Litigation summary

US patent 6888181 has been involved in at least one litigation proceeding.

Known Litigation Involving US Patent 6888181:

1. Case: IPR2025-01082 (Inter Partes Review)
   • Jurisdiction: Patent Trial and Appeal Board (PTAB) of the USPTO.
   • Case Number: IPR2025-01082.
   • Filing Date: The IPR was filed, and it was indicated as "Pending - Instituted" on the Google Patents page as of the original fetch date. The USPTO Open Data Portal shows a "JUDGMENT Granting Request for Adverse Judgment After Institution of Trial" with a document filing date of May 13, 2026.
   • Outcome/Current Status: The PTAB case IPR2025-01082 is listed as "Pending - Instituted" on the Google Patents page. More recent information from the USPTO Open Data Portal indicates a "JUDGMENT Granting Request for Adverse Judgment After Institution of Trial" was filed on May 13, 2026. This suggests the case has concluded with an adverse judgment against the patent owner. The patent owner is not explicitly named in the snippets for this IPR, but the current assignee of US6888181 is [Marlin Semiconductor Ltd.](/litigations/by-defendant/Marlin%20Semiconductor%20Ltd.)

The Google Patents page also mentions "First worldwide family litigation filed" with a link to Darts-ip. While Darts-ip specializes in providing access to global IP case data, without a direct subscription or further specific case details, the provided link leads to a general overview of Darts-ip's services for the patent family rather than direct litigation details for US6888181. Therefore, specific details (plaintiff, defendant, jurisdiction, case number, filing date, outcome) for any other worldwide litigation are not immediately available through the provided link or a general search.

Searches for CAFC and PACER litigation specific to US6888181 did not yield additional, readily available case details in the provided snippets, which aligns with PACER requiring account registration for detailed searches and the CAFC often hearing appeals from district courts or the PTAB. Given the IPR proceeding, any CAFC involvement would likely be an appeal of the PTAB decision, which would be a subsequent event to the IPR's conclusion.Known litigation involving US patent 6888181 includes one Inter Partes Review (IPR) proceeding before the Patent Trial and Appeal Board (PTAB).

Known Litigation Involving US Patent 6888181:

1. PTAB Case: IPR2025-01082
   • Plaintiff(s): Not explicitly stated in the provided snippets, but typically the Petitioner in an IPR. The Google Patents page lists "Petitioner: Unified Patents" for IPR2025-01082.
   • Defendant(s): Not explicitly stated as a defendant, but the Patent Owner. The current assignee of US6888181 is Marlin Semiconductor Ltd, implying they would be the Patent Owner/Respondent in this proceeding.
   • Jurisdiction: Patent Trial and Appeal Board (PTAB) of the United States Patent and Trademark Office (USPTO).
   • Case Number: IPR2025-01082.
   • Filing Date: The IPR was filed, and Google Patents indicated it was initiated and pending as of the information fetch date. The USPTO Open Data Portal indicates a document titled "JUDGMENT Granting Request for Adverse Judgment After Institution of Trial" was filed on May 13, 2026.
   • Outcome or Current Status: The case is currently concluded with a "JUDGMENT Granting Request for Adverse Judgment After Institution of Trial" issued on May 13, 2026. This means an adverse judgment was granted against the patent owner after the trial was instituted.

While the Google Patents page mentions "Family has litigation" and links to Darts-ip for "First worldwide family litigation filed," further specific details such as plaintiff(s), defendant(s), jurisdiction, case number, filing date, and outcome for any other litigation concerning US6888181 are not publicly available through the provided search results without further access to subscription-based databases like Darts-ip or PACER.