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The patent EP1450932 was granted to Lair Liquide on May 23, 2018. The application was filed on Nov 20, 2002 under application number EP02803448A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| AIR PRODUCTS AND CHEMICALS | Feb 22, 2019 | BECK GREENER | - |
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.
Date
Description
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Jan 19, 2024
Refund of fees
Search/Exam
Jan 17, 2024
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Appeal
Jul 5, 2022
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Reply to appeal
Appeal
Apr 14, 2022
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(Electronic) Receipt
Appeal
Feb 18, 2022
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Dec 20, 2021
Refund of fees
Appeal
Dec 14, 2021
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Appeal
Dec 9, 2021
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Notice of appeal
Appeal
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Decision to grant a European patent
Search/Exam
Apr 11, 2018
(Electronic) Receipt
Search/Exam
Apr 11, 2018
English translation of the claims
Search/Exam
Apr 11, 2018
Filing of the translations of the claims
Search/Exam
Apr 11, 2018
German translation of the claims
Search/Exam
Apr 11, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 10, 2018
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Intention to grant (signatures)
Search/Exam
Jan 10, 2018
Text intended for grant (clean copy)
Search/Exam
Jan 10, 2018
Mar 23, 2017
(Electronic) Receipt
Search/Exam
Mar 23, 2017
Abstract
Search/Exam
Mar 23, 2017
Amended claims with annotations
Search/Exam
Mar 23, 2017
Amended description with annotations
Search/Exam
Mar 23, 2017
Claims
Search/Exam
Mar 23, 2017
Description
Search/Exam
Mar 23, 2017
Letter accompanying subsequently filed items
Search/Exam
Mar 23, 2017
Jan 25, 2017
Jan 19, 2017
(Electronic) Receipt
Search/Exam
Jan 19, 2017
Letter accompanying subsequently filed items
Search/Exam
Jan 19, 2017
Sep 19, 2016
Annex to the communication
Search/Exam
Sep 19, 2016
Communication from the Examining Division
Search/Exam
Jul 8, 2014
Mar 7, 2011
Amended claims with annotations
Search/Exam
Mar 7, 2011
Mar 2, 2011
Claims
Search/Exam
Mar 2, 2011
Letter accompanying subsequently filed items
Search/Exam
Mar 2, 2011
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Aug 31, 2010
Annex to the communication
Search/Exam
Aug 31, 2010
Communication from the Examining Division
Search/Exam
May 30, 2007
May 9, 2007
Request for change of address
Search/Exam
Mar 22, 2007
Feb 26, 2007
Request for change of name
Search/Exam
Jul 21, 2004
Jul 13, 2004
Jul 9, 2004
Communication to designated inventor
Search/Exam
Jul 9, 2004
Communication to designated inventor
Search/Exam
Jul 9, 2004
Communication to designated inventor
Search/Exam
Jul 9, 2004
Communication to designated inventor
Search/Exam
Jul 9, 2004
Communication to designated inventor
Search/Exam
May 18, 2004
May 7, 2004
Request for entry into the European phase
Search/Exam
Apr 2, 2004
Information on entry into European phase
Search/Exam
Dec 31, 2003
Dec 11, 2003
Copy of the international search report
Search/Exam
Dec 11, 2003
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PCT demand form
PCT2
May 29, 2003
Published international application - A2
Search/Exam
Jan 24, 2003
Abstract
PCTISA
Jan 24, 2003
Claims
PCTISA
Jan 24, 2003
Description
PCTISA
Jan 24, 2003
Drawings
PCTISA
Jan 24, 2003