Patent 11515528
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.
Active provider: Google · gemini-2.5-flash
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
There are no AIA trial proceedings on file for US Patent 11515528.
Strategic summary
As of the current date, US Patent 11515528 has no history of AIA trial proceedings at the PTAB. This means all claims of the patent remain untested in an IPR, PGR, or CBM setting, and there are no canceled or sustained claims to report from such proceedings. Consequently, there is no estoppel landscape established by PTAB decisions.
The absence of PTAB activity could imply several things. It might suggest that the patent has not yet been asserted aggressively in a way that would provoke an AIA challenge, or that potential challengers have not identified strong prior art grounds for an IPR, PGR, or CBM.
Recommended next steps
There are no active or concluded PTAB proceedings to monitor. If facing an assertion of US Patent 11515528, a potential defendant would have a full range of prior art grounds available for an AIA trial petition, should they choose to pursue that route. The absence of prior PTAB challenges means there's no established record of claim construction or patentability arguments from the PTAB to consider, which could be both an opportunity and a challenge for a new petitioner.
Generated 6/19/2026, 12:02:09 PM