Patent No. EP2258345 (titled "Solid Pharmaceutical Dosage Form Comprising An Hiv Protease Inhibitor Solid Dispersion") was filed by Abbott Laboratories on Aug 23, 2004. The application was issued on Sep 21, 2016.

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 |
|---|---|---|
| JANSSEN SCIENCES IRELAND UC | Jun 21, 2017 | VO |
| HEXAL | Jun 21, 2017 | EDER |
| F HOFFMANN LA ROCHE | Jun 20, 2017 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB |
| TEVA PHARMACEUTICAL INDUSTRIES LTD | Jun 20, 2017 | BEST |
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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