Patent 11967921
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)
All PTAB activity →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.
Proceedings overview
As of 2026-06-03, there are no AIA trial proceedings (Inter Partes Review, Post-Grant Review, or Covered Business Method review) on file for US Patent 11967921. This means the patent has not been challenged at the Patent Trial and Appeal Board (PTAB) through these mechanisms.
Strategic summary
Currently, all claims of US Patent 11967921 remain untested at the PTAB. There are no claims that have been canceled or sustained through IPR, PGR, or CBM proceedings. Consequently, the estoppel provisions of 35 U.S.C. § 315(e)(2) do not apply, meaning all prior art grounds are theoretically available for a potential future challenger at the PTAB or in district court. The absence of PTAB challenges for a patent granted on 2024-04-23 could signal various things: it might not have been widely asserted yet, potential challengers might not have found strong prior art, or strategic reasons might be at play.
Recommended next steps
Since there is no PTAB activity on US Patent 11967921, any potential defendant facing assertion of this patent would have all statutory grounds for challenging patentability available to them. This includes the option to file an Inter Partes Review (IPR) petition if relevant prior art, such as patents or printed publications, can be identified that raises a reasonable likelihood of invalidating one or more claims under 35 U.S.C. §§ 102 or 103. The absence of previous challenges means there is no estoppel to consider regarding prior art grounds.
A thorough prior art search would be the crucial first step to evaluate the viability of an IPR challenge. The filing date of the underlying application (2022-08-09) and the priority date (2014-12-22) would define the relevant prior art window for any potential challenge.
PTAB proceedings on file
The USPTO ODP API returns no AIA trial proceedings for this patent as of the most recent ingest.
Generated 6/3/2026, 12:45:50 PM