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The patent EP3524913 was granted to Sumitomo Precision Products on Apr 6, 2022. The application was filed on Oct 7, 2016 under application number EP16918324A. 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 |
|---|---|---|---|
| LAIR LIQUIDE | Jan 6, 2023 | - | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2010101617 |
| INTERNATIONAL-SEARCH-REPORT | JP2016503483 |
| INTERNATIONAL-SEARCH-REPORT | JPH05164482 |
| OPPOSITION | EP1088578 |
| OPPOSITION | FR2929369 |
| OPPOSITION | GB2531945 |
| OPPOSITION | JP2000088478 |
| OPPOSITION | US3712073 |
| OPPOSITION | US4170115 |
| OPPOSITION | US4623019 |
| OPPOSITION | WO2014122890 |
| SEARCH | DE102006017434 |
| SEARCH | EP1054225 |
| SEARCH | GB2531945 |
| SEARCH | WO2015141634 |
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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Decision to grant a European patent
Search/Exam
Feb 24, 2022
(Electronic) Receipt
Search/Exam
Feb 24, 2022
Filing of the translations of the claims
Search/Exam
Feb 24, 2022
French translation of claims
Search/Exam
Feb 24, 2022
German translation of the claims
Search/Exam
Feb 24, 2022
Letter accompanying subsequently filed items
Search/Exam
Oct 27, 2021
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Intention to grant (signatures)
Search/Exam
Oct 27, 2021
Text intended for grant (clean copy)
Search/Exam
Oct 27, 2021
Sep 8, 2021
(Electronic) Receipt
Search/Exam
Sep 8, 2021
Amended claims with annotations
Search/Exam
Sep 8, 2021
Claims
Search/Exam
Sep 8, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 8, 2021
May 7, 2021
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Intention to grant (signatures)
Search/Exam
May 7, 2021
Text intended for grant (clean copy)
Search/Exam
May 7, 2021
Jan 8, 2021
Amended claims with annotations
Search/Exam
Jan 8, 2021
Amended description with annotations
Search/Exam
Jan 8, 2021
Claims
Search/Exam
Jan 8, 2021
Description
Search/Exam
Jan 8, 2021
Sep 8, 2020
Annex to the communication
Search/Exam
Sep 8, 2020
Communication from the Examining Division
Search/Exam
Sep 2, 2020
Examination started
Search/Exam
Mar 24, 2020
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Amended claims with annotations
Search/Exam
Mar 24, 2020
Amendments received before examination
Search/Exam
Oct 7, 2019
Sep 17, 2019
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European search opinion
Search/Exam
Sep 17, 2019
Information on Search Strategy
Search/Exam
Sep 17, 2019
Supplementary European search report
Search/Exam
Sep 4, 2019
Search started
Search/Exam
Jul 17, 2019
Notification of forthcoming publication
Search/Exam
May 10, 2019
Communication to designated inventor
Search/Exam
May 10, 2019
Communication to designated inventor
Search/Exam
May 10, 2019
Communication to designated inventor
Search/Exam
May 9, 2019
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Apr 24, 2019
Information regarding early processing
Search/Exam
Apr 9, 2019
Apr 9, 2019
Apr 5, 2019
(Electronic) Receipt
Search/Exam
Apr 5, 2019
Abstract
Search/Exam
Apr 5, 2019
Apr 5, 2019
Amended claims with annotations
Search/Exam
Apr 5, 2019
Amendments received before examination
Search/Exam
Apr 5, 2019
Claims
Search/Exam
Apr 5, 2019
Description
Search/Exam
Apr 5, 2019
Drawings
Search/Exam
Apr 5, 2019
Request for entry into the European phase
Search/Exam
Feb 15, 2019
Information on entry into European phase
Search/Exam
Apr 12, 2018
Copy of the international search report
Search/Exam
Apr 12, 2018
Apr 12, 2018
International publication pamphlet
Search/Exam