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The patent EP3168332 was granted to Okuno Chemical Industries on Jul 26, 2023. The application was filed on Jan 29, 2016 under application number EP16764540A. 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 |
|---|---|---|---|
| ATOTECH DEUTSCHLAND | Dec 10, 2019 | MKS ASSOCIATION | ADMISSIBLE |
| MACDERMID | Dec 10, 2019 | JENKINS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2002363761 |
| INTERNATIONAL-SEARCH-REPORT | JP2009030151 |
| INTERNATIONAL-SEARCH-REPORT | JPS5479131 |
| INTERNATIONAL-SEARCH-REPORT | JPS5662999 |
| INTERNATIONAL-SEARCH-REPORT | JPS58213900 |
| INTERNATIONAL-SEARCH-REPORT | US3912603 |
| OPPOSITION | CN1626703 |
| OPPOSITION | DE19829274 |
| OPPOSITION | DE2146828 |
| OPPOSITION | DE2363352 |
| OPPOSITION | EP0913502 |
| OPPOSITION | EP2050841 |
| OPPOSITION | EP2514855 |
| OPPOSITION | GB2079321 |
| OPPOSITION | JP2001207276 |
| OPPOSITION | US2005109734 |
| OPPOSITION | US2007254479 |
| OPPOSITION | US2185858 |
| OPPOSITION | US2649361 |
| OPPOSITION | US3819494 |
| OPPOSITION | US4128463 |
| OPPOSITION | US4233124 |
| OPPOSITION | US4264420 |
| OPPOSITION | US4548791 |
| OPPOSITION | US4606797 |
| OPPOSITION | US4608091 |
| OPPOSITION | US5639360 |
| OPPOSITION | US6899803 |
| OPPOSITION | US8709277 |
| OPPOSITION | WO8204072 |
| SEARCH | EP2514855 |
| SEARCH | US2007254479 |
| SEARCH | US4264420 |
| SEARCH | US4554049 |
| SEARCH | US4608091 |
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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Jun 29, 2023
Jun 29, 2023
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Jun 7, 2023
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Claims
Appeal
Dec 15, 2022
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Nov 10, 2022
Nov 7, 2022
(Electronic) Receipt
Appeal
Nov 7, 2022
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Oct 26, 2022
Oct 26, 2022
Oct 21, 2022
(Electronic) Receipt
Appeal
Oct 21, 2022
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Oct 14, 2022
Oct 10, 2022
(Electronic) Receipt
Appeal
Oct 10, 2022
Oct 10, 2022
Sep 13, 2022
Sep 13, 2022
Sep 13, 2022
Aug 17, 2022
Aug 17, 2022
Aug 10, 2022
(Electronic) Receipt
Appeal
Aug 10, 2022
Aug 10, 2022
Aug 1, 2022
Advice of delivery
Appeal
Jul 25, 2022
Jul 25, 2022
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Jul 20, 2022
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Feb 11, 2022
(Electronic) Receipt
Appeal
Feb 11, 2022
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(Electronic) Receipt
Appeal
Nov 2, 2021
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Reply to appeal
Appeal
Jul 6, 2021
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Jul 1, 2021
(Electronic) Receipt
Appeal
Jul 1, 2021
Jul 1, 2021
May 6, 2021
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Apr 28, 2021
(Electronic) Receipt
Appeal
Apr 28, 2021
Apr 28, 2021
Notice of appeal
Appeal
Mar 9, 2021
Mar 8, 2021
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Means of redress
OPPO
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Mar 25, 2019
Feb 14, 2019
Decision to grant a European patent
Search/Exam
Jan 16, 2019
Jan 14, 2019
Dec 27, 2018
Filing of the translations of the claims
Search/Exam
Dec 27, 2018
French translation of claims
Search/Exam
Dec 27, 2018
German translation of the claims
Search/Exam
Oct 9, 2018
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Oct 9, 2018
Intention to grant (signatures)
Search/Exam
Oct 9, 2018
Text intended for grant (clean copy)
Search/Exam
Oct 9, 2018
Aug 20, 2018
Examination started
Search/Exam
Jun 4, 2018
Jun 4, 2018
Amended claims with annotations
Search/Exam
Jun 4, 2018
Jun 4, 2018
Amended description with annotations
Search/Exam
Jun 4, 2018
Amendments received before examination
Search/Exam
Dec 15, 2017
Nov 28, 2017
Nov 28, 2017
European search opinion
Search/Exam
Nov 28, 2017
Information on Search Strategy
Search/Exam
Nov 28, 2017
Supplementary European search report
Search/Exam
Nov 15, 2017
Search started
Search/Exam
Oct 18, 2017
Communication to designated inventor
Search/Exam
Oct 18, 2017
Communication to designated inventor
Search/Exam
Sep 22, 2017
Sep 22, 2017
Apr 20, 2017
Notification of forthcoming publication
Search/Exam
Feb 24, 2017
Feb 9, 2017
Payment of fees and costs
Search/Exam
Feb 8, 2017
Matter concerning the application
Search/Exam
Feb 7, 2017
Abstract
Search/Exam
Feb 7, 2017
Feb 7, 2017
Amendments received before examination
Search/Exam
Feb 7, 2017
Claims
Search/Exam
Feb 7, 2017
Description
Search/Exam
Feb 7, 2017
Request for entry into the European phase
Search/Exam
Feb 7, 2017
Request for grant of a European patent
Search/Exam
Oct 12, 2016
Oct 5, 2016
Notification of election of EPO
Search/Exam
Sep 22, 2016
Copy of the international search report
Search/Exam
Sep 22, 2016
Sep 22, 2016
International publication pamphlet
Search/Exam