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Case / Trial ID Number
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Category
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Patent
Trademark
Copyright
Design
Filing Date
Decision Verdict Date
Court / Tribunal
Bench / Panel Judges
Petitioner / Claimant (Plaintiff)
Merck Sharp & Dohme LLC
Respondent / Defendant
Halozyme, Inc. et al.
Dispute Summary
Merck has filed a post‑grant review petition challenging Halozyme’s enzyme‑based contraceptive patent, arguing that the claims lack sufficient written description and enablement. The reply emphasizes the vast, undefined genus of modified PH20 polypeptides and the impossibility of testing all variants.
Outcome / Ruling
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