Patent US6098106
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
There are no known AIA trial proceedings (Inter Partes Review, Post-Grant Review, or Covered Business Method review) on file for US Patent US6098106 as of today's date, 2026-05-30. This includes information from the USPTO Open Data Portal (ODP) API and recent web searches for PTAB activity. This means the patent has not been subjected to challenges at the Patent Trial and Appeal Board (PTAB).
Strategic Summary
As there are no PTAB proceedings on file for US6098106, all claims of the patent are considered UNTESTED in the context of AIA trial proceedings. The patent expired on September 11, 2018, so its enforceability is no longer a concern.
Since no PTAB proceedings were ever instituted, there is no estoppel landscape to consider under 35 U.S.C. § 315(e)(2) for this patent. Potential prior art grounds, such as those discussed in the "Prior Art" and "Obviousness" sections of this analysis, were never adjudicated by the PTAB.
The absence of any PTAB activity throughout the patent's term and since its expiration is a significant signal. Well-asserted patents often become targets for IPRs or other AIA trials, particularly if they are litigated. The lack of such challenges suggests that either the patent was not widely asserted in infringement actions, or that any assertions did not lead to defensive PTAB petitions. The patent was assigned to Digital Convergence.com Inc. and later to RPX Corporation, a defensive patent aggregator, which might explain the absence of offensive assertions leading to PTAB challenges by defendants.
Recommended Next Steps
Since US Patent US6098106 is expired and has no known PTAB activity, there are no active proceedings or upcoming milestones for a defendant to monitor. If a defendant were to receive a demand letter citing this patent (which is unlikely given its expired status), any infringement theory based on this patent would be moot due to its expiration on September 11, 2018. The primary defense would be the patent's expired status.
Generated 5/30/2026, 12:46:27 AM