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The patent EP3615588 was granted to Solvay Specialty Polymers USA on Jun 12, 2024. The application was filed on Mar 30, 2018 under application number EP18713282A. 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 |
|---|---|---|---|
| VICTREX MANUFACTURING | Mar 6, 2025 | GURUN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | GB2542704 |
| INTERNATIONAL-SEARCH-REPORT | US2015251353 |
| INTERNATIONAL-SEARCH-REPORT | US2016297142 |
| INTERNATIONAL-SEARCH-REPORT | US2017096576 |
| INTERNATIONAL-SEARCH-REPORT | US5418035 |
| OPPOSITION | GB2542704 |
| OPPOSITION | US2016297142 |
| OPPOSITION | US2016297935 |
| OPPOSITION | US2017096576 |
| OPPOSITION | US2018200955 |
| OPPOSITION | WO2017008789 |
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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Annexes in respect of a client data request
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Sep 12, 2025
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Letter accompanying subsequently filed items
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Sep 12, 2025
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May 16, 2024
Decision to grant a European patent
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May 2, 2024
(Electronic) Receipt
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May 2, 2024
Filing of the translations of the claims
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May 2, 2024
French translation of claims
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May 2, 2024
German translation of the claims
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May 2, 2024
Letter accompanying subsequently filed items
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Feb 8, 2024
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Feb 1, 2024
Letter accompanying subsequently filed items
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Feb 1, 2024
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Intention to grant (signatures)
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Jan 3, 2024
Text intended for grant (clean copy)
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Jan 3, 2024
Dec 13, 2023
Dec 13, 2023
Aug 18, 2023
Refund of fees
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Aug 17, 2023
Decision to allow further processing
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Aug 10, 2023
(Electronic) Receipt
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Aug 10, 2023
Amended claims with annotations
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Aug 10, 2023
Amended description with annotations
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Aug 10, 2023
Claims
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Aug 10, 2023
Description
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Aug 10, 2023
Letter accompanying subsequently filed items
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Aug 10, 2023
Request for further processing
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Jul 30, 2023
Amended claims with annotations
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Jul 30, 2023
Amended description with annotations
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Jul 30, 2023
Claims
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Jul 30, 2023
Description
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Jul 30, 2023
Jun 7, 2023
Dec 15, 2022
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Nov 3, 2022
Annex to the communication
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Nov 3, 2022
Communication from the Examining Division
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Oct 28, 2022
Examination started
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Jan 28, 2022
Jan 25, 2022
Letter accompanying subsequently filed items
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Jan 25, 2022
Jun 15, 2020
Communication to designated inventor
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Jun 4, 2020
(Electronic) Receipt
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Jun 4, 2020
Letter accompanying subsequently filed items
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Jun 4, 2020
Letter concerning the inventor
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Apr 29, 2020
(Electronic) Receipt
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Apr 29, 2020
Apr 29, 2020
Amended claims with annotations
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Apr 29, 2020
Amendments received before examination
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Apr 29, 2020
Apr 29, 2020
Letter accompanying subsequently filed items
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Apr 29, 2020
Apr 17, 2020
Letter which had not been notified
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Feb 5, 2020
Dec 4, 2019
Dec 2, 2019
Communication to designated inventor
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Dec 2, 2019
Communication to designated inventor
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Dec 2, 2019
Communication to designated inventor
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Dec 2, 2019
Communication to designated inventor
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Nov 27, 2019
Priority search results copy provided by EPO
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Nov 11, 2019
Oct 31, 2019
(Electronic) Receipt
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Oct 31, 2019
Request for entry into the European phase
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Sep 6, 2019
Information on entry into European phase
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Aug 20, 2019
Aug 20, 2019
Notification of the recording of a change
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Nov 20, 2018
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Nov 1, 2018
Copy of the international search report
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Nov 1, 2018
Published international application - A1
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May 18, 2018
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Apr 20, 2018
(Electronic) Receipt
PCTRO
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Mar 30, 2018
(Electronic) Receipt
PCTRO
Mar 30, 2018
Abstract
PCTRO
Mar 30, 2018
Claims
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Mar 30, 2018
Description
PCTRO
Mar 30, 2018
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