The patent EP2561295 was granted to Lair Liquide on Apr 2, 2025. The application was originally filed on Mar 30, 2011 under application number EP11719312A. 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 |
|---|---|
| DESCRIPTION | JP2001004116 |
| DESCRIPTION | JPH01314809 |
| DESCRIPTION | WO03056044 |
| DESCRIPTION | WO2004083469 |
| DESCRIPTION | WO2005024398 |
| INTERNATIONAL-SEARCH-REPORT | JP2001004116 |
| INTERNATIONAL-SEARCH-REPORT | JPH01314809 |
| OPPOSITION | EP0553632 |
| OPPOSITION | EP2159525 |
| OPPOSITION | ES2207389 |
| OPPOSITION | US6247416 |
| OPPOSITION | WO2006117336 |
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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OPPO
Dec 15, 2021
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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May 30, 2018
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Decision to grant a European patent
Search/Exam
Apr 4, 2018
(Electronic) Receipt
Search/Exam
Apr 4, 2018
English translation of the claims
Search/Exam
Apr 4, 2018
Filing of the translations of the claims
Search/Exam
Apr 4, 2018
German translation of the claims
Search/Exam
Apr 4, 2018
Letter accompanying subsequently filed items
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Intention to grant (signatures)
Search/Exam
Dec 8, 2017
Text intended for grant (clean copy)
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Dec 8, 2017
Nov 29, 2017
Oct 27, 2017
(Electronic) Receipt
Search/Exam
Oct 27, 2017
Amended claims with annotations
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Oct 27, 2017
Claims
Search/Exam
Oct 27, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 27, 2017
Sep 27, 2017
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Sep 27, 2017
Intention to grant (signatures)
Search/Exam
Sep 27, 2017
Text intended for grant (clean copy)
Search/Exam
Sep 27, 2017
Sep 5, 2017
Examination started
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May 16, 2017
Jan 30, 2013
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Communication to designated inventor
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Dec 3, 2012
Communication to designated inventor
Search/Exam
Nov 28, 2012
Priority search results copy provided by EPO
Search/Exam
Nov 6, 2012
Sep 27, 2012
(Electronic) Receipt
Search/Exam
Sep 27, 2012
Sep 27, 2012
Amended claims with annotations
Search/Exam
Sep 27, 2012
Amendments received before examination
Search/Exam
Sep 27, 2012
Request for entry into the European phase
Search/Exam
Aug 31, 2012
Information on entry into European phase
Search/Exam
Nov 16, 2011
Oct 27, 2011
Copy of the international search report
Search/Exam
Oct 27, 2011
Copy of the international search report
Search/Exam
Oct 27, 2011
Published international application - A1
Search/Exam
Aug 25, 2011
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May 5, 2011
Mar 30, 2011
Abstract
PCTISA
Mar 30, 2011
Claims
PCTISA
Mar 30, 2011
Description
PCTISA
Mar 30, 2011
Drawings
PCTISA