Patent No. EP2318419 (titled "Boronate Ester Compounds And Pharmaceutical Compositions Thereof") was filed by Millennium Pharmaceuticals on Jun 16, 2009. The application was issued on Oct 30, 2024.

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 |
|---|---|---|
| ACTAVIS GROUP PTC EHF | Jan 8, 2016 | HAMM&WITTKOPP PATENTANWÄLTE PARTMBB |
| GENERICS UK | Jan 8, 2016 | FRKELLY |
| TEVA PHARMACEUTICAL INDUSTRIES LTD | Jan 8, 2016 | HAMM&WITTKOPP PATENTANWÄLTE PARTMBB |
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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