Patent No. EP3294285 (titled "Cabazitaxel And Its Use For Treating Cancer") was filed by Aventis Pharma on May 12, 2016. The application was issued on Dec 18, 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 |
|---|---|---|
| MEDAC GESELLSCHAFT FUR KLINISCHE SPEZIALPRAPARATE | Sep 18, 2020 | UEXKULL & STOLBERG |
| ZENTIVA | Sep 18, 2020 | GREINER |
| STADA ARZNEIMITTEL | Sep 17, 2020 | HAMM & WITTKOPP |
| GENERICS UK | Sep 16, 2020 | TER MEER STEINMEISTER & PARTNER |
| DR REDDYS LABORATORIES BETAPHARM ARZNEIMITTEL | Aug 26, 2020 | WUNSCHE |
| FRESENIUS KABI DEUTSCHLAND | Jul 9, 2020 | - |
| HEXAL | Jul 1, 2020 | MAIWALD |
| TEVA PHARMACEUTICALS | Jun 9, 2020 | LEDERER & KELLER PATENTANWALTE PARTNERSCHAFT MBB |
| ACCORD HEALTHCARE | Jun 3, 2020 | AERA |
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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