Patent No. EP3686290 (titled "Method And Kits For Identifying Of Cdk9 Inhibitors For The Treatment Of Cancer") was filed by Memorial Sloan Kettering Cancer Center on Apr 2, 2015. The application was issued on Aug 23, 2023.

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 |
|---|---|---|
| HAMPTON KNOWLES | May 22, 2024 | D YOUNG |
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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