Litigation summary

The search results confirm the information from the patent text and provide more context for the Darts-ip platform.

Litigation Involving US Patent 12138052:

1. PTAB Case:
   • Case Number: IPR2026-00097
   • Jurisdiction: Patent Trial and Appeal Board (PTAB)
   • Plaintiff(s)/Petitioner(s): Unified Patents
   • Defendant(s)/Patent Owner(s): Kurin Inc (Assignee of US12138052B1)
   • Filing Date: The patent text lists "PTAB case IPR2026-00097 filed (Not Instituted - Procedural)" and dates for the patent application filing in 2024. Given the IPR case number "IPR2026-00097", it was filed in 2026. The exact day in 2026 is not explicitly stated in the provided text or search results.
   • Outcome/Current Status: Not Instituted - Procedural

Regarding the "First worldwide family litigation filed" referenced with the Darts-ip link, the search results for "US12138052B1 litigation Darts-ip" indicate that Darts-ip provides access to litigation history for patent families. However, the snippets themselves do not provide the specific case details (plaintiff, defendant, case number, filing date, outcome) without accessing the Darts-ip database directly. To get these details, one would need to be a Darts-ip subscriber or order a report. Therefore, I cannot provide those specific details from the available search results.

Based on the available information, the only explicitly detailed litigation is the PTAB IPR case.The search results confirm the existence of IPR2026-00097 and provide more details about it.

Specifically, for IPR2026-00097:

• Case Number: IPR2026-00097
• Jurisdiction: Patent Trial and Appeal Board (PTAB)
• Plaintiff(s)/Petitioner(s): Unified Patents (from original patent text)
• Defendant(s)/Patent Owner(s): Kurin, Inc.
• Filing Date: March 10, 2026 (for "Petitioner's Sur-Reply Brief Against Discretionary Denial" which implies the petition was filed earlier, but a document filing date for a "Petitioner's Sur-Reply Brief" is Mar 10, 2026. The institution decision date is May 14, 2026. This implies the petition was filed considerably earlier than Mar 10, 2026, probably in late 2025. Given the "IPR2026" identifier, it should be in late 2025 or very early 2026. The search results show other IPR2026 cases having filing dates in late April/early May 2026, e.g., IPR2026-00342 on 2026-04-24. The Morrison Foerster article from May 19, 2026, states "On May 14, 2026, USPTO Director John Squires issued a precedential decision in Magnolia Medical Technologies, Inc. v. Kurin, Inc. Director Squires denied institution of an inter partes review (IPR) petition which the petitioner filed shortly before trial, after losing the ability to present anticipation and obviousness defenses in district court." This indicates the decision was May 14, 2026, and the petition was filed "shortly before trial". I am unable to find the exact filing date of the petition IPR2026-00097 from the search results, only document filing dates within the case. However, it is confirmed to be a 2026 case.
• Outcome/Current Status: Not Instituted - Procedural. The IPR petition was denied institution by Director Squires on May 14, 2026.

Regarding the Darts-ip link and "First worldwide family litigation filed", the search results indicate that Darts-ip is a database for patent infringement cases and litigation data. However, the search snippets do not provide direct details of specific cases for US12138052B1 beyond stating that the platform offers this information to subscribers. Without direct access to Darts-ip, I cannot retrieve the specific details of other cases.

Therefore, the only known litigation with specific details available is the PTAB case.Known litigation involving US patent 12138052:

1. Case: Inter Partes Review (IPR)
   • Case Number: IPR2026-00097
   • Plaintiff(s)/Petitioner(s): Unified Patents
   • Defendant(s)/Patent Owner(s): Kurin, Inc.
   • Jurisdiction: Patent Trial and Appeal Board (PTAB)
   • Filing Date: The petition for this IPR was filed in 2026. While the precise petition filing date is not explicitly stated in the provided snippets, a document titled "Petitioner's Sur-Reply Brief Against Discretionary Denial" was filed on March 10, 2026.
   • Outcome/Current Status: Not Instituted - Procedural. The Director of the USPTO, John Squires, issued a precedential decision on May 14, 2026, denying institution of the IPR petition.

The Google Patents page for US12138052B1 also indicates "Family has litigation" and "First worldwide family litigation filed," with a link to Darts-ip. While Darts-ip is a comprehensive database for patent litigation globally, the provided search results do not offer specific case details (plaintiff, defendant, jurisdiction, case number, filing date, and outcome) for this broader family litigation without direct access to their subscription-based platform. Therefore, beyond the PTAB case, specific details of other litigation involving US12138052 are not available from the provided information.