The weekly litigation news digest is live. Subscribe now
The patent EP3055353 was granted to Basf on Aug 23, 2023. The application was filed on Oct 9, 2014 under application number EP14783597A. 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 |
|---|---|---|---|
| ARKEMA FRANCE | May 2, 2018 | BANDPAY & GREUTER | ADMISSIBLE |
| HUNTSMAN | May 2, 2018 | VAN DEN BROECK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2013159758 |
| INTERNATIONAL-SEARCH-REPORT | WO9606129 |
| OPPOSITION | CN101612772B |
| OPPOSITION | EP1354913 |
| OPPOSITION | JP2003261707 |
| OPPOSITION | JP2013159758 |
| OPPOSITION | JPH08113664 |
| OPPOSITION | JPH1180408 |
| OPPOSITION | TWI576475B |
| OPPOSITION | US2009048356 |
| OPPOSITION | US2010047550 |
| OPPOSITION | US2010155997 |
| OPPOSITION | US2010222442 |
| OPPOSITION | US2011294910 |
| OPPOSITION | US2012329892 |
| OPPOSITION | US4331619 |
| OPPOSITION | US4473665 |
| OPPOSITION | WO0043193 |
| OPPOSITION | WO2006077395 |
| OPPOSITION | WO2007082838 |
| OPPOSITION | WO2012065926 |
| OPPOSITION | WO2013013784 |
| OPPOSITION | WO9420568 |
| OPPOSITION | WO9606129 |
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
Jul 27, 2023
Jul 27, 2023
Jul 27, 2023
Jul 21, 2023
Jul 18, 2023
Jul 18, 2023
Jul 18, 2023
Jul 18, 2023
Jul 18, 2023
Apr 11, 2023
Apr 11, 2023
Apr 11, 2023
Apr 4, 2023
Advice of delivery
Appeal
Apr 4, 2023
Apr 4, 2023
Apr 4, 2023
Apr 4, 2023
Apr 4, 2023
Feb 2, 2023
Feb 2, 2023
Feb 2, 2023
Feb 2, 2023
Dec 7, 2022
Dec 7, 2022
Dec 7, 2022
Dec 6, 2022
(Electronic) Receipt
Appeal
Dec 6, 2022
Dec 4, 2022
(Electronic) Receipt
Appeal
Dec 4, 2022
Dec 4, 2022
Dec 2, 2022
Dec 2, 2022
Nov 25, 2022
(Electronic) Receipt
Appeal
Nov 25, 2022
Nov 25, 2022
Nov 25, 2022
Nov 25, 2022
Nov 25, 2022
Oct 18, 2022
Advice of delivery
Appeal
Oct 17, 2022
(Electronic) Receipt
Appeal
Oct 17, 2022
Oct 17, 2022
Oct 17, 2022
Oct 17, 2022
Oct 12, 2022
Oct 12, 2022
Oct 7, 2022
(Electronic) Receipt
Appeal
Oct 7, 2022
Oct 7, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
May 10, 2022
May 10, 2022
May 10, 2022
May 9, 2022
Advice of delivery
Appeal
May 9, 2022
May 9, 2022
May 9, 2022
May 4, 2022
May 3, 2022
Nov 30, 2021
(Electronic) Receipt
Appeal
Nov 30, 2021
Nov 30, 2021
Sep 3, 2021
Sep 3, 2021
Aug 30, 2021
(Electronic) Receipt
Appeal
Aug 30, 2021
Aug 30, 2021
Jul 20, 2021
Feb 23, 2021
Feb 23, 2021
Feb 22, 2021
Feb 22, 2021
Feb 18, 2021
(Electronic) Receipt
Appeal
Feb 18, 2021
Feb 18, 2021
Reply to appeal
Appeal
Feb 16, 2021
(Electronic) Receipt
Appeal
Feb 16, 2021
Feb 16, 2021
Reply to appeal
Appeal
Oct 8, 2020
Oct 8, 2020
Oct 8, 2020
Aug 31, 2020
(Electronic) Receipt
Appeal
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 31, 2020
Aug 28, 2020
(Electronic) Receipt
Appeal
Aug 28, 2020
Aug 28, 2020
Jul 6, 2020
Jul 6, 2020
Jun 30, 2020
(Electronic) Receipt
Appeal
Jun 30, 2020
Jun 30, 2020
Notice of appeal
Appeal
Jun 29, 2020
(Electronic) Receipt
Appeal
Jun 29, 2020
Jun 29, 2020
Notice of appeal
Appeal
Apr 30, 2020
Apr 27, 2020
Apr 23, 2020
Apr 20, 2020
Apr 20, 2020
Apr 20, 2020
Apr 20, 2020
Apr 20, 2020
Apr 20, 2020
Apr 20, 2020
Apr 20, 2020
Apr 20, 2020
Apr 20, 2020
Apr 20, 2020
Means of redress
OPPO
Apr 20, 2020
Apr 20, 2020
Apr 20, 2020
Apr 20, 2020
Apr 20, 2020
Apr 20, 2020
Feb 18, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Dec 18, 2019
Dec 18, 2019
Dec 18, 2019
Dec 18, 2019
Dec 18, 2019
Dec 18, 2019
Claims
OPPO
Dec 18, 2019
Claims
OPPO
Dec 18, 2019
Claims
OPPO
Dec 18, 2019
Dec 18, 2019
Dec 18, 2019
Dec 18, 2019
Dec 18, 2019
Dec 18, 2019
Dec 18, 2019
Dec 17, 2019
Dec 17, 2019
Dec 17, 2019
Aug 2, 2019
Jun 27, 2019
Jun 26, 2019
Jun 14, 2019
Jun 14, 2019
Jun 14, 2019
Jun 14, 2019
Jun 14, 2019
Submission concerning representation
Search/Exam
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jan 3, 2019
Dec 18, 2018
Dec 14, 2018
Dec 14, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Claims
OPPO
Dec 3, 2018
Dec 3, 2018
Sep 21, 2018
Sep 21, 2018
Sep 21, 2018
Sep 18, 2018
Sep 18, 2018
Sep 18, 2018
Jun 26, 2018
Jun 20, 2018
Jun 20, 2018
Jun 20, 2018
May 28, 2018
May 28, 2018
May 23, 2018
May 23, 2018
May 23, 2018
May 18, 2018
May 18, 2018
May 18, 2018
May 16, 2018
May 16, 2018
May 16, 2018
May 9, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
Aug 3, 2017
Jul 6, 2017
Decision to grant a European patent
Search/Exam
Jun 19, 2017
(Electronic) Receipt
Search/Exam
Jun 19, 2017
English translation of the claims
Search/Exam
Jun 19, 2017
French translation of claims
Search/Exam
Jun 19, 2017
Letter accompanying subsequently filed items
Search/Exam
May 15, 2017
May 15, 2017
Apr 20, 2017
Mar 16, 2017
Mar 16, 2017
Mar 16, 2017
Intention to grant (signatures)
Search/Exam
Mar 16, 2017
Text intended for grant (clean copy)
Search/Exam
Mar 16, 2017
Feb 1, 2017
Examination started
Search/Exam
Jul 20, 2016
Jun 21, 2016
Jun 9, 2016
Jun 7, 2016
Letter which had not been notified
Search/Exam
Jun 3, 2016
Jun 2, 2016
Priority search results copy provided by EPO
Search/Exam
May 19, 2016
Communication to designated inventor
Search/Exam
May 19, 2016
Communication to designated inventor
Search/Exam
May 19, 2016
Communication to designated inventor
Search/Exam
May 3, 2016
(Electronic) Receipt
Search/Exam
May 3, 2016
Request for entry into the European phase
Search/Exam
Apr 19, 2016
Mar 3, 2016
CDS Clean up - amended applicant details
Search/Exam
Mar 3, 2016
Feb 19, 2016
Information on entry into European phase
Search/Exam
Dec 14, 2015
Dec 14, 2015
Dec 14, 2015
Dec 14, 2015
Dec 14, 2015
Dec 14, 2015
Sep 8, 2015
Notification of election of EPO
Search/Exam
Sep 8, 2015
Written opinion
PCT2
Sep 8, 2015
Sep 8, 2015
Aug 17, 2015
Aug 10, 2015
PCT demand form
PCT2
Aug 10, 2015
Aug 10, 2015
Aug 10, 2015
Aug 10, 2015
Aug 7, 2015
PCT demand form
PCT2
Aug 7, 2015
PCT demand form
PCT2
Aug 7, 2015
Aug 7, 2015
Aug 7, 2015
Aug 7, 2015
Aug 7, 2015
May 6, 2015
Apr 16, 2015
Copy of the international search report
Search/Exam
Apr 16, 2015
Copy of the international search report
Search/Exam
Apr 16, 2015
Published international application - A1
Search/Exam
Nov 5, 2014
Nov 5, 2014
Nov 5, 2014
Oct 9, 2014
(Electronic) Receipt
PCTRO
Oct 9, 2014
Abstract
PCTRO
Oct 9, 2014
Claims
PCTRO
Oct 9, 2014
Description
PCTRO
Oct 9, 2014