Patent 7154961
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: Althearidge LLC
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 does not list any AIA trial proceedings for US patent 7154961 as of the most recent ingest. Therefore, there are no active, invalidated, sustained, settled, or institution-denied PTAB proceedings on file. This indicates that the patent's claims have not been challenged via IPR, PGR, or CBM trials at the PTAB.
Strategic summary
As of today's date, the claims of US 7154961 have not been tested or challenged through any AIA trial proceedings at the Patent Trial and Appeal Board (PTAB). This means all claims (Claims 1-11) of the patent remain untested by these particular post-grant review mechanisms. There is no estoppel landscape from PTAB decisions to consider, as no petitions have been filed or instituted.
The absence of PTAB activity is a notable signal. Given the patent's expiration in October 2022 and the extensive litigation history (as noted in the Patent Summary and Litigation Summary), it is unusual for a frequently asserted patent to have no record of AIA trial proceedings, especially IPRs, which are common defensive tools against asserted patents. This could indicate several possibilities, such as: the patent owner consistently settling cases before an IPR could be instituted, defendants choosing other invalidity avenues, or the patent's claims being considered less susceptible to IPR challenges based on their specific scope and the available prior art.
Recommended next steps
Since there are no PTAB proceedings on file for US 7154961, there are no institution decisions, final written decisions, or appeal statuses to track from the PTAB. If a defendant is currently being asserted against, the absence of PTAB challenges means that all prior-art grounds remain potentially available for a new IPR petition, subject to the statutory deadlines for filing such petitions.
Given the patent's expiration, any new IPR would primarily serve to potentially invalidate claims for the purpose of challenging past damages, rather than preventing future infringement. However, the lack of PTAB hardening also means that if a strong prior art argument exists, a new IPR could be an effective strategy to invalidate the claims.
Generated 5/30/2026, 12:47:36 AM