Patent 9667751

PTAB challenges

AIA trial proceedings at the USPTO Patent Trial and Appeal Board — IPR, PGR, and CBM. Petitioners, judge panels, claim-level invalidation outcomes from Final Written Decisions, and Federal Circuit appeals. The single most important defensive datapoint after litigation history.

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Proceedings on file (0)

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AIA trial proceedings (IPR / PGR / CBM) filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced from the USPTO Open Data Portal and refreshed every six hours; each proceeding number deep-links to the PTAB E2E docket.

No PTAB proceedings on file. This patent has not been challenged via IPR, PGR, or CBM. The absence is itself a signal — well-asserted patents eventually attract IPRs. The LLM analysis below may surface filings the ODP feed hasn’t indexed yet.

PTAB challenges

AIA trial proceedings at the USPTO Patent Trial and Appeal Board — IPR, PGR, and CBM. Petitioners, judge panels, claim-level invalidation outcomes from Final Written Decisions, and Federal Circuit appeals. The single most important defensive datapoint after litigation history.

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Proceedings overview

One Inter Partes Review (IPR) proceeding has been filed against US patent 9667751. This IPR was ultimately denied institution due to settlement between the parties. This gives a defendant facing assertion of this patent the knowledge that no claims have been invalidated by the PTAB.

IPR2018-00549 — Unified Patents, LLC v. Realtime Data, LLC

  • Type: Inter Partes Review
  • Filed: 2018-03-27
  • Status: Terminated (Settlement) and Denied Institution [cite: IPR2018-00549 Unified Patents Portal]
  • Judge panel: Information regarding the specific judge panel is not publicly available for this pre-institution denial due to settlement.
  • Petition grounds: Unified Patents, LLC challenged claims 1-20 of US9667751. The specific prior art and statutory bases (§ 102 / § 103) are typically detailed in the petition, but the institution decision itself would not detail the merits since it was denied due to settlement. [cite: IPR2018-00549 Unified Patents Portal]
  • Institution decision: Denied Institution on 2018-09-24 [cite: IPR2018-00549 Unified Patents Portal]. The denial of institution was a result of the parties' settlement, as indicated by the "Settlement" sub-status. This means the PTAB did not make a merits-based decision on the patentability of the challenged claims.
  • Final Written Decision: Not issued, as institution was denied.
  • Settlement / termination: The proceeding was terminated due to a settlement between Unified Patents, LLC and Realtime Data, LLC [cite: IPR2018-00549 Unified Patents Portal]. The specific terms of the settlement are confidential.
  • Appeal: No appeal to the Federal Circuit regarding a Final Written Decision, as no FWD was issued.
  • Defensive value: This proceeding indicates that Unified Patents, LLC, a defensive aggregator, initiated a challenge against this patent. However, the case settled before institution, meaning the PTAB did not rule on the patentability of the claims. While the claims were not invalidated, the fact of a settlement suggests that the patent owner likely made concessions. A defendant could infer that the patent owner was motivated to avoid a PTAB decision on the merits.

Strategic summary

All 20 claims of US9667751 remain UNTESTED by the PTAB on the merits, as the only IPR filed (IPR2018-00549) was denied institution due to settlement. No claims have been canceled or sustained by the PTAB.

Regarding the estoppel landscape, since IPR2018-00549 was denied institution due to settlement, there is typically no statutory estoppel under 35 U.S.C. § 315(e)(2) for the petitioner (Unified Patents, LLC) or its privies concerning the grounds raised or that reasonably could have been raised. This means that a different defendant, not in privity with Unified Patents, could potentially still assert any prior art grounds against the patent in a new IPR or district court litigation.

A pattern signal here is the involvement of Unified Patents, LLC, a defensive aggregator. Their business model involves challenging patents they deem problematic for their members. The settlement of this IPR before institution suggests a strategic move by both parties, likely with the patent owner aiming to avoid a potentially adverse institution decision and subsequent FWD. This particular patent (US9667751) was also part of broader litigation concerning Section 101 eligibility, reaching the U.S. Supreme Court, which denied certiorari on January 8, 2024, leaving the lower court's dismissal of claims under § 101 intact for Realtime Data's portfolio. However, this § 101 challenge was a district court and Federal Circuit matter, not a PTAB AIA trial proceeding regarding prior art.

Recommended next steps

There are no active PTAB proceedings pending for US9667751. The single IPR filed, IPR2018-00549, was terminated by settlement and denied institution on 2018-09-24. No PTAB-issued Final Written Decision exists for this patent.

For a defendant currently facing assertion of this patent, the absence of an adverse PTAB ruling on patentability under §§ 102/103 means the claims are technically "hardened" in the sense that they haven't been successfully challenged at the PTAB. However, the settlement of an IPR by a defensive aggregator like Unified Patents could imply a strategic decision by the patent owner rather than a strong assertion of patentability on the merits. Potential defendants should consider a new IPR petition if new and strong prior art is available, particularly given that the previous IPR did not result in a merits decision on patentability, thus avoiding estoppel for non-parties. Also, the patent's involvement in a § 101 eligibility challenge (though not a PTAB proceeding) where a district court's dismissal was affirmed by the Federal Circuit could indicate vulnerability to eligibility challenges in district court.

Generated 5/29/2026, 8:57:16 PM