Patent No. EP3810201 (titled "Gip/Glp1 Agonist Compositions") was filed by ELI Lilly on Jun 14, 2019. The application was issued on Aug 2, 2023.
Pharmaceutical GIP/GLP1 co-agonist peptide composition for subcutaneous injection. The composition comprises tirzepatide, NaCl, and dibasic sodium phosphate. The composition includes tirzepatide, NaCl, and dibasic sodium phosphate.

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 |
|---|---|---|
| BULLE DR | Mar 7, 2024 | KUTZENBERGER WOLFF & PARTNER |
| GALENICUM HEALTH SLU | Mar 7, 2024 | GALENICUM HEALTH SLU |
| GENERICS UK | Mar 7, 2024 | ELKINGTON AND FIFE |
| ELKINGTON AND FIFE | Mar 6, 2024 | ELKINGTON AND FIFE |
| STRAWMAN | Mar 6, 2024 | HOFFMANN EITLE |
| KRAUS & LEDERER PARTGMBB | Mar 5, 2024 | KRAUS & LEDERER PARTGMBB |
| SANDOZ | Feb 23, 2024 | TER MEER STEINMEISTER & 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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