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The patent EP2949707 was granted to Omya on Mar 1, 2017. The application was filed on May 26, 2014 under application number EP14169923A. 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 |
|---|---|---|---|
| SCHAEFER KALK | Dec 1, 2017 | MAI BESIER | ADMISSIBLE |
| CALCIT DOO | Nov 28, 2017 | WITTMANN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0607840 |
| DESCRIPTION | US5278248 |
| DESCRIPTION | WO2010098821 |
| DESCRIPTION | WO2013061068 |
| OPPOSITION | EP0850880 |
| OPPOSITION | EP2194103 |
| OPPOSITION | US2010035076 |
| OPPOSITION | US2010095869 |
| OPPOSITION | US2013174994 |
| OPPOSITION | US5731034 |
| OPPOSITION | WO2004016566 |
| OPPOSITION | WO2009009553 |
| OPPOSITION | WO2013030178 |
| OPPOSITION | WO2013167420 |
| OPPOSITION | WO2014001063 |
| OPPOSITION | WO2014044778 |
| SEARCH | EP2194103 |
| SEARCH | GB2139606 |
| SEARCH | WO2004016566 |
| SEARCH | WO2009009553 |
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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Description
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Letter concerning the inventor
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Decision to grant a European patent
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French translation of claims
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(Electronic) Receipt
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Amended claims with annotations
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Description
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Letter accompanying subsequently filed items
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Annex to the communication
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Communication from the Examining Division
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Examination started
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(Electronic) Receipt
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Notification of forthcoming publication
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(Electronic) Receipt
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Letter concerning the inventor
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May 26, 2014
Abstract
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Claims
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May 26, 2014
Description
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May 26, 2014
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May 26, 2014
Request for grant of a European patent
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