Patent No. EP2662094 (titled "Cylodextrin Complexation Methods For Formulating Peptide Proteasome Inhibitors") was filed by Onyx Therapeutics on May 8, 2013. The application was issued on Apr 17, 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 |
|---|---|---|
| BRAND MURRAY FULLER | Jan 17, 2025 | BRAND MURRAY FULLER |
| HGF | Jan 17, 2025 | HGF |
| RUMI | Jan 17, 2025 | TER MEER STEINMEISTER & PARTNER |
| STADA ARZNEIMITTEL | Jan 17, 2025 | KERNEBECK |
| TER MEER STEINMEISTER & PARTNER PATENTANWALTE MBB | Jan 17, 2025 | TER MEER STEINMEISTER & PARTNER |
| FRESENIUS KABI DEUTSCHLAND | Jan 9, 2025 | FRESENIUS KABI DEUTSCHLAND |
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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