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The patent EP3425070 was granted to AIR Liquide Management Services on Jan 19, 2022. The application was filed on Jul 3, 2017 under application number EP17305860A. 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 |
|---|---|---|---|
| PAUL WURTH | Oct 18, 2022 | OFFICE FREYLINGER | ADMISSIBLE |
| AIR PRODUCTS AND CHEMICALS | Oct 17, 2022 | SSM SANDMAIR | ADMISSIBLE |
| THYSSENKRUPP STEEL EUROPE | Oct 14, 2022 | THYSSENKRUPP STEEL EUROPE | ADMISSIBLE |
| TATA STEEL IJMUIDEN | Sep 22, 2022 | GROUP SERVICES | 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 | US2016348195 |
| DESCRIPTION | WO2015090900 |
| OPPOSITION | DE102015014234 |
| OPPOSITION | EP3124626 |
| OPPOSITION | JP2012052162 |
| OPPOSITION | US2016304978 |
| OPPOSITION | US2016326605 |
| OPPOSITION | WO2011116141 |
| OPPOSITION | WO2015086153 |
| OPPOSITION | WO2015090900 |
| SEARCH | WO2011116141 |
| SEARCH | 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.
Date
Description
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Jul 23, 2024
Refund of fees
Search/Exam
Jul 19, 2024
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(Electronic) Receipt
Appeal
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Withdrawal of an appeal
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Appeal
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Notice of appeal
Appeal
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Filing of the translations of the claims
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French translation of claims
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Description
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(Electronic) Receipt
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Claims
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Annex to the communication
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Communication from the Examining Division
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Sep 24, 2019
Examination started
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Jul 9, 2019
(Electronic) Receipt
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Jul 9, 2019
Letter accompanying subsequently filed items
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Jul 9, 2019
Reply to Written Opinion prepared by the EPO
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Jan 14, 2019
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Notification of forthcoming publication
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Dec 5, 2017
Communication to designated inventor
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Nov 28, 2017
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Nov 28, 2017
Letter concerning the inventor
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European search opinion
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European search report
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Oct 24, 2017
Information on Search Strategy
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