The weekly litigation news digest is live. Subscribe now
The patent EP4036152 was granted to Victrex Manufacturing on Sep 18, 2024. The application was filed on Jan 19, 2016 under application number EP22159023A. 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 |
|---|---|---|---|
| ESSEX SOLUTIONS JAPAN | Jun 17, 2025 | FORSTMEYER | ADMISSIBLE |
| HPW HOLDING | Jun 17, 2025 | KLIMENT & HENHAPEL | ADMISSIBLE |
| SOLVAY SPECIALTY POLYMERS USA | Jun 17, 2025 | FERRI | ADMISSIBLE |
| SYENSQO SPECIALTY POLYMERS USA | Jun 17, 2025 | FERRI | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP20160701843 |
| DESCRIPTION | GB2492087 |
| DESCRIPTION | US2015021067 |
| OPPOSITION | CN104021850 |
| OPPOSITION | CN201302844Y |
| OPPOSITION | CN202816450U |
| OPPOSITION | JP2010174351 |
| OPPOSITION | JPH02250206 |
| OPPOSITION | JPH02250207 |
| OPPOSITION | US2014224522 |
| OPPOSITION | US2015021067 |
| OPPOSITION | US2015027748 |
| OPPOSITION | US4654263 |
| OPPOSITION | US5260104 |
| OPPOSITION | WO2014167401 |
| OTHER | EP3250627 |
| OTHER | JPH02250206 |
| OTHER | US2015021067 |
| SEARCH | EP2808981 |
| SEARCH | GB2492087 |
| SEARCH | JPH02250206 |
| SEARCH | US2010203231 |
| SEARCH | US2011212290 |
| SEARCH | US2015021067 |
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
Get instant alerts for new documents
Nov 7, 2025
Nov 7, 2025
Nov 7, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Sep 19, 2025
Sep 19, 2025
Sep 19, 2025
Sep 19, 2025
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Jul 3, 2025
Jul 3, 2025
Jul 3, 2025
Jul 3, 2025
Jun 18, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Jun 17, 2025
Oct 1, 2024
Aug 22, 2024
Decision to grant a European patent
Search/Exam
Aug 5, 2024
(Electronic) Receipt
Search/Exam
Aug 5, 2024
Filing of the translations of the claims
Search/Exam
Aug 5, 2024
French translation of claims
Search/Exam
Aug 5, 2024
German translation of the claims
Search/Exam
Aug 5, 2024
Letter accompanying subsequently filed items
Search/Exam
Jul 22, 2024
Jul 22, 2024
Jul 22, 2024
Jul 22, 2024
Intention to grant (signatures)
Search/Exam
Jul 22, 2024
Text intended for grant (clean copy)
Search/Exam
Jul 22, 2024
May 14, 2024
(Electronic) Receipt
Search/Exam
May 14, 2024
(Electronic) Receipt
Search/Exam
May 14, 2024
Amended claims with annotations
Search/Exam
May 14, 2024
Amended claims with annotations
Search/Exam
May 14, 2024
Amended description with annotations
Search/Exam
May 14, 2024
Amended description with annotations
Search/Exam
May 14, 2024
Claims
Search/Exam
May 14, 2024
Claims
Search/Exam
May 14, 2024
Description
Search/Exam
May 14, 2024
Description
Search/Exam
May 14, 2024
Letter accompanying subsequently filed items
Search/Exam
May 14, 2024
Letter accompanying subsequently filed items
Search/Exam
May 14, 2024
May 14, 2024
May 6, 2024
Annex to the communication
Search/Exam
May 6, 2024
Communication from the Examining Division
Search/Exam
Mar 28, 2024
Mar 13, 2024
Mar 6, 2024
(Electronic) Receipt
Search/Exam
Mar 6, 2024
Citation filed by a third party
Search/Exam
Mar 6, 2024
Letter accompanying subsequently filed items
Search/Exam
Mar 6, 2024
Observations by third parties
Search/Exam
Jan 31, 2024
(Electronic) Receipt
Search/Exam
Jan 31, 2024
Amended claims with annotations
Search/Exam
Jan 31, 2024
Amended description with annotations
Search/Exam
Jan 31, 2024
Claims
Search/Exam
Jan 31, 2024
Description
Search/Exam
Jan 31, 2024
Letter accompanying subsequently filed items
Search/Exam
Jan 31, 2024
Jan 19, 2024
Annex to the communication
Search/Exam
Jan 19, 2024
Communication from the Examining Division
Search/Exam
Nov 10, 2023
(Electronic) Receipt
Search/Exam
Nov 10, 2023
Amended claims with annotations
Search/Exam
Nov 10, 2023
Amended description with annotations
Search/Exam
Nov 10, 2023
Claims
Search/Exam
Nov 10, 2023
Description
Search/Exam
Nov 10, 2023
Letter accompanying subsequently filed items
Search/Exam
Nov 10, 2023
Nov 10, 2023
Oct 18, 2023
Oct 17, 2023
Annex to the communication
Search/Exam
Oct 17, 2023
Communication from the Examining Division
Search/Exam
Oct 12, 2023
(Electronic) Receipt
Search/Exam
Oct 12, 2023
Letter accompanying subsequently filed items
Search/Exam
Oct 11, 2023
(Electronic) Receipt
Search/Exam
Oct 11, 2023
Filing of the translations of the claims
Search/Exam
Oct 11, 2023
French translation of claims
Search/Exam
Oct 11, 2023
German translation of the claims
Search/Exam
Oct 11, 2023
Oct 11, 2023
Letter accompanying subsequently filed items
Search/Exam
Oct 9, 2023
Oct 9, 2023
Oct 3, 2023
(Electronic) Receipt
Search/Exam
Oct 3, 2023
Letter accompanying subsequently filed items
Search/Exam
Oct 3, 2023
Observations by third parties
Search/Exam
Oct 3, 2023
Patent document filed by a Third party
Search/Exam
Oct 3, 2023
Patent document filed by a Third party
Search/Exam
Sep 20, 2023
Sep 20, 2023
Sep 20, 2023
Sep 20, 2023
Intention to grant (signatures)
Search/Exam
Sep 20, 2023
Text intended for grant (clean copy)
Search/Exam
Sep 20, 2023
Jul 12, 2023
Examination started
Search/Exam
Jun 28, 2023
(Electronic) Receipt
Search/Exam
Jun 28, 2023
Letter accompanying subsequently filed items
Search/Exam
Jun 28, 2023
Observations by third parties
Search/Exam
Jun 2, 2023
Jun 2, 2023
May 26, 2023
(Electronic) Receipt
Search/Exam
May 26, 2023
Letter accompanying subsequently filed items
Search/Exam
May 26, 2023
Non-patent literature filed by a third party
Search/Exam
May 26, 2023
Observations by third parties
Search/Exam
Sep 22, 2022
(Electronic) Receipt
Search/Exam
Sep 22, 2022
Sep 22, 2022
Amended claims with annotations
Search/Exam
Sep 22, 2022
Sep 22, 2022
Amended description with annotations
Search/Exam
Sep 22, 2022
Amendments received before examination
Search/Exam
Sep 22, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 8, 2022
Jul 6, 2022
Notification of forthcoming publication
Search/Exam
Jul 6, 2022
Refund of fees
Search/Exam
Jul 1, 2022
Jul 1, 2022
European search opinion
Search/Exam
Jul 1, 2022
European search report
Search/Exam
Jul 1, 2022
Information on Search Strategy
Search/Exam
Jun 22, 2022
Search started
Search/Exam
Feb 25, 2022
Abstract
Search/Exam
Feb 25, 2022
Feb 25, 2022
Claims
Search/Exam
Feb 25, 2022
Description
Search/Exam
Feb 25, 2022
Designation of inventor
Search/Exam
Feb 25, 2022
Drawings
Search/Exam
Feb 25, 2022
Matter concerning the application
Search/Exam
Feb 25, 2022
Request for grant of a European patent
Search/Exam
Aug 23, 2016