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The patent EP3206487 was granted to Lair Liquide Socit Anonyme Pour Letude ET Lexploitation DES Procds Georges Claude on Dec 29, 2021. The application was filed on Oct 8, 2015 under application number EP15781614A. 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 |
|---|---|---|---|
| BODE CHEMIE | Sep 29, 2022 | TER MEER STEINMEISTER & PARTNER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | EP1683416 |
| EXAMINATION | US2001033854 |
| EXAMINATION | US2003139307 |
| EXAMINATION | US2012208894 |
| INTERNATIONAL-SEARCH-REPORT | EP0375827 |
| INTERNATIONAL-SEARCH-REPORT | EP2462806 |
| INTERNATIONAL-SEARCH-REPORT | US2012214878 |
| INTERNATIONAL-SEARCH-REPORT | WO2004062589 |
| INTERNATIONAL-SEARCH-REPORT | WO2008034224 |
| INTERNATIONAL-SEARCH-REPORT | WO2009088894 |
| INTERNATIONAL-SEARCH-REPORT | WO2010002880 |
| INTERNATIONAL-SEARCH-REPORT | WO2012084164 |
| OPPOSITION | EP1683416 |
| OPPOSITION | EP1685854 |
| OPPOSITION | US2012208894 |
| OPPOSITION | US2012214878 |
| OPPOSITION | US4082852 |
| OPPOSITION | WO0047184 |
| OPPOSITION | WO0141727 |
| OPPOSITION | WO2006066888 |
| OPPOSITION | WO2010147868 |
| OPPOSITION | WO2011072728 |
| OPPOSITION | WO2012084164 |
| OPPOSITION | WO2013052759 |
| OPPOSITION | WO9735475 |
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, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Mar 27, 2025
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(Electronic) Receipt
Appeal
Dec 27, 2024
Dec 27, 2024
Reply to appeal
Appeal
Dec 24, 2024
(Electronic) Receipt
Appeal
Dec 24, 2024
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Reply to appeal
Appeal
Aug 29, 2024
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(Electronic) Receipt
Appeal
Aug 23, 2024
(Electronic) Receipt
Appeal
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Appeal
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Appeal
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Appeal
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Appeal
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Appeal
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Appeal
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Jul 2, 2024
Refund of fees
Appeal
Jun 28, 2024
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Jun 24, 2024
(Electronic) Receipt
Appeal
Jun 24, 2024
(Electronic) Receipt
Appeal
Jun 24, 2024
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Notice of appeal
Appeal
Jun 24, 2024
Notice of appeal
Appeal
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Jan 12, 2022
Dec 2, 2021
Decision to grant a European patent
Search/Exam
Nov 15, 2021
(Electronic) Receipt
Search/Exam
Nov 15, 2021
Filing of the translations of the claims
Search/Exam
Nov 15, 2021
French translation of claims
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Nov 15, 2021
German translation of the claims
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Jul 6, 2021
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Intention to grant (signatures)
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Jul 6, 2021
Text intended for grant (clean copy)
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Jul 6, 2021
Jun 30, 2021
Annex to the communication
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Jun 30, 2021
Jun 30, 2021
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May 5, 2021
Amended description with annotations
Search/Exam
Apr 8, 2021
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Apr 1, 2021
(Electronic) Receipt
Search/Exam
Apr 1, 2021
Amended claims with annotations
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Apr 1, 2021
Amended claims with annotations
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Apr 1, 2021
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Apr 1, 2021
Claims
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Apr 1, 2021
Claims
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Apr 1, 2021
Claims
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Apr 1, 2021
Letter accompanying subsequently filed items
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Apr 1, 2021
Mar 30, 2021
Mar 29, 2021
(Electronic) Receipt
Search/Exam
Mar 29, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 29, 2021
Dec 3, 2020
(Electronic) Receipt
Search/Exam
Dec 3, 2020
Advice of delivery
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Dec 3, 2020
Letter accompanying subsequently filed items
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Nov 13, 2020
Acknowledgement of a document
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Nov 13, 2020
Annex to the communication
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Nov 13, 2020
Nov 13, 2020
Summons to attend oral proceedings
Search/Exam
Nov 10, 2020
Nov 5, 2020
(Electronic) Receipt
Search/Exam
Nov 5, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 5, 2020
Nov 3, 2020
Letter accompanying subsequently filed items
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Nov 3, 2020
Oct 21, 2020
Acknowledgement of a document
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Oct 21, 2020
Annex to the communication
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Oct 21, 2020
Summons to attend oral proceedings
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Oct 13, 2020
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(Electronic) Receipt
Search/Exam
Sep 22, 2020
Amended claims with annotations
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Sep 22, 2020
Amended claims with annotations
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Sep 22, 2020
Amended description with annotations
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Sep 22, 2020
Amended description with annotations
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Sep 22, 2020
Claims
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Sep 22, 2020
Claims
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Sep 22, 2020
Description
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Sep 22, 2020
Description
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Sep 22, 2020
Letter accompanying subsequently filed items
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Sep 22, 2020
May 18, 2020
Advice of delivery
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May 11, 2020
Acknowledgement of a document
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May 11, 2020
Annex to the communication
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May 11, 2020
Summons to attend oral proceedings
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Apr 25, 2020
Apr 6, 2020
(Electronic) Receipt
Search/Exam
Apr 6, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 6, 2020
Oral proceedings: reply to date proposed
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Mar 26, 2020
Advice of delivery
Search/Exam
Mar 13, 2020
Acknowledgement of a document
Search/Exam
Mar 13, 2020
Annex to the communication
Search/Exam
Mar 13, 2020
Summons to attend oral proceedings
Search/Exam
Nov 11, 2019
Decision to allow further processing
Search/Exam
Oct 24, 2019
(Electronic) Receipt
Search/Exam
Oct 24, 2019
Amended claims with annotations
Search/Exam
Oct 24, 2019
Claims
Search/Exam
Oct 24, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 24, 2019
Request for further processing
Search/Exam
Aug 22, 2019
May 15, 2019
May 6, 2019
May 3, 2019
(Electronic) Receipt
Search/Exam
May 3, 2019
Annexes in respect of a client data request
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May 3, 2019
Letter accompanying subsequently filed items
Search/Exam
May 3, 2019
Apr 30, 2019
(Electronic) Receipt
Search/Exam
Apr 30, 2019
Letter accompanying subsequently filed items
Search/Exam
Apr 30, 2019
Jan 15, 2019
Annex to the communication
Search/Exam
Jan 15, 2019
Communication from the Examining Division
Search/Exam
Jan 10, 2019
Examination started
Search/Exam
Jun 1, 2018
(Electronic) Receipt
Search/Exam
Jun 1, 2018
Letter accompanying subsequently filed items
Search/Exam
Jun 1, 2018
Priority search results
Search/Exam
Jun 1, 2018
Apr 4, 2018
Mar 29, 2018
Decision to allow further processing
Search/Exam
Mar 19, 2018
(Electronic) Receipt
Search/Exam
Mar 19, 2018
Mar 19, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 19, 2018
Request for further processing
Search/Exam
Jan 19, 2018
Jul 26, 2017
May 29, 2017
May 24, 2017
Communication to designated inventor
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May 24, 2017
Communication to designated inventor
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May 24, 2017
Communication to designated inventor
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May 24, 2017
Communication to designated inventor
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May 2, 2017
Mar 24, 2017
(Electronic) Receipt
Search/Exam
Mar 24, 2017
Request for entry into the European phase
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Feb 24, 2017
Information on entry into European phase
Search/Exam
May 18, 2016
Apr 21, 2016
Copy of the international search report
Search/Exam
Apr 21, 2016
Published international application - A1
Search/Exam
Dec 8, 2015
Dec 8, 2015
Dec 8, 2015
Oct 28, 2015
Oct 8, 2015
(Electronic) Receipt
PCTRO
Oct 8, 2015
Abstract
PCTRO
Oct 8, 2015
Claims
PCTRO
Oct 8, 2015
Description
PCTRO
Oct 8, 2015
Description
Appeal
Oct 8, 2015
Oct 8, 2015
Drawings
PCTRO
Oct 8, 2015