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The patent EP3536760 was granted to Daikin Industries on Sep 4, 2024. The application was filed on Jan 22, 2016 under application number EP19164021A. 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 |
|---|---|---|---|
| ARKEMA FRANCE | Aug 19, 2022 | ARKEMA PATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2869038B |
| DESCRIPTION | US8168077 |
| OPPOSITION | EP0451692 |
| OPPOSITION | EP0509673 |
| OPPOSITION | EP0811670 |
| OPPOSITION | EP2308941 |
| OPPOSITION | JPH06256757 |
| OPPOSITION | US2009278075 |
| OPPOSITION | WO2005049759 |
| OPPOSITION | WO2009105512 |
| OPPOSITION | WO2010042781 |
| OPPOSITION | WO2010129416 |
| OPPOSITION | WO2010129461 |
| OPPOSITION | WO2015083834 |
| SEARCH | EP0811670 |
| SEARCH | JP2014198854 |
| SEARCH | JPH06256757 |
| SEARCH | US2013193369 |
| SEARCH | US6187219 |
| SEARCH | US6783691 |
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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Aug 8, 2024
Aug 8, 2024
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May 23, 2024
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Refund of fees
OPPO
May 7, 2024
May 7, 2024
May 3, 2024
May 1, 2024
(Electronic) Receipt
Appeal
May 1, 2024
May 1, 2024
Withdrawal of an appeal
Appeal
Apr 18, 2024
Apr 15, 2024
(Electronic) Receipt
Appeal
Apr 15, 2024
Apr 15, 2024
Apr 12, 2024
Apr 12, 2024
Apr 4, 2024
(Electronic) Receipt
Appeal
Apr 4, 2024
Apr 4, 2024
Notice of appeal
Appeal
Feb 5, 2024
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Means of redress
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Dec 7, 2021
Oct 28, 2021
Decision to grant a European patent
Search/Exam
Oct 13, 2021
(Electronic) Receipt
Search/Exam
Oct 13, 2021
Filing of the translations of the claims
Search/Exam
Oct 13, 2021
French translation of claims
Search/Exam
Oct 13, 2021
German translation of the claims
Search/Exam
Oct 13, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 16, 2021
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Intention to grant (signatures)
Search/Exam
Jul 16, 2021
Text intended for grant (clean copy)
Search/Exam
Jul 16, 2021
Mar 24, 2021
(Electronic) Receipt
Search/Exam
Mar 24, 2021
Amended description with annotations
Search/Exam
Mar 24, 2021
Description
Search/Exam
Mar 24, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 24, 2021
Feb 10, 2021
Annex to the communication
Search/Exam
Feb 10, 2021
Communication from the Examining Division
Search/Exam
Feb 3, 2021
Examination started
Search/Exam
Feb 3, 2020
(Electronic) Receipt
Search/Exam
Feb 3, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 3, 2020
Reply to Written Opinion prepared by the EPO
Search/Exam
Dec 3, 2019
(Electronic) Receipt
Search/Exam
Dec 3, 2019
Letter accompanying subsequently filed items
Search/Exam
Sep 16, 2019
Aug 21, 2019
Refund of fees
Search/Exam
Aug 14, 2019
Notification of forthcoming publication
Search/Exam
Jul 26, 2019
Jul 26, 2019
European search opinion
Search/Exam
Jul 26, 2019
European search report
Search/Exam
Jul 26, 2019
Information on Search Strategy
Search/Exam
Jul 11, 2019
Search started
Search/Exam
May 13, 2019
Communication to designated inventor
Search/Exam
May 13, 2019
Communication to designated inventor
Search/Exam
May 13, 2019
Communication to designated inventor
Search/Exam
May 13, 2019
Communication to designated inventor
Search/Exam
Mar 20, 2019
Abstract
Search/Exam
Mar 20, 2019
Mar 20, 2019
Claims
Search/Exam
Mar 20, 2019
Description
Search/Exam
Mar 20, 2019
Designation of inventor
Search/Exam
Mar 20, 2019
Drawings
Search/Exam
Mar 20, 2019
Request for grant of a European patent
Search/Exam
Sep 14, 2016