Patent 12297278
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
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PTAB activity (1)
AIA trial proceedings — IPR, PGR, CBM — filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced directly from the PTAB Trial API.
- PGR2026-00027PGRfiled Feb 12, 2026vs. Merck Sharp & Dohme LLCPending
Cached for 24 hours. Status strings are sourced verbatim from the PTAB API; the colored badge is our heuristic classification.
Cases on file (1)
Group view →Specific litigation cases in our database that name US patent 12297278. The free-form analysis below may also discuss cases beyond this list.
- PGR2026-00027Patent Trial and Appeal Board (PTAB)Pending
Defendants: Surrozen Operating Inc
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Known litigation involving US patent 12297278 includes:
- Case Number: PGR2026-00027
- Plaintiff(s): Unified Patents (Petitioner) [cite: the Sequence Listing XML associated with this application]
- Defendant(s): Surrozen Operating Inc (Patent Owner) [cite: the Sequence Listing XML associated with this application]
- Jurisdiction: Patent Trial and Appeal Board (PTAB) [cite: the Sequence Listing XML associated with this application]
- Filing Date: Not explicitly provided, but the case is noted as "filed" as of the patent's information. [cite: the Sequence Listing XML associated with this application]
- Outcome/Current Status: Pending [cite: the Sequence Listing XML associated with this application]
Additionally, the patent record indicates that the "Family has litigation" with a link to Darts-IP, however, specific details for other litigation cases are not available from the provided patent text or accessible search results. [cite: the Sequence Listing XML associated with this application]
Generated 5/29/2026, 12:47:04 AM