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The patent EP3115336 was granted to Lair Liquide Socit Anonyme Pour Letude ET Lexploitation DES Procds Georges Claude on Jan 5, 2022. The application was originally filed on Jul 10, 2015 under application number EP15400030A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | EP2865638 |
| OPPOSITION | US2009232729 |
| OPPOSITION | US2011146991 |
| SEARCH | EP2233433 |
| SEARCH | EP2865638 |
| SEARCH | US2003110694 |
| SEARCH | US2009232729 |
| SEARCH | US2011146991 |
| SEARCH | US3297408 |
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.
Date
Description
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Dec 10, 2021
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Means of redress
OPPO
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Refund of fees
OPPO
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Dec 10, 2018
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Mar 16, 2018
Feb 1, 2018
Decision to grant a European patent
Search/Exam
Jan 31, 2018
Refund of fees
Search/Exam
Jan 18, 2018
English translation of the claims
Search/Exam
Jan 18, 2018
Filing of the translations of the claims
Search/Exam
Jan 18, 2018
French translation of claims
Search/Exam
Jan 18, 2018
Letter concerning fees and payments
Search/Exam
Nov 23, 2017
Payment of fees and costs
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Nov 7, 2017
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Nov 7, 2017
Intention to grant (signatures)
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Nov 7, 2017
Text intended for grant (clean copy)
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Nov 7, 2017
Oct 24, 2017
Sep 28, 2017
Examination started
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Jul 5, 2017
Jul 5, 2017
Amended claims with annotations
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Jul 5, 2017
Jul 5, 2017
Amended description with annotations
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Jul 5, 2017
Amendments received before examination
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Apr 20, 2017
Letter concerning fees and payments
Search/Exam
Apr 20, 2017
Payment of fees and costs
Search/Exam
Jan 16, 2017
Dec 14, 2016
Notification of forthcoming publication
Search/Exam
Jan 8, 2016
Jan 8, 2016
European search opinion
Search/Exam
Jan 8, 2016
European search report
Search/Exam
Jan 8, 2016
Information on Search Strategy
Search/Exam
Dec 22, 2015
Modified abstract
Search/Exam
Dec 17, 2015
Search started
Search/Exam
Sep 21, 2015
Communication to designated inventor
Search/Exam
Sep 21, 2015
Communication to designated inventor
Search/Exam
Jul 29, 2015
Payment of fees and costs
Search/Exam
Jul 29, 2015
Payment of fees and costs
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Jul 16, 2015
Annex
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Jul 16, 2015
Letter accompanying subsequently filed items
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Jul 10, 2015
Abstract
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Jul 10, 2015
Annex
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Jul 10, 2015
Claims
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Jul 10, 2015
Description
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Jul 10, 2015
Designation of inventor
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Jul 10, 2015
Drawings
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Jul 10, 2015
General authorisation
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Jul 10, 2015
Request for grant of a European patent
Search/Exam