PTAB challenges

Proceedings overview

One Post-Grant Review (PGR) proceeding has been filed against US patent 12250452. The proceeding, PGR2025-00083, was denied institution, indicating that the patent has survived initial challenges and is hardened against this specific petitioner and their asserted grounds.

PGR2025-00083 — [[[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. Snapaid Ltd.

• Type: Post-Grant Review
• Filed: 2025-09-08
• Status: Discretionary Denial
• Judge panel: Not publicly available at this stage of the proceeding.
• Petition grounds: Not publicly available in the "PTAB proceedings on file" structured data for denial of institution.
• Institution decision: Denied. The petition for PGR2025-00083 was denied institution on 2026-03-11. The specific reasoning for the discretionary denial would be detailed in the institution decision itself, which is not provided in the prompt.
• Final Written Decision: Not applicable, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: Not applicable, as institution was denied.
• Defensive value: The patent owner successfully fended off this PGR challenge at the institution stage. This means that the asserted grounds were not deemed sufficient by the PTAB to proceed to a full trial. An IPR or PGR-based defense using the same or substantially similar grounds against this patent by Samsung Electronics Co., Ltd. et al. (or their privies) would be estopped.

Strategic summary

All claims of US patent 12250452 remain untested by any AIA trial proceeding, as the single PGR filed, PGR2025-00083, was denied institution. Therefore, no claims have been canceled or sustained through a PTAB final written decision.

Regarding estoppel, since PGR2025-00083 was denied institution, the petitioner, Samsung Electronics Co., Ltd. et al., and their privies would be estopped under 35 U.S.C. § 325(e)(1) from asserting in a district court proceeding or the ITC that the patent is invalid on any ground that was raised or reasonably could have been raised in the PGR petition. However, for other potential defendants, all prior-art grounds remain available.

There is no discernible pattern of multiple filings by the same petitioner or aggressive PTAB appeals by the patent owner yet, as only one proceeding has been filed, and it did not proceed to trial. Unified Patents is listed as a source for the PTAB data, but not as a petitioner in this specific proceeding.

Recommended next steps

Since institution for PGR2025-00083 was denied, there are no active trial-stage milestones to monitor. The denial means the patent remains intact from this specific challenge. If facing assertion of US12250452, a defendant would need to consider new prior art or different invalidity arguments not previously raised or that could not have been reasonably raised by Samsung Electronics Co., Ltd. et al. in PGR2025-00083. The institution decision for PGR2025-00083 (once publicly available via the USPTO PTAB E2E system) would be critical to understand the specific reasoning for the discretionary denial and inform future defensive strategies.