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The patent EP3784974 was granted to Linde on Jan 15, 2025. The application was filed on Apr 17, 2019 under application number EP19720366A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| LAIR LIQUIDE | Dec 1, 2022 | AIR LIQUIDE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2014056587 |
| INTERNATIONAL-SEARCH-REPORT | DE102009049479 |
| INTERNATIONAL-SEARCH-REPORT | DE102014018825 |
| INTERNATIONAL-SEARCH-REPORT | WO2014056587 |
| OPPOSITION | DE102016000246 |
| OPPOSITION | JP2014169809 |
| OPPOSITION | US2012082182 |
| OPPOSITION | US2015241141 |
| OPPOSITION | US2015369548 |
| OPPOSITION | US2018045471 |
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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Mar 15, 2022
Feb 3, 2022
Decision to grant a European patent
Search/Exam
Jan 19, 2022
English translation of the claims
Search/Exam
Jan 19, 2022
Filing of the translations of the claims
Search/Exam
Jan 19, 2022
French translation of claims
Search/Exam
Jan 19, 2022
Letter concerning fees and payments
Search/Exam
Oct 19, 2021
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Oct 19, 2021
Intention to grant (signatures)
Search/Exam
Oct 19, 2021
Text intended for grant (clean copy)
Search/Exam
Oct 19, 2021
Sep 30, 2021
Examination started
Search/Exam
Aug 24, 2021
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Feb 8, 2021
Communication to designated inventor
Search/Exam
Feb 3, 2021
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Letter concerning the inventor
Search/Exam
Jan 26, 2021
Jan 5, 2021
Letter which had not been notified
Search/Exam
Dec 4, 2020
Dec 2, 2020
Communication to designated inventor
Search/Exam
Dec 2, 2020
Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
Dec 2, 2020
Communication to designated inventor
Search/Exam
Dec 2, 2020
Communication to designated inventor
Search/Exam
Dec 2, 2020
Communication to designated inventor
Search/Exam
Dec 2, 2020
Communication to designated inventor
Search/Exam
Nov 9, 2020
Nov 5, 2020
Information regarding early processing
Search/Exam
Oct 22, 2020
Request for entry into the European phase
Search/Exam
Sep 4, 2020
Information on entry into European phase
Search/Exam
Jul 23, 2020
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Jun 18, 2020
Notification of the recording of a change
Search/Exam
Nov 19, 2019
Oct 31, 2019
Copy of the international search report
Search/Exam
Oct 31, 2019
Copy of the international search report
Search/Exam
Oct 31, 2019
Published international application - A1
Search/Exam
Jul 18, 2019
ISR: cited documents
PCTISA
Jul 18, 2019
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Apr 17, 2019
Abstract
PCTRO
Apr 17, 2019
Claims
PCTRO
Apr 17, 2019
Description
PCTRO
Apr 17, 2019
Drawings
PCTRO
Apr 17, 2019