PTAB challenges

Proceedings overview

One Post-Grant Review (PGR) proceeding, PGR2025-00060, has been filed against US patent 12321184. The proceeding's status is "Discretionary Denial", indicating that institution was denied by the PTAB. This means the patent has successfully survived a PGR challenge, giving the patent owner a hardened position against this specific petitioner.

PGR2025-00060 — TankLogix, LLC v. Sitepro Inc

• Type: Post-Grant Review
• Filed: 2025-07-10
• Status: Discretionary Denial. The PTAB declined to institute the PGR, meaning the petition was not advanced to a full trial on the merits.
• Judge panel: The specific judge panel for the discretionary denial is not publicly available in the provided information. However, recent USPTO procedures indicate that decisions on discretionary denial involve the Director of the USPTO in consultation with at least three PTAB judges.
• Petition grounds: The information does not explicitly state the specific claims challenged or the prior art and statutory bases (§ 102 / § 103 / § 112) asserted in the petition. However, a "Sotera Stipulation" by the petitioner indicates that grounds raised or reasonably capable of being raised under §§ 102 or 103 based on prior art patents or printed publications would not be pursued in parallel litigation if the PTAB instituted the review.
• Institution decision: Denied on 2025-11-20. The institution was denied based on discretionary considerations. This decision was made by the Director of the USPTO in consultation with a panel of at least three PTAB judges, as per interim processes for PTAB workload management.
• Final Written Decision: Not applicable, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: The information does not indicate an appeal of the discretionary denial. Institution decisions are generally considered final and non-appealable.
• Defensive value: The discretionary denial of PGR2025-00060 means that all claims of US12321184 that were challenged in this petition remain intact. For a defendant, this signifies that the specific prior art and arguments presented by TankLogix, LLC in this PGR cannot be used against the patent by TankLogix, LLC or its privies in future proceedings due to estoppel. However, other parties not privy to this PGR may still challenge the patent on different grounds or even the same grounds if the prior art presented differs.

Strategic summary

All claims of US12321184 are currently sustained and untested by a full PTAB trial. The single PGR filed against this patent, PGR2025-00060, resulted in a discretionary denial of institution, meaning the PTAB did not proceed to a full review of the challenged claims' patentability. This outcome strengthens the patent owner's position as it indicates the PTAB found reasons, likely procedural, to not initiate a trial.

Regarding the estoppel landscape, TankLogix, LLC (the petitioner in PGR2025-00060) and its privies are estopped from asserting invalidity grounds that were raised or reasonably could have been raised in the PGR. This estoppel primarily applies to challenges under 35 U.S.C. §§ 102 and 103 based on prior art patents or printed publications, as indicated by the petitioner's Sotera stipulation. However, any other potential defendant not in privity with TankLogix, LLC would not be estopped and could still challenge the patent on any available grounds, including those that might have been presented in PGR2025-00060.

The discretionary denial suggests a pattern where the patent owner, Sitepro Inc., has successfully navigated a PTAB challenge, at least at the institution phase. There is a parallel district court litigation, SitePro, Inc. v. TankLogix, LLC, in the Western District of Texas (case numbers 6:24-cv-00642 and 7:2025cv00266), which likely influenced the discretionary denial. PTAB often considers parallel litigation when making discretionary institution decisions.

Recommended next steps

For a defendant currently facing assertion of this patent, it is important to note that all claims of US12321184 remain patentable as far as PTAB proceedings are concerned. The discretionary denial means the claims were not actually evaluated on their merits by the PTAB.

Since institution was denied, there is no Final Written Decision to link to.

No active proceedings are currently pending against US12321184 in the PTAB. The absence of further PTAB challenges after the discretionary denial of PGR2025-00060 could be a signal that potential petitioners view the patent as robust or that the grounds available for challenge are not strong enough to warrant a petition, especially considering the parallel district court litigation.