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The patent EP3137764 was granted to Windcare India PVT on Jun 10, 2020. The application was originally filed on Apr 30, 2015 under application number EP15786250A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| SUZLON ENERGY | Mar 10, 2021 | - | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2014318033 |
| INTERNATIONAL-SEARCH-REPORT | WO2008132226 |
| INTERNATIONAL-SEARCH-REPORT | WO2011161740 |
| OPPOSITION | DE102004056340 |
| OPPOSITION | EP2224126 |
| OPPOSITION | WO2011110254 |
| SEARCH | DE102004056340 |
| SEARCH | EP2224126 |
| SEARCH | WO2011110254 |
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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Decision to grant a European patent
Search/Exam
Mar 18, 2020
(Electronic) Receipt
Search/Exam
Mar 18, 2020
French translation of claims
Search/Exam
Mar 18, 2020
German translation of the claims
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Mar 18, 2020
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Examination started
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Priority search results
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(Electronic) Receipt
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Amended claims with annotations
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Amended description with annotations
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Letter accompanying subsequently filed items
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European search opinion
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Information on Search Strategy
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Supplementary European search report
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Search started
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Communication to designated inventor
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Communication to designated inventor
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(Electronic) Receipt
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Nov 28, 2016
Request for entry into the European phase
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Information on entry into European phase
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Copy of the international search report
Search/Exam
Nov 5, 2015
Published international application - A1
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