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Patent
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Petitioner / Claimant (Plaintiff)
Charles River Laboratories, Inc.
Respondent / Defendant
Seikagaku Corporation
Dispute Summary
Charles River Laboratories has filed a Post‑Grant Review petition seeking cancellation of claims 1‑10 of Seikagaku’s 11,959,109 patent covering recombinant endotoxin assay methods. The petition alleges lack of written description, lack of enablement, and anticipation by a 2019 publication.
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