Patent 8385284
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: Optis Wireless Technology 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
There are no AIA trial proceedings on file for US Patent 8,385,284 as of the most recent ingest from the USPTO ODP API. A web search did not surface any additional PTAB activity. This means the patent has not been subjected to IPR, PGR, or CBM trials, and all claims remain untested by these specific post-grant challenges. This gives a defendant no immediate defensive advantage from PTAB invalidations, suggesting the patent is unhardened in this regard.
Strategic summary
All claims of US Patent 8,385,284 are currently UNTESTED by AIA trial proceedings. This means there are no canceled or sustained claims as a result of IPR, PGR, or CBM. Consequently, the estoppel provisions of 35 U.S.C. § 315(e)(2) do not apply, leaving all prior-art grounds fully available for any potential defendant. The absence of PTAB activity suggests that the patent has not yet been subjected to this specific form of post-grant challenge, or any such challenges have not been publicly recorded or indexed. The patent is currently assigned to Optis Wireless Technology LLC, which has been active in asserting this patent in district court litigation.
Recommended next steps
As there is no PTAB activity on file for US Patent 8,385,284, the recommended next step for a potential defendant facing assertion of this patent would be to consider filing an IPR petition if relevant prior art can be identified. This would be a first attempt to challenge the patentability of the claims before the PTAB.
Generated 5/29/2026, 8:54:09 PM