Patent No. EP3752180 (titled "Methods For Treating Cancer With Anti-Pd-1 Antibodies") was filed by Merck Sharp & Dohme on Feb 8, 2019. The application was issued on Jul 22, 2026.

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
| Company | Opposition Date | Representative |
|---|---|---|
| WUESTHOFF & WUESTHOFF | Aug 17, 2026 | WICHMANN |
| ABBOTT PRODUCTION OPERATIONS | Jul 22, 2026 | TER MEER STEINMEISTER & PARTNER GBR |
| ABBOTT PRODUCTION OPERATIONS | Jul 22, 2026 | TER MEER UND PARTNER |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
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