Patent No. EP2504353 (titled "Lipopeptide Compositions And Related Methods") was filed by Cubist Pharmaceuticals on Nov 23, 2010. The application was issued on Sep 13, 2023.

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 |
|---|---|---|
| PAJARO | Apr 11, 2019 | BIRD & BIRD |
| HGF | Apr 10, 2019 | DENTONS UK AND MIDDLE EAST |
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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