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The patent EP3174937 was granted to Victrex Manufacturing on Jun 11, 2025. The application was filed on Jul 29, 2015 under application number EP15747187A. 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 |
|---|---|---|---|
| SOLVAY SPECIALTY POLYMERS USA | Dec 19, 2019 | KRAUS & LEDERER PARTGMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP0184458 |
| INTERNATIONAL-SEARCH-REPORT | US2014072739 |
| INTERNATIONAL-SEARCH-REPORT | US4942216 |
| INTERNATIONAL-SEARCH-REPORT | US8663542 |
| OPPOSITION | EP0184458 |
| OPPOSITION | EP0225750 |
| OPPOSITION | EP2738219 |
| OPPOSITION | WO2015019047 |
| OPPOSITION | WO2015198063 |
| OPPOSITION | WO8501510 |
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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Means of redress
OPPO
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Description
OPPO
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(Electronic) Receipt
Appeal
Jan 31, 2024
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Jan 9, 2024
(Electronic) Receipt
Appeal
Jan 9, 2024
Authorisation
Appeal
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Jul 28, 2023
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Appeal
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Authorisation
Appeal
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Reply to appeal
Appeal
Nov 25, 2021
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Oct 29, 2021
(Electronic) Receipt
Appeal
Oct 29, 2021
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(Electronic) Receipt
Appeal
Aug 26, 2021
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Notice of appeal
Appeal
Jul 12, 2021
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Means of redress
OPPO
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Apr 8, 2019
Feb 28, 2019
Decision to grant a European patent
Search/Exam
Feb 12, 2019
(Electronic) Receipt
Search/Exam
Feb 12, 2019
Filing of the translations of the claims
Search/Exam
Feb 12, 2019
French translation of claims
Search/Exam
Feb 12, 2019
German translation of the claims
Search/Exam
Feb 12, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 12, 2018
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Intention to grant (signatures)
Search/Exam
Oct 12, 2018
Text intended for grant (clean copy)
Search/Exam
Oct 12, 2018
Aug 8, 2018
(Electronic) Receipt
Search/Exam
Aug 8, 2018
Amended claims with annotations
Search/Exam
Aug 8, 2018
Amended description with annotations
Search/Exam
Aug 8, 2018
Claims
Search/Exam
Aug 8, 2018
Description
Search/Exam
Aug 8, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 8, 2018
Apr 17, 2018
Annex to the communication
Search/Exam
Apr 17, 2018
Communication from the Examining Division
Search/Exam
Apr 11, 2018
Examination started
Search/Exam
Sep 13, 2017
(Electronic) Receipt
Search/Exam
Sep 13, 2017
(Electronic) Receipt
Search/Exam
Sep 13, 2017
Sep 13, 2017
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Amended claims with annotations
Search/Exam
Sep 13, 2017
Amended claims with annotations
Search/Exam
Sep 13, 2017
Amendments received before examination
Search/Exam
Sep 13, 2017
Amendments received before examination
Search/Exam
Sep 13, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 13, 2017
Letter accompanying subsequently filed items
Search/Exam
May 10, 2017
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Mar 8, 2017
Communication to designated inventor
Search/Exam
Mar 8, 2017
Communication to designated inventor
Search/Exam
Feb 21, 2017
(Electronic) Receipt
Search/Exam
Feb 21, 2017
Request for entry into the European phase
Search/Exam
Feb 14, 2017
Dec 9, 2016
Information on entry into European phase
Search/Exam
May 13, 2016
May 13, 2016
Notification of the recording of a change
Search/Exam
Feb 22, 2016
Feb 4, 2016
Copy of the international search report
Search/Exam
Feb 4, 2016
Published international application - A1
Search/Exam
Oct 9, 2015
ISR: cited documents
PCTISA
Oct 8, 2015
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Aug 7, 2015
Abstract
PCTISA
Aug 7, 2015
Claims
PCTISA
Aug 7, 2015
Description
PCTISA
Aug 7, 2015
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