PTAB challenges

The initial check of the "PTAB proceedings on file" section explicitly states that the USPTO ODP API returns no AIA trial proceedings for US8271315. My web searches for "US8271315 IPR", "US8271315 PTAB", "US8271315 inter partes review", "US8271315 post-grant review", and "US8271315 covered business method" also did not yield any specific PTAB proceedings (IPR, PGR, or CBM) directly associated with this patent number. The search results provided general information about IPR, PGR, and CBM processes, but no case numbers or details for US8271315.

Therefore, I can confidently state that there are no PTAB proceedings on file for US8271315 based on the provided authoritative information and my web search.

Proceedings overview

There are no AIA trial proceedings on file for US Patent 8271315. This indicates that the patent has not been challenged through Inter Partes Review (IPR), Post-Grant Review (PGR), or Covered Business Method (CBM) review at the Patent Trial and Appeal Board (PTAB). For a defendant, this means the claims of the patent remain untested by these administrative processes, and there is no PTAB decision on their validity.

Strategic summary

As of May 19, 2026, all claims (Claims 1-17) of US8271315 remain untested by PTAB proceedings. No claims have been canceled or sustained through IPR, PGR, or CBM. The absence of PTAB activity means there is no estoppel landscape established under § 315(e)(2) for potential petitioners, as no grounds were raised or could have been raised in an instituted trial.

The lack of PTAB proceedings suggests that the patent has not yet faced the scrutiny common for patents actively asserted in litigation. This could be due to various reasons, such as the patent owner's enforcement strategy, the nature of the claimed invention, or the timing of the assertions relative to the availability of AIA trials. Given the recent litigation filings in February 2024, it is possible that defendants in those cases may consider filing PTAB petitions as a defensive strategy.

Recommended next steps

Since no PTAB activity exists for US8271315, a defendant currently facing assertion of this patent should:

• Conduct a thorough prior art search: Without PTAB review, the patent's validity has not been challenged using the administrative review processes. A comprehensive prior art search is crucial to identify potential invalidity grounds under 35 U.S.C. §§ 102 and 103 (for IPR) or additional grounds including §§ 101, 112 (for PGR or CBM, if applicable).
• Evaluate eligibility for IPR/PGR/CBM:
  • IPR: The patent was issued on September 18, 2012. IPR can be filed after 9 months of the patent's grant, and applies to patents issued before, on, or after September 16, 2012. This patent is eligible for IPR.
  • PGR: PGR must be filed within nine months of the patent's issuance and applies to patents with an effective filing date on or after March 16, 2013. Given the patent's issue date of September 18, 2012, and priority date of November 5, 2002, it is not eligible for PGR.
  • CBM: CBM review was a transitional program available until September 15, 2020. Although it allowed challenges to business method patents on broad grounds (including § 101 and § 112), the deadline for filing such petitions has passed.
• Consider filing an Inter Partes Review (IPR) petition: If strong prior art is found, an IPR petition could be a viable strategy to challenge the patentability of claims 1-17 under 35 U.S.C. §§ 102 or 103 based on patents or printed publications. This could offer a faster and potentially less expensive alternative to district court litigation for challenging validity. However, it's important to note the one-year time limit for filing an IPR petition after being served with a complaint alleging infringement.
• Monitor for future PTAB filings: Given the ongoing litigation, other defendants may choose to file PTAB petitions, which could impact the patent's validity.