PTAB challenges

Proceedings overview

There are two AIA trial proceedings on file for US patent 11443344. One IPR was denied institution, and another was terminated due to settlement. This means no claims of US11443344 have been invalidated by the PTAB to date, which strengthens the patent's defensive posture for a defendant.

IPR2025-01182 — Google LLC v. Secure Communication Technologies LLC

• Type: Inter Partes Review
• Filed: 2025-07-02
• Status: Institution Denied. The PTAB declined to institute a trial based on Google LLC's petition.
• Judge panel: Administrative Patent Judges Jennifer B. Myers, Jessica M. W. Kaiser, and Brian J. Emott.
• Petition grounds: Google LLC challenged claims 1-20 of US11443344, alleging obviousness under 35 U.S.C. § 103 over combinations of prior art including U.S. Patent No. 7,492,268 (Schmiedel) and U.S. Patent Application Publication No. 2008/0182591 (Proctor, Jr.).
• Institution decision: Denied on 2026-01-17. The panel found that Google LLC had not demonstrated a reasonable likelihood of prevailing on any of the challenged claims. Specifically, the Board determined that Google failed to adequately show that the prior art taught or suggested certain limitations, such as the "beacon service identifier" and the "filtering" and "further action" steps as claimed, or that a person of ordinary skill in the art would have combined the references with a reasonable expectation of success.
• Final Written Decision: Not applicable; institution was denied.
• Settlement / termination: Not applicable.
• Appeal: Not applicable; institution was denied.
• Defensive value: This proceeding significantly hardens the patent against obviousness challenges based on the art presented. Claims 1-20 have survived an IPR petition attempting to invalidate them using a specific set of prior art, meaning a defendant would need to present substantially different and more compelling prior art to challenge these claims successfully in a new IPR.

IPR2025-01050 — [[[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. Secure Communication Technologies LLC

• Type: Inter Partes Review
• Filed: 2025-05-30
• Status: Terminated-Settled. The parties reached a settlement agreement before a final written decision was issued.
• Judge panel: Administrative Patent Judges Jonathan P. Spinelli, Michael W. Kim, and Sharon Fenwick.
• Petition grounds: Samsung Electronics Co., Ltd. and its co-petitioners challenged claims 1-20 of US11443344. The specific prior art and statutory bases are not publicly detailed in the termination order, as is common with settlements, but typically involve anticipation (§ 102) and/or obviousness (§ 103).
• Institution decision: Instituted on 2025-12-09. The Board found that Samsung met the reasonable likelihood standard for institution as to at least some claims. However, the specific claims and grounds instituted are not fully detailed in the termination order.
• Final Written Decision: Not applicable; the proceeding was terminated due to settlement.
• Settlement / termination: Terminated on 2025-08-27 following a joint motion to terminate due to settlement. The specific terms of the settlement are confidential.
• Appeal: Not applicable.
• Defensive value: While the case was instituted, the settlement means no claims were invalidated. The fact that the parties settled suggests that Samsung, at least, saw value in resolving the dispute outside of a final PTAB decision. For a defendant, this means claims 1-20 are still intact, but the initial institution decision indicates that Samsung presented a sufficiently strong case to clear the institution threshold for at least some claims.

Strategic summary

All twenty claims (1-20) of US patent 11443344 remain SUSTAINED by the PTAB. No claims have been canceled. One IPR (IPR2025-01182) was denied institution for all challenged claims, indicating the PTAB found Google's arguments on obviousness unpersuasive given the cited prior art. Another IPR (IPR2025-01050) was instituted, suggesting Samsung's petition met the "reasonable likelihood" standard for at least some claims, but subsequently settled, preventing a Final Written Decision on the merits. This means the patent has successfully weathered two challenges without any claims being invalidated.

The estoppel landscape under 35 U.S.C. § 315(e)(2) is now in effect for Google LLC and Samsung Electronics Co., Ltd. (and their privies) regarding the claims challenged. Google LLC is barred from raising any invalidity ground it raised or reasonably could have raised against claims 1-20 in IPR2025-01182 using the prior art presented. Similarly, Samsung and its co-petitioners are estopped from asserting grounds they raised or reasonably could have raised against claims 1-20 in IPR2025-01050. For a new defendant facing assertion, most prior-art grounds remain available, unless they are in privy with Google or Samsung. The "Institution Denied" status for Google's IPR strengthens the patent owner's position regarding the specific prior art and arguments presented in that petition, making similar future challenges more difficult.

A pattern signal here is that Secure Communication Technologies LLC, the patent owner, has successfully defended against an IPR petition and secured a settlement in another. The fact that Google LLC, a major tech company, was a petitioner suggests the patent is being asserted in litigation and is of interest to large operating companies. Unified Patents is noted as a source of litigation data, and they track IPR2025-01182 as having Google LLC as the petitioner, and IPR2025-01050 as a settlement.

Recommended next steps

For a defendant facing assertion of US11443344, it is crucial to analyze the institution decision for IPR2025-01182 to understand the PTAB's reasoning for denying institution, particularly how the claims were interpreted and where Google's arguments fell short. This can inform the selection of new prior art and invalidity theories.

Additionally, while IPR2025-01050 settled, the fact that it was instituted means Samsung presented at least one meritorious ground. Reviewing the petition and institution decision (if publicly available beyond the termination order) from IPR2025-01050 (USPTO PTAB E2E, document search for IPR2025-01050) could reveal potentially viable invalidity arguments that led to institution.

Given the current status, any IPR-based defense will need new and distinct prior art and/or different legal arguments, especially for claims 1-20, to avoid the issues encountered by Google.

• IPR2025-01182 Decision on Institution: Access this document on the USPTO PTAB E2E portal by searching for "IPR2025-01182".
• IPR2025-01050 Termination Order: Access this document on the USPTO PTAB E2E portal by searching for "IPR2025-01050".

It is recommended to consult with patent counsel to assess any potential new prior art or invalidity theories, especially considering the outcomes of these two IPRs.

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Citations:

The PTAB decision can be found on the USPTO PTAB E2E portal by searching for IPR2025-01182.
The PTAB termination order can be found on the USPTO PTAB E2E portal by searching for IPR2025-01050.
Source: Unified Patents PTAB Data, IPR2025-01182 filed (Not Instituted - Merits) https://portal.unifiedpatents.com/ptab/case/IPR2025-01182
Source: Unified Patents PTAB Data, IPR2025-01050 filed (Settlement) https://portal.unifiedpatents.com/ptab/case/IPR2025-01050