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The patent EP3862561 was granted to General Electric on Apr 19, 2023. The application was filed on Feb 5, 2021 under application number EP21155544A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| WOBBEN PROPERTIES | Jan 19, 2024 | EISENFUHR SPEISER | ADMISSIBLE |
| VESTAS WIND SYSTEMS | Jan 18, 2024 | SAMSON & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | CN106704103 |
| OPPOSITION | EP1873396 |
| OPPOSITION | EP2878811 |
| OPPOSITION | EP3088733 |
| OPPOSITION | EP3118783 |
| OPPOSITION | JP2019165599 |
| OPPOSITION | US2011133458 |
| OPPOSITION | US2016333855 |
| OPPOSITION | US2019155228 |
| OPPOSITION | WO2011076295 |
| OPPOSITION | WO2012164075 |
| OPPOSITION | WO2017211367 |
| SEARCH | EP3273055 |
| SEARCH | US2014100703 |
| SEARCH | US2016084233 |
| SEARCH | US2018335019 |
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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Decision to grant a European patent
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Mar 3, 2023
(Electronic) Receipt
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Mar 3, 2023
Filing of the translations of the claims
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Mar 3, 2023
French translation of claims
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German translation of the claims
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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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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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Aug 16, 2021
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Notification of forthcoming publication
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European search opinion
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European search report
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Information on Search Strategy
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Jun 25, 2021
Search started
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Abstract
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Claims
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Feb 5, 2021
Description
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Designation of inventor
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Feb 5, 2021
Drawings
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Feb 5, 2021
Request for grant of a European patent
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