12110520

2 known cases. View patent page →

Cases
2
Active
0
2 closed
Filed
2025
Top venue
D. New Jersey
1 case

Halozyme, Inc. v. Merck Sharp & Dohme Corp. et al.

administratively stayed
Docket:
2:25-cv-03179
Filed:
2025-04-24
Patents:12110520
π Halozyme, Inc.Δ Merck Sharp & Dohme Corp.Δ Merck Sharp and Dohme LLC

Halozyme sued Merck for patent infringement over Merck's subcutaneous Keytruda (SC KEYTRUDA, berahyaluronidase alfa), asserting 15 patents including the '520 patent and seeking damages and an injunction. The case is pending in the District of New Jersey and was later reported as administratively stayed pending PTAB and appellate proceedings.

Merck Sharp & Dohme LLC v. Halozyme, Inc.

final written decision
Docket:
PGR2025-00017
Filed:
2025-01-17
Patents:12110520
π Merck Sharp & Dohme LLCΔ Halozyme, Inc.

Merck filed a post-grant review challenging claims of the '520 patent on obviousness, written description, and enablement grounds. The PTAB instituted review on written description and enablement, and later reportedly issued a Final Written Decision finding the challenged claims unpatentable while rejecting Merck's novelty challenge; Halozyme may appeal to the Federal Circuit.