Patent No. EP3682884 (titled "Crystal Form Of Gsk1278863 And Preparation Method And Pharmaceutical Use Thereof") was filed by Crystal Pharmaceutical Suzhou on Mar 13, 2018. The application was issued on Apr 24, 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 |
|---|---|---|
| ZBM PATENTS | Jan 24, 2025 | ZBM PATENTS ZEA |
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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