Patent No. EP2451445 (titled "Process For Drying Of Bibw2992, Of Its Salts And Of Solid Pharmaceutical Formulations Comprising This Active Ingredient") was filed by Boehringer Ingelheim on Jul 5, 2010. The application was issued on Apr 3, 2019.

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 |
|---|---|---|
| GENERICS UK | Dec 27, 2019 | HGF |
| LEK PHARMACEUTICALS DD | Dec 20, 2019 | TER MEER STEINMEISTER & PARTNER |
| TEVA PHARMACEUTICALS | Nov 20, 2019 | KRAUS & LEDERER PARTGMBB |
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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