IPR2026-00099, resulted in a discretionary denial of institution rather than a merits-based decision. This means no claims have been canceled through PTAB proceedings, and the patent owner's claims remain UNTESTED on the merits by the PTAB.

The estoppel landscape is relatively favorable for the patent owner. Since IPR2026-00099 was discretionarily denied and no final written decision on the merits was issued, 35 U.S.C. § 315(e)(2) estoppel, which bars petitioners and their privies from raising grounds they raised or reasonably could have raised, does not apply to the merits of the challenged claims. Petitioners are not estopped from raising these grounds in district court or other proceedings, as the PTAB did not make a final validity determination. However, Google LLC (and its privies) may be estopped from filing another IPR petition challenging the same claims on the same grounds or substantially the same grounds that were denied institution, particularly if the Fintiv factors continue to weigh against institution in a subsequent petition. This is a common pattern for defensive aggregators like Unified Patents, who were noted as petitioners in other IPRs related to this patent family, although Google LLC was the petitioner in IPR2026-00099.

Recommended next steps

For a defendant currently being asserted against, the discretionary denial of IPR2026-00099 indicates that the claims of US 8,116,749 have not been weakened by PTAB challenges. Defendants should be aware that the PTAB declined to institute based on Fintiv factors related to parallel district court litigation. This implies that district court proceedings for this patent may be advanced.

• Review the institution decision for IPR2026-00099 to understand the specific reasoning behind the Fintiv denial. This can be found on the USPTO PTAB E2E system.
  • Google LLC v. Secure Communication Technologies, LLC, IPR2026-00099, Paper 11 (PTAB May 15, 2026).
• Investigate the status and schedule of the parallel district court litigation mentioned in the Fintiv decision, as this likely impacted the PTAB's decision. The provided "Litigation summary" lists pending cases in Texas Western District Court (1:25-cv-01579) and Florida Middle District Court (6:19-cv-01886, 6:18-cv-00064) that could be relevant.
• While an IPR on the same grounds might face similar Fintiv challenges, exploring alternative prior art or arguments not presented in IPR2026-00099, or considering a Post-Grant Review (if eligible), could be viable strategies if the patent is still within the PGR window.