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The patent EP2059232 was granted to Alfasigma on Apr 19, 2017. The application was filed on Jul 31, 2007 under application number EP07804680A. The patent is currently recorded with a legal status of "Revoked".

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 | Opposition Status |
|---|---|---|---|
| PENTAFARMA | Jan 19, 2018 | PATENTREE | ADMISSIBLE |
| SANDOZ | Jan 19, 2018 | TER MEER STEINMEISTER & PARTNER | ADMISSIBLE |
| POLPHARMA | Jan 18, 2018 | ISARPATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP1676847 |
| INTERNATIONAL-SEARCH-REPORT | WO2006094737 |
| OPPOSITION | EP0155421 |
| OPPOSITION | EP0547294 |
| OPPOSITION | EP0616808 |
| OPPOSITION | EP1557421 |
| OPPOSITION | EP1676847 |
| OPPOSITION | EP1874273 |
| OPPOSITION | EP2059232 |
| OPPOSITION | GB2079270 |
| OPPOSITION | ITMI20061692 |
| OPPOSITION | US2002107200 |
| OPPOSITION | US2005101598 |
| OPPOSITION | US2005272754 |
| OPPOSITION | WO2005000123 |
| OPPOSITION | WO2005044823 |
| OPPOSITION | WO2006008512 |
| OPPOSITION | WO2006094737 |
| OPPOSITION | WO2008029208 |
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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