Patent No. EP2120568 (titled "Fixed Drug Ratios For Treatment Of Hematopoietic Cancers And Proliferative Disorders") was filed by Celator Pharmaceuticals on Feb 15, 2008. The application was issued on Nov 15, 2017.

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 | Aug 15, 2018 | HGF |
| TEVA PHARMACEUTICALS | Aug 15, 2018 | TEVA PHARMACEUTICALS |
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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