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The patent EP3649264 was granted to AIR Liquide Management Services on Aug 21, 2024. The application was filed on Jul 2, 2018 under application number EP18733654A. 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 | Sep 15, 2022 | SSM SANDMAIR | ADMISSIBLE |
| PAUL WURTH | Sep 15, 2022 | OFFICE FREYLINGER | ADMISSIBLE |
| ARCELORMITTAL | Sep 1, 2022 | LAVOIX | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2011116141 |
| INTERNATIONAL-SEARCH-REPORT | WO2011116141 |
| INTERNATIONAL-SEARCH-REPORT | WO2015090900 |
| OPPOSITION | DE102015014234 |
| OPPOSITION | EP3425070 |
| OPPOSITION | JP2012052162 |
| OPPOSITION | WO2011116141 |
| OPPOSITION | WO2015090900 |
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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Decision to grant a European patent
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Filing of the translations of the claims
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French translation of claims
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German translation of the claims
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Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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(Electronic) Receipt
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Amended claims with annotations
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Apr 29, 2021
Claims
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Apr 29, 2021
Claims
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Apr 29, 2021
Letter accompanying subsequently filed items
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Annex to the communication
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Jan 11, 2021
Communication from the Examining Division
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Dec 21, 2020
Examination started
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Amended claims with annotations
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Aug 17, 2020
Letter accompanying subsequently filed items
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Communication to designated inventor
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Communication to designated inventor
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Priority search results copy provided by EPO
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(Electronic) Receipt
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Request for entry into the European phase
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Nov 15, 2019
Information on entry into European phase
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Copy of the international search report
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Jan 10, 2019
Published international application - A1
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(Electronic) Receipt
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Abstract
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Claims
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Description
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