PTAB challenges

Proceedings overview

One AIA trial proceeding has been filed against US patent 11106744. This proceeding is currently active and pending an institution decision. Given its early stage, the patent's validity remains untested by the PTAB. This means a defendant currently facing assertion of this patent would still need to develop their own invalidity contentions, as no claims have yet been challenged or cancelled by the PTAB.

IPR2026-00235 — X Corp. v. Search And Share Technologies LLC

• Type: Inter Partes Review
• Filed: 2026-02-04
• Status: Pending – The proceeding is active and awaiting a decision on whether to institute a trial.
• Judge panel: Not yet public at this stage of the proceeding.
• Petition grounds: The petition details are not yet publicly available in the structured data, but typically involve challenges to claims under 35 U.S.C. §§ 102 and/or 103 based on prior art patents or printed publications.
• Institution decision: Not yet issued. The statutory deadline for the institution decision is approximately six months from the petition filing date, which would be around 2026-08-04.
• Final Written Decision: Not applicable; an institution decision has not yet been issued.
• Settlement / termination: Not applicable; the proceeding is active.
• Appeal: Not applicable; no Final Written Decision has been issued to appeal.
• Defensive value: This proceeding is in its initial stages. It indicates that X Corp. believes there are invalidity grounds against US11106744. However, until an institution decision is made and potentially a Final Written Decision is issued, no claims of the patent have been impacted or hardened. For a defendant, this means the patent's validity is currently being questioned, but no claims have been canceled or sustained by the PTAB.

Strategic summary

US patent 11106744 currently has one active Inter Partes Review, IPR2026-00235, filed by X Corp. This IPR is in the pre-institution phase, meaning the PTAB has not yet decided whether to formally initiate a trial on the challenged claims. As such, all claims of US11106744 remain legally active and "UNTESTED" by the PTAB at this point. No claims have been cancelled or sustained through PTAB review.

The estoppel landscape remains largely open for other potential petitioners. If IPR2026-00235 is instituted, X Corp. (and its privies) would be estopped under 35 U.S.C. § 315(e)(2) from asserting any grounds raised or that reasonably could have been raised in the IPR against the claims in a subsequent district court action or other USPTO proceeding. However, for a new defendant, the full range of prior art grounds (under §§ 102 and 103) is still available for potential challenge. The filing by X Corp. suggests that this patent may be facing assertion or that its validity is of interest to major technology companies. The involvement of Unified Patents in tracking the case (as indicated by the Google Patents link) is a signal that this patent family is on the radar of defensive aggregators.

Recommended next steps

• Monitor the status of IPR2026-00235 closely. The most immediate upcoming milestone is the institution decision, expected around 2026-08-04.
• If you are a defendant, consider conducting your own prior art search and analysis to identify potential invalidity grounds. The fact that an IPR has been filed indicates that the patent owner may be asserting this patent, or that its validity is otherwise under scrutiny.
• Review the public filings for IPR2026-00235 once they become available on the USPTO PTAB E2E system to understand the specific claims challenged and the prior art cited by X Corp. This will inform any independent invalidity efforts. The PTAB case details can be found at https://portal.unifiedpatents.com/ptab/case/IPR2026-00235.