Patent 9961097
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: Portus Singapore PTE Ltd & Portus Pty Ltd
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 15, 2026, a comprehensive search for America Invents Act (AIA) trial proceedings related to U.S. Patent 9,961,097 reveals no PTAB activity on file. The USPTO Open Data Portal (ODP) API indicates no records, and supplemental web searches for Inter Partes Review (IPR), Post-Grant Review (PGR), or Covered Business Method (CBM) proceedings for this patent did not yield any results.
This means all claims of US 9,961,097 remain untested by PTAB proceedings. For a defendant facing assertion of this patent, this indicates that the patent has not been subjected to the scrutiny of an IPR, PGR, or CBM trial, and thus its claims have not been challenged or narrowed by the PTAB.
Recommended next steps
Since there is no PTAB activity on file for US Patent 9,961,097, a defendant being asserted against this patent has the full range of PTAB trial options (IPR, PGR, or CBM, if applicable) available to them, provided statutory and regulatory requirements are met. The absence of PTAB challenges for a patent that has been involved in litigation (as indicated in the "Litigation History" section) could be a signal that either the patent owner has consistently settled cases before PTAB filings, or potential petitioners have not yet identified strong grounds for invalidity that meet the institution thresholds.
For a defendant, the immediate next steps would involve a thorough prior art search to identify potential invalidity grounds for an IPR or PGR petition, considering the patent's priority date of December 17, 1998. Analyzing the cited prior art (e.g., U.S. Patent 5,850,520; U.S. Patent 6,144,998; U.S. Patent 6,292,834) and searching for additional art would be critical.
Generated 5/15/2026, 7:02:13 AM