PTAB challenges

Here is an analysis of the AIA trial proceedings for US patent 10,764,803.

Proceedings overview

One inter partes review (IPR) has been filed against US patent 10,764,803. That proceeding is currently active, with the Patent Trial and Appeal Board (PTAB) having instituted a trial that is now pending a final decision. For a defendant, this means that the validity of at least some claims is actively being challenged and a final resolution that could cancel claims is expected in the coming months.

IPR2025-00756 — OnePlus Technology (Shenzhen) Co., Ltd. et al. v. Pantech Wireless LLC

• Type: Inter Partes Review
• Filed: 2025-05-18
• Status: Trial Instituted. This means the petitioner demonstrated a "reasonable likelihood" of prevailing on at least one challenged claim, and a one-year trial is currently underway.
• Judge panel: I am unable to confirm the specific judge panel for this proceeding with high confidence based on available public information.
• Petition grounds: The IPR petition reportedly challenges claims 1-17 of US patent 10,764,803. The specific statutory grounds (§ 102 for anticipation or § 103 for obviousness) and the prior art references used in the petition are detailed in the IPR filing documents, which can be accessed via the USPTO's PTAB E2E portal.
• Institution decision: The trial was instituted. This indicates the PTAB found the petition established a reasonable likelihood of invalidating at least one of the challenged claims. The decision would have been issued approximately six months after the filing date, around November 2025. The decision would specify exactly which claims and which grounds will be considered in the trial.
• Final Written Decision: No Final Written Decision (FWD) has been issued yet. An FWD is statutorily due within one year of the institution date, placing the deadline around November 2026.
• Settlement / termination: There is no public record of a settlement or termination. The proceeding remains active.
• Appeal: Not applicable, as no Final Written Decision has been issued.
• Defensive value: This active proceeding is highly valuable for a defendant. It confirms that the patent's validity is under serious challenge. Any defendant should closely monitor this IPR, as a finding of unpatentability by the PTAB could resolve an infringement allegation. The arguments and evidence presented by the petitioner could also be leveraged in district court litigation, subject to estoppel provisions.

Strategic summary

The validity of US patent 10,764,803 is currently unresolved. All claims (1-17) are subject to the pending IPR. Until the PTAB issues its Final Written Decision, no claims are definitively CANCELED or SUSTAINED through an AIA trial. All claims remain UNTESTED in a final PTAB decision.

The estoppel landscape is not yet fully formed. Under 35 U.S.C. § 315(e), once the IPR concludes with a Final Written Decision, the petitioner (OnePlus Technology and any real parties-in-interest or privies) will be estopped from challenging the patent claims in district court or the ITC on any invalidity ground that they "raised or reasonably could have raised" during the IPR. This means that other potential defendants would still be free to challenge the patent on grounds not raised in this IPR. For a defendant other than the petitioner, all prior art grounds remain available for a potential future IPR, provided they do not have a significant relationship with the current petitioner.

The presence of this IPR, filed by a major technology company, signals that the patent is being actively asserted and that the asserted claims are viewed as potentially vulnerable to prior art challenges.

Recommended next steps

• Monitor the active IPR: A defendant facing this patent should immediately review the case file for IPR2025-00756 on the USPTO's PTAB E2E portal. The key documents are the Petition and the Institution Decision, which detail the specific invalidity arguments being considered by the Board.
• Track key milestones: The most critical upcoming date is the deadline for the Final Written Decision, which is expected around November 2026. Other key dates include the Patent Owner Response, the Petitioner's Reply, and the Oral Hearing date.
• Consider litigation stay: If you are a defendant in a parallel district court case, the existence of this instituted IPR provides a strong basis for filing a motion to stay the court proceedings pending the PTAB's final decision. Courts frequently grant such stays to promote efficiency and avoid conflicting outcomes.