The weekly litigation news digest is live. Subscribe now
The patent EP2993190 was granted to Sumitomo Seika Chemicals on May 4, 2022. The application was filed on Nov 4, 2014 under application number EP14882126A. 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 |
|---|---|---|---|
| NIPPON SHOKUBAI | Oct 30, 2018 | HOFFMANN EITLE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JPH09136966 |
| DESCRIPTION | JPH11347402 |
| INTERNATIONAL-SEARCH-REPORT | JP2003246810 |
| INTERNATIONAL-SEARCH-REPORT | JP2003246812 |
| INTERNATIONAL-SEARCH-REPORT | JP2012012482 |
| INTERNATIONAL-SEARCH-REPORT | JP2012031292 |
| INTERNATIONAL-SEARCH-REPORT | WO2012081355 |
| OPPOSITION | EP0744435 |
| OPPOSITION | EP0942014 |
| OPPOSITION | EP1275669 |
| OPPOSITION | EP2692744 |
| OPPOSITION | EP2700663 |
| OPPOSITION | EP2752430 |
| OPPOSITION | EP2993191 |
| OPPOSITION | EP3168241 |
| OPPOSITION | JP2014143716 |
| OPPOSITION | JP2014143717 |
| OPPOSITION | JP2014143718 |
| OPPOSITION | JP2014223723 |
| OPPOSITION | JPH11147902 |
| OPPOSITION | US2008280154 |
| OPPOSITION | US2009326162 |
| OPPOSITION | WO2004085496 |
| OPPOSITION | WO2006014031 |
| OPPOSITION | WO2016006131 |
| OTHER | EP0942014 |
| OTHER | EP1108745 |
| OTHER | EP1882701 |
| OTHER | EP2700663 |
| OTHER | US2004110006 |
| OTHER | US2009275470 |
| OTHER | WO03051940 |
| OTHER | WO2004084962 |
| OTHER | WO2004085496 |
| OTHER | WO2006109882 |
| SEARCH | EP0780424 |
| SEARCH | EP1882701 |
| SEARCH | EP2700663 |
| SEARCH | EP2993189 |
| SEARCH | EP2993191 |
| SEARCH | EP2998325 |
| SEARCH | JP2012031292 |
| SEARCH | JPH11335404 |
| SEARCH | US2004110006 |
| SEARCH | WO2004085496 |
| SEARCH | WO2006109882 |
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
Apr 7, 2022
Apr 7, 2022
Apr 4, 2022
Mar 22, 2022
Mar 22, 2022
Mar 22, 2022
Mar 22, 2022
Mar 22, 2022
Jan 24, 2022
Jan 24, 2022
Jan 24, 2022
Jan 17, 2022
Jan 13, 2022
Oct 5, 2021
Oct 5, 2021
Oct 5, 2021
Oct 5, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Means of redress
OPPO
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Sep 16, 2021
Sep 16, 2021
Aug 2, 2021
Aug 2, 2021
Aug 2, 2021
Aug 2, 2021
Aug 2, 2021
Aug 2, 2021
Aug 2, 2021
Means of redress
OPPO
Aug 2, 2021
Aug 2, 2021
Aug 2, 2021
Aug 2, 2021
Aug 2, 2021
Aug 2, 2021
Aug 2, 2021
Jul 2, 2021
Jul 1, 2021
Jun 29, 2021
Jun 25, 2021
Jun 25, 2021
Jun 25, 2021
Jun 23, 2021
Jun 23, 2021
Jun 23, 2021
Jun 23, 2021
Jun 23, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Mar 12, 2021
Mar 12, 2021
Nov 19, 2020
Nov 19, 2020
Nov 19, 2020
Oct 26, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 1, 2020
Oct 1, 2020
Oct 1, 2020
Sep 7, 2020
Sep 7, 2020
Jul 29, 2020
Jul 28, 2020
Jul 23, 2020
Jul 23, 2020
Jul 23, 2020
Jul 23, 2020
Jul 23, 2020
Jul 23, 2020
Mar 25, 2020
Mar 25, 2020
Mar 19, 2020
Mar 19, 2020
Mar 19, 2020
Mar 19, 2020
Mar 19, 2020
Mar 19, 2020
Feb 6, 2020
Feb 4, 2020
Jan 30, 2020
Jan 30, 2020
Jan 30, 2020
Jan 30, 2020
Jan 30, 2020
Jan 30, 2020
Jan 30, 2020
Jan 30, 2020
Jan 30, 2020
Jan 30, 2020
Jan 30, 2020
Jan 30, 2020
Jan 30, 2020
Jan 30, 2020
Jan 30, 2020
Jan 29, 2020
Jan 29, 2020
Jan 29, 2020
Jan 29, 2020
Jan 29, 2020
Jan 29, 2020
Jan 29, 2020
Jan 29, 2020
Jan 29, 2020
Jan 29, 2020
Sep 5, 2019
Aug 28, 2019
Aug 26, 2019
Aug 26, 2019
Aug 26, 2019
Aug 26, 2019
Aug 26, 2019
Aug 26, 2019
Jul 17, 2019
Jul 11, 2019
Jul 11, 2019
Jul 11, 2019
Jul 11, 2019
Jul 11, 2019
Jul 11, 2019
Jul 11, 2019
Apr 1, 2019
Mar 25, 2019
Mar 25, 2019
Mar 25, 2019
Mar 25, 2019
Mar 25, 2019
Mar 25, 2019
Mar 25, 2019
Mar 25, 2019
Mar 25, 2019
Mar 25, 2019
Mar 25, 2019
Mar 25, 2019
Mar 25, 2019
Nov 15, 2018
Nov 15, 2018
Nov 8, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Oct 30, 2018
Feb 16, 2018
Jan 5, 2018
Decision to grant a European patent
Search/Exam
Dec 13, 2017
(Electronic) Receipt
Search/Exam
Dec 13, 2017
Filing of the translations of the claims
Search/Exam
Dec 13, 2017
French translation of claims
Search/Exam
Dec 13, 2017
German translation of the claims
Search/Exam
Dec 13, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 2, 2017
Oct 2, 2017
Oct 2, 2017
Intention to grant (signatures)
Search/Exam
Oct 2, 2017
Text intended for grant (clean copy)
Search/Exam
Oct 2, 2017
Jun 8, 2017
(Electronic) Receipt
Search/Exam
Jun 8, 2017
Amended claims with annotations
Search/Exam
Jun 8, 2017
Claims
Search/Exam
Jun 8, 2017
Letter accompanying subsequently filed items
Search/Exam
Jun 8, 2017
May 31, 2017
(Electronic) Receipt
Search/Exam
May 31, 2017
Letter accompanying subsequently filed items
Search/Exam
May 31, 2017
Letter concerning the priority
Search/Exam
May 31, 2017
Translation of priority document
Search/Exam
May 31, 2017
Translation of priority document
Search/Exam
Feb 15, 2017
Communication to designated inventor
Search/Exam
Feb 15, 2017
Communication to designated inventor
Search/Exam
Feb 15, 2017
Communication to designated inventor
Search/Exam
Feb 15, 2017
Communication to designated inventor
Search/Exam
Feb 1, 2017
Annex to the communication
Search/Exam
Feb 1, 2017
Communication from the Examining Division
Search/Exam
Feb 1, 2017
Jan 30, 2017
Jan 30, 2017
Jan 13, 2017
Citation filed by a third party
Search/Exam
Jan 13, 2017
Citation filed by a third party
Search/Exam
Jan 13, 2017
Citation filed by a third party
Search/Exam
Jan 13, 2017
Citation filed by a third party
Search/Exam
Jan 13, 2017
Citation filed by a third party
Search/Exam
Jan 13, 2017
Citation filed by a third party
Search/Exam
Jan 13, 2017
Citation filed by a third party
Search/Exam
Jan 13, 2017
Citation filed by a third party
Search/Exam
Jan 13, 2017
Citation filed by a third party
Search/Exam
Jan 13, 2017
Citation filed by a third party
Search/Exam
Jan 13, 2017
Observations by third parties
Search/Exam
Nov 30, 2016
Nov 30, 2016
Information on Search Strategy
Search/Exam
Nov 30, 2016
Supplementary European search report
Search/Exam
Nov 10, 2016
Search started
Search/Exam
May 18, 2016
Non-patent literature filed by a third party
Search/Exam
May 18, 2016
Observations by third parties
Search/Exam
May 18, 2016
Patent document filed by a Third party
Search/Exam
May 18, 2016
Patent document filed by a Third party
Search/Exam
May 18, 2016
Patent document filed by a Third party
Search/Exam
May 18, 2016
Patent document filed by a Third party
Search/Exam
May 18, 2016
Patent document filed by a Third party
Search/Exam
May 18, 2016
Patent document filed by a Third party
Search/Exam
May 18, 2016
Patent document filed by a Third party
Search/Exam
May 18, 2016
Patent document filed by a Third party
Search/Exam
May 18, 2016
Patent document filed by a Third party
Search/Exam
May 17, 2016
May 17, 2016
May 11, 2016
Non-patent literature filed by a third party
Search/Exam
May 11, 2016
Observations by third parties
Search/Exam
May 11, 2016
Patent document filed by a Third party
Search/Exam
May 11, 2016
Patent document filed by a Third party
Search/Exam
May 11, 2016
Patent document filed by a Third party
Search/Exam
May 11, 2016
Patent document filed by a Third party
Search/Exam
May 11, 2016
Patent document filed by a Third party
Search/Exam
Feb 26, 2016
Feb 26, 2016
Feb 16, 2016
Enquiry with the International Bureau
Search/Exam
Feb 12, 2016
Submission concerning representation
Search/Exam
Feb 10, 2016
Notification of forthcoming publication
Search/Exam
Feb 1, 2016
Feb 1, 2016
Jan 27, 2016
Jan 14, 2016
Copy of the international search report
Search/Exam
Jan 14, 2016
Jan 14, 2016
International publication pamphlet
Search/Exam
Nov 19, 2015
Nov 19, 2015
Oct 1, 2015
Enquiry with the International Bureau
Search/Exam
Aug 18, 2015
(Electronic) Receipt
Search/Exam
Aug 18, 2015
Abstract
Search/Exam
Aug 18, 2015
Claims
Search/Exam
Aug 18, 2015
Description
Search/Exam
Aug 18, 2015
Drawings
Search/Exam
Aug 18, 2015
Request for entry into the European phase
Search/Exam