Patent US20180240021A1
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
The USPTO Open Data Portal indicates no AIA trial proceedings on file for US Patent US20180240021A1 or its granted counterpart, US11087221B2. This means that, as of the most recent data ingest, there are no active, concluded, or settled Inter Partes Review (IPR), Post-Grant Review (PGR), or Covered Business Method (CBM) proceedings against this patent. For a defendant, this means the patent's claims remain untested by PTAB challenges.
Strategic summary
As of May 29, 2026, all claims of US20180240021A1 remain UNTESTED by any AIA trial proceedings before the PTAB. There are no claims that have been canceled or sustained in such proceedings.
Since no AIA trials have been initiated, there is no estoppel landscape under 35 U.S.C. § 315(e)(2). Therefore, a potential defendant is not barred from raising any prior art grounds they deem relevant in a future PTAB challenge or district court litigation.
The absence of PTAB activity can be a mixed signal. On one hand, it could suggest that the patent has not yet been widely asserted, or that prior art challenges have not been identified by potential infringers. On the other hand, well-asserted patents often eventually attract IPRs. The lack of challenges might simply mean the patent has not been subjected to significant scrutiny.
Recommended next steps
If facing an assertion of US20180240021A1, a defendant should:
- Conduct a thorough prior art search, building upon the initial prior art identified during prosecution, to identify the strongest invalidity arguments.
- Evaluate the merits of filing an IPR petition, considering the claims' scope and the available prior art, as the patent's claims are currently untested.
- Monitor for any newly filed PTAB petitions against this patent, which would be publicly available through the USPTO's PTAB search tools.
Generated 5/29/2026, 9:05:10 PM