PTAB challenges

Proceedings overview

There are no recorded AIA trial proceedings directly concerning U.S. Patent No. 9,942,705 in the USPTO Open Data Portal as of the most recent ingest. A detailed web search also did not reveal any PTAB proceedings specifically challenging the claims of US 9,942,705. This means that, from a PTAB perspective, all claims of the patent remain untested and sustained by default.

It is important to note a discrepancy in the provided information: The patent has an "Anticipated expiration" date of 2025-04-04, and its "Legal status" is listed as "Expired - Lifetime". This indicates the patent expired in April 2025. Filing new infringement lawsuits in April 2026, as stated in the "Litigation summary" for X One, Inc. v. Dominos Pizza, Inc. et al (2:26-cv-00311), X One, Inc. v. DoorDash Inc et al. (2:26-cv-00312), X One, Inc. v. Neighborfavor Inc et al. (2:26-cv-00313), X One, Inc. v. Pizza Hut Of America Inc et al. (2:26-cv-00314), and X One Inc. v. Domino's Pizza Inc. et al (4:26-cv-03260), is highly unusual for an expired patent, unless the lawsuits are solely for alleged infringement that occurred prior to the patent's expiration date.

Furthermore, the "Litigation summary" mentions IPR2017-01255 with Uber Technologies, Inc. as Petitioner and X One, Inc. as Patent Owner, but then clarifies that the Federal Circuit reversed the PTAB's decision on a related patent, U.S. Patent No. 8,798,593. A search confirms that IPR2017-01255 was indeed directed at U.S. Patent No. 8,798,593, not U.S. Patent No. 9,942,705. Therefore, there is no PTAB activity on record for US 9,942,705.

Strategic summary

Currently, all claims of US 9,942,705 are UNTESTED by AIA trial proceedings. This means there are no PTAB decisions that have invalidated or confirmed the patentability of any specific claims of this patent.

Given that the patent is listed as "Expired - Lifetime" with an "Anticipated expiration" date of 2025-04-04, the window for filing new AIA trial proceedings (like IPRs) has closed. IPRs can only be instituted on unexpired patents. Therefore, future PTAB challenges to this specific patent are not possible.

The absence of PTAB challenges for US 9,942,705 implies that any potential defendant facing assertion of this patent today would not be estopped by prior PTAB proceedings. All prior-art grounds (e.g., anticipation under § 102 or obviousness under § 103) are theoretically still available for a defendant to assert in district court litigation, as there have been no PTAB Final Written Decisions on this patent to create estoppel under § 315(e)(2).

The "Litigation summary" does indicate ongoing infringement lawsuits filed in April 2026, which is after the patent's expiration. This suggests that the lawsuits are likely seeking damages for alleged infringement that occurred before April 4, 2025.

Recommended next steps

Given the patent US 9,942,705 is currently listed as expired, any assertion of this patent for activity occurring after April 4, 2025, would be invalid.

For a defendant currently being asserted against for alleged infringement prior to the patent's expiration date:

• Investigate the validity of the expiration date: Double-check the patent's full prosecution history to confirm the exact patent term and any Patent Term Adjustments (PTA) that might extend its life beyond the listed 2025-04-04 date. This is crucial for understanding the scope of potential damages.
• Assess prior art: Since there are no PTAB proceedings, all prior art defenses (e.g., arguments of invalidity under 35 U.S.C. §§ 102 and 103) remain available in district court litigation. A thorough prior art search and analysis, building on the "Prior art" section provided, should be conducted to identify strong invalidity arguments against the asserted claims. The cited prior art, especially U.S. Patent Application Publication No. 2005/0245258 A1, should be particularly scrutinized to determine if it anticipates or renders obvious the claimed "instant buddy" functionality.
• Challenge validity in district court: Without PTAB precedent, a defendant's primary avenue for challenging the validity of US 9,942,705 would be through counterclaims in the ongoing district court infringement lawsuit.