Patent 6199048
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.
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 is no PTAB activity on file for US Patent 6,199,048.
Strategic summary
There are no PTAB proceedings on file for US Patent 6,199,048. This means that all 95 claims of the patent remain untested by the AIA trial process.
Given the patent's expiration on October 3, 2015, and the successful ex parte reexamination in 2008 where the USPTO issued a final rejection of all 95 claims, the absence of AIA trial proceedings (which became available in 2012) is expected. The reexamination decision likely made further PTAB challenges unnecessary or redundant for potential defendants, as the patent was effectively invalidated.
Recommended next steps
If facing an assertion of US Patent 6,199,048 today, a defendant should primarily rely on the outcome of the ex parte reexamination, which resulted in the final rejection of all claims in July 2008. This reexamination decision, rather than an AIA trial, is the most critical event impacting the patent's validity.
Generated 5/30/2026, 12:47:27 AM