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The patent EP3350357 was granted to Chemetall on May 1, 2024. The application was filed on Sep 14, 2016 under application number EP16770231A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| PPG INDUSTRIES | Jan 31, 2025 | F & E PATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE1769582 |
| DESCRIPTION | EP0106389 |
| DESCRIPTION | EP0700452 |
| DESCRIPTION | EP0825280 |
| DESCRIPTION | FR942789 |
| DESCRIPTION | US4148670 |
| DESCRIPTION | US6020030 |
| INTERNATIONAL-SEARCH-REPORT | CN104294258 |
| INTERNATIONAL-SEARCH-REPORT | DE102012017438 |
| INTERNATIONAL-SEARCH-REPORT | EP1200641 |
| INTERNATIONAL-SEARCH-REPORT | EP2532769 |
| INTERNATIONAL-SEARCH-REPORT | US2003213533 |
| INTERNATIONAL-SEARCH-REPORT | WO2005021834 |
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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May 15, 2024
Apr 5, 2024
Decision to grant a European patent
Search/Exam
Mar 21, 2024
(Electronic) Receipt
Search/Exam
Mar 21, 2024
English translation of the claims
Search/Exam
Mar 21, 2024
French translation of claims
Search/Exam
Mar 21, 2024
Letter accompanying subsequently filed items
Search/Exam
Jan 8, 2024
Jan 8, 2024
Jan 4, 2024
Dec 21, 2023
(Electronic) Receipt
Search/Exam
Dec 21, 2023
Letter accompanying subsequently filed items
Search/Exam
Dec 21, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Intention to grant (signatures)
Search/Exam
Dec 19, 2023
Text intended for grant (clean copy)
Search/Exam
Dec 19, 2023
Oct 17, 2022
(Electronic) Receipt
Search/Exam
Oct 17, 2022
Amended claims with annotations
Search/Exam
Oct 17, 2022
Claims
Search/Exam
Oct 17, 2022
Letter accompanying subsequently filed items
Search/Exam
Oct 17, 2022
Aug 4, 2022
Aug 4, 2022
Jul 28, 2022
(Electronic) Receipt
Search/Exam
Jul 28, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 28, 2022
Jul 13, 2022
Annex to the communication
Search/Exam
Jul 13, 2022
Communication from the Examining Division
Search/Exam
Mar 9, 2022
(Electronic) Receipt
Search/Exam
Mar 9, 2022
Amended claims with annotations
Search/Exam
Mar 9, 2022
Claims
Search/Exam
Mar 9, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 9, 2022
Nov 19, 2021
Annex to the communication
Search/Exam
Nov 19, 2021
Communication from the Examining Division
Search/Exam
Nov 10, 2020
(Electronic) Receipt
Search/Exam
Nov 10, 2020
Amended claims with annotations
Search/Exam
Nov 10, 2020
Claims
Search/Exam
Nov 10, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 10, 2020
Sep 14, 2020
Sep 8, 2020
(Electronic) Receipt
Search/Exam
Sep 8, 2020
Apr 30, 2020
Annex to the communication
Search/Exam
Apr 30, 2020
Communication from the Examining Division
Search/Exam
Apr 24, 2020
Examination started
Search/Exam
May 23, 2019
(Electronic) Receipt
Search/Exam
May 23, 2019
Mar 15, 2019
Mar 11, 2019
Decision to allow further processing
Search/Exam
Feb 19, 2019
(Electronic) Receipt
Search/Exam
Feb 19, 2019
Feb 19, 2019
Amended claims with annotations
Search/Exam
Feb 19, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 19, 2019
Request for further processing
Search/Exam
Jan 4, 2019
Jun 27, 2018
Apr 30, 2018
Apr 25, 2018
Communication to designated inventor
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Apr 25, 2018
Communication to designated inventor
Search/Exam
Apr 25, 2018
Communication to designated inventor
Search/Exam
Apr 4, 2018
Mar 5, 2018
Mar 5, 2018
Notification of the recording of a change
Search/Exam
Feb 22, 2018
(Electronic) Receipt
Search/Exam
Feb 22, 2018
Request for entry into the European phase
Search/Exam
Jan 26, 2018
Information on entry into European phase
Search/Exam
Nov 6, 2017
Nov 6, 2017
Notification of the recording of a change
Search/Exam
Sep 8, 2017
Enquiry with the International Bureau
Search/Exam
Aug 1, 2017
Authorisation
Search/Exam
Aug 1, 2017
Letter accompanying subsequently filed items
Search/Exam
Apr 10, 2017
Mar 23, 2017
Copy of the international search report
Search/Exam
Mar 23, 2017
Copy of the international search report
Search/Exam
Mar 23, 2017
Published international application - A1
Search/Exam
Jan 16, 2017
Dec 20, 2016
Dec 20, 2016
Dec 20, 2016
Sep 29, 2016
Sep 14, 2016
(Electronic) Receipt
PCTRO
Sep 14, 2016
Abstract
PCTRO
Sep 14, 2016
Claims
PCTRO
Sep 14, 2016
Description
PCTRO
Sep 14, 2016
Sep 14, 2016