Patent 11516643
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.
Current assignee: Cedarwood Ventures, Inc.
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 May 31, 2026, there are no AIA trial proceedings on file for US patent 11,516,643 according to the USPTO ODP API. This indicates that the patent has not yet faced any inter partes review (IPR), post-grant review (PGR), or covered business method (CBM) challenges. This defensive posture means that all claims of the patent are currently untested by PTAB proceedings.
Strategic summary
Currently, all claims of US patent 11,516,643 (claims 1-19) are untested by PTAB proceedings. This means there are no canceled or sustained claims from IPR, PGR, or CBM challenges. Therefore, no estoppel has been established against any potential petitioner under § 315(e)(2), leaving all prior-art grounds available for future challenges. The absence of PTAB activity suggests that the patent owner has not yet faced a direct challenge to the patentability of these claims before the USPTO's Patent Trial and Appeal Board.
Recommended next steps
There is no PTAB activity on file for US patent 11,516,643. If a defendant is facing assertion of this patent, they have the full range of PTAB trial options available, including IPR, PGR (if eligible), or CBM (if eligible), to challenge the patent's validity.
Generated 5/31/2026, 6:46:34 AM