Patent 8610573
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: Modulus Systems 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 8610573 as of the most recent data from the USPTO Open Data Portal. Web search also did not reveal any PTAB proceedings (Inter Partes Review, Post-Grant Review, or Covered Business Method) filed against this patent. This indicates that the patent has not been subjected to validity challenges before the Patent Trial and Appeal Board.
Strategic summary
As of the current date, no claims of US8610573 have been challenged or invalidated through AIA trial proceedings at the PTAB. Therefore, all claims (1-11) of the patent remain untested by these specific administrative processes.
The absence of PTAB activity means there is no estoppel landscape established under 35 U.S.C. § 315(e)(2). Consequently, potential defendants are not barred from raising any invalidity grounds (e.g., under §§ 102, 103, 112) in future PTAB petitions or district court litigation, should they choose to do so.
The litigation history for US8610573, as noted in the provided patent information, shows several cases filed in Texas district courts. The lack of corresponding PTAB challenges for a patent involved in litigation might suggest a strategic choice by defendants to pursue other avenues of invalidity challenge, or it could simply mean that any PTAB filings have not yet been publicly indexed or discovered through current searches.
Recommended next steps
Since no PTAB activity exists for US8610573, a defendant facing assertion of this patent has several options:
- Consider filing an IPR petition: Given the patent's active status and involvement in litigation, an IPR could be a viable strategy to challenge the patentability of the claims based on prior art. This would be particularly relevant if strong prior art references exist that were not considered during original prosecution.
- Prior Art Search: Conduct a thorough prior art search to identify potential grounds for an IPR or other invalidity defenses.
- Monitor for new filings: Keep an eye on the USPTO PTAB E2E system and public dockets for any newly filed IPR, PGR, or CBM petitions against US8610573 by other parties, as the outcome of such proceedings could impact defensive strategies.
Generated 5/31/2026, 6:45:45 PM