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The patent EP3189101 was granted to Totalenergies Onetech Belgium on Sep 3, 2025. The application was filed on Jan 22, 2016 under application number EP16701463A. 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 |
|---|---|---|---|
| BASELL POLIOLEFINE ITALIA | May 27, 2019 | LYONDELLBASELL | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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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Appeal
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Appeal
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(Electronic) Receipt
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Appeal
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Reply to appeal
Appeal
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Appeal
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Notice of appeal
Appeal
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OPPO
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Decision to grant a European patent
Search/Exam
Jul 11, 2018
(Electronic) Receipt
Search/Exam
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Filing of the translations of the claims
Search/Exam
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French translation of claims
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Letter accompanying subsequently filed items
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Text intended for grant (clean copy)
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Examination started
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(Electronic) Receipt
Search/Exam
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Amended description with annotations
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Letter accompanying subsequently filed items
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Communication to designated inventor
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Priority search results copy provided by EPO
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Search/Exam
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Annex
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Request for entry into the European phase
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Published international application - A1
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PCTRO
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Abstract
PCTRO
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PCTRO
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PCTRO
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