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The patent EP3547329 was granted to Hitachi GE Nuclear Energy on Mar 15, 2023. The application was filed on Mar 15, 2019 under application number EP19163051A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| WESTINGHOUSE ELECTRIC SWEDEN | Jan 27, 2021 | BJERKEN HYNELL KB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2001056388 |
| DESCRIPTION | JP2002189094 |
| OPPOSITION | JPH07301688 |
| OPPOSITION | JPH07311291 |
| SEARCH | JP2002196090 |
| SEARCH | JP3283902B |
| SEARCH | US2012063561 |
| SEARCH | US5367547 |
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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OPPO
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Decision to grant a European patent
Search/Exam
Mar 20, 2020
(Electronic) Receipt
Search/Exam
Mar 20, 2020
Filing of the translations of the claims
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Mar 20, 2020
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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Document concerning representation
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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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Nov 19, 2019
(Electronic) Receipt
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Letter accompanying subsequently filed items
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Reply to Written Opinion prepared by the EPO
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Notification of forthcoming publication
Search/Exam
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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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Search started
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Communication to designated inventor
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Communication to designated inventor
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Mar 15, 2019
Abstract
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Mar 15, 2019
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Claims
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Mar 15, 2019
Description
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Mar 15, 2019
Designation of inventor
Search/Exam
Mar 15, 2019
Drawings
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Mar 15, 2019
Request for grant of a European patent
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