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The patent EP2545118 was granted to Ineos Styrolution America on Mar 22, 2017. The application was filed on Feb 18, 2011 under application number EP11753777A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| TRINSEO EUROPE | Dec 22, 2017 | HOFFMANN EITLE | ADMISSIBLE |
| TOTAL RESEARCH & TECHNOLOGY FELUY | Dec 5, 2017 | AWA BENELUX | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2002072570 |
| INTERNATIONAL-SEARCH-REPORT | US2006189751 |
| INTERNATIONAL-SEARCH-REPORT | US4144204 |
| OPPOSITION | EP0648789 |
| OPPOSITION | EP0669947 |
| OPPOSITION | US2006167187 |
| OPPOSITION | US2006235130 |
| OPPOSITION | US2694692 |
| OPPOSITION | US4144204 |
| SEARCH | US2002077425 |
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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Nov 9, 2022
Nov 8, 2022
Advice of delivery
Appeal
Nov 3, 2022
Advice of delivery
Appeal
Oct 31, 2022
Oct 31, 2022
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Sep 13, 2022
Sep 13, 2022
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Jul 25, 2022
Advice of delivery
Appeal
Jul 18, 2022
Advice of delivery
Appeal
Jul 14, 2022
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Advice of delivery
Appeal
Jul 12, 2022
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Jul 11, 2022
Advice of delivery
Appeal
Jul 11, 2022
Jul 11, 2022
Jul 11, 2022
Jul 7, 2022
(Electronic) Receipt
Appeal
Jul 7, 2022
Jul 7, 2022
Jul 6, 2022
Jul 6, 2022
Jul 6, 2022
Jul 1, 2022
(Electronic) Receipt
Appeal
Jul 1, 2022
Jul 1, 2022
Jun 20, 2022
Jun 20, 2022
Jun 13, 2022
(Electronic) Receipt
Appeal
Jun 13, 2022
Jun 13, 2022
May 3, 2022
May 3, 2022
May 3, 2022
Dec 10, 2021
Advice of delivery
Appeal
Dec 8, 2021
Advice of delivery
Appeal
Dec 6, 2021
Dec 6, 2021
Dec 6, 2021
Dec 1, 2021
May 17, 2021
Apr 30, 2021
Apr 8, 2021
Dec 21, 2020
Dec 21, 2020
Dec 16, 2020
(Electronic) Receipt
Appeal
Dec 16, 2020
Dec 16, 2020
Mar 13, 2020
Mar 13, 2020
Mar 6, 2020
(Electronic) Receipt
Appeal
Mar 6, 2020
Mar 6, 2020
Mar 6, 2020
Mar 6, 2020
Mar 6, 2020
Mar 6, 2020
Mar 6, 2020
Mar 6, 2020
Mar 6, 2020
Reply to appeal
Appeal
Nov 12, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 22, 2019
(Electronic) Receipt
Appeal
Oct 22, 2019
Oct 22, 2019
Oct 22, 2019
Oct 21, 2019
(Electronic) Receipt
Appeal
Oct 21, 2019
Oct 21, 2019
Aug 16, 2019
Aug 16, 2019
Aug 16, 2019
Aug 12, 2019
(Electronic) Receipt
Appeal
Aug 12, 2019
Aug 12, 2019
Notice of appeal
Appeal
Aug 8, 2019
Aug 8, 2019
Aug 8, 2019
Aug 5, 2019
(Electronic) Receipt
Appeal
Aug 5, 2019
Aug 5, 2019
Notice of appeal
Appeal
Jul 1, 2019
Jul 1, 2019
Jun 27, 2019
Jun 27, 2019
Jun 25, 2019
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Means of redress
OPPO
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Claims
OPPO
May 17, 2018
Claims
OPPO
May 17, 2018
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Dec 22, 2017
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Mar 22, 2017
Mar 13, 2017
Mar 13, 2017
Mar 7, 2017
(Electronic) Receipt
Search/Exam
Mar 7, 2017
Letter accompanying subsequently filed items
Search/Exam
Mar 7, 2017
Mar 6, 2017
General authorisation
Search/Exam
Mar 6, 2017
Mar 3, 2017
Feb 23, 2017
Decision to grant a European patent
Search/Exam
Jan 31, 2017
(Electronic) Receipt
Search/Exam
Jan 31, 2017
Filing of the translations of the claims
Search/Exam
Jan 31, 2017
French translation of claims
Search/Exam
Jan 31, 2017
German translation of the claims
Search/Exam
Jan 31, 2017
Letter accompanying subsequently filed items
Search/Exam
Nov 9, 2016
Nov 9, 2016
Nov 9, 2016
Intention to grant (signatures)
Search/Exam
Nov 9, 2016
Text intended for grant (clean copy)
Search/Exam
Nov 9, 2016
Jul 22, 2016
(Electronic) Receipt
Search/Exam
Jul 22, 2016
Amended description with annotations
Search/Exam
Jul 22, 2016
Description
Search/Exam
Jul 22, 2016
Letter accompanying subsequently filed items
Search/Exam
Jul 22, 2016
Jun 23, 2016
Jun 17, 2016
Apr 20, 2016
Annex to the communication
Search/Exam
Apr 20, 2016
Communication from the Examining Division
Search/Exam
Apr 18, 2016
Mar 30, 2016
(Electronic) Receipt
Search/Exam
Mar 30, 2016
Annexes in respect of a client data request
Search/Exam
Mar 30, 2016
Letter accompanying subsequently filed items
Search/Exam
Mar 30, 2016
Aug 12, 2015
(Electronic) Receipt
Search/Exam
Aug 12, 2015
Amended claims with annotations
Search/Exam
Aug 12, 2015
Claims
Search/Exam
Aug 12, 2015
Letter accompanying subsequently filed items
Search/Exam
Aug 12, 2015
May 11, 2015
Annex to the communication
Search/Exam
May 11, 2015
Communication from the Examining Division
Search/Exam
Apr 28, 2014
(Electronic) Receipt
Search/Exam
Apr 28, 2014
Amended claims with annotations
Search/Exam
Apr 28, 2014
Amended description with annotations
Search/Exam
Apr 28, 2014
Claims
Search/Exam
Apr 28, 2014
Description
Search/Exam
Apr 28, 2014
Letter accompanying subsequently filed items
Search/Exam
Apr 28, 2014
Jan 21, 2014
Annex to the communication
Search/Exam
Jan 21, 2014
Communication from the Examining Division
Search/Exam
Jan 15, 2014
Examination started
Search/Exam
Dec 9, 2013
(Electronic) Receipt
Search/Exam
Dec 9, 2013
Dec 9, 2013
Amended claims with annotations
Search/Exam
Dec 9, 2013
Amendments received before examination
Search/Exam
Dec 9, 2013
Letter accompanying subsequently filed items
Search/Exam
Oct 18, 2013
Oct 1, 2013
Oct 1, 2013
European search opinion
Search/Exam
Oct 1, 2013
Supplementary European search report
Search/Exam
Sep 9, 2013
Search started
Search/Exam
Dec 19, 2012
Nov 7, 2012
Oct 12, 2012
Communication to designated inventor
Search/Exam
Oct 12, 2012
Communication to designated inventor
Search/Exam
Sep 25, 2012
Sep 19, 2012
Notification of the recording of a change
Search/Exam
Sep 12, 2012
(Electronic) Receipt
Search/Exam
Sep 12, 2012
Sep 12, 2012
Amended claims with annotations
Search/Exam
Sep 12, 2012
Amendments received before examination
Search/Exam
Sep 12, 2012
Request for entry into the European phase
Search/Exam
Jul 20, 2012
Information on entry into European phase
Search/Exam
Oct 11, 2011
Notification of the recording of a change
Search/Exam
Oct 6, 2011
Sep 15, 2011
Copy of the international search report
Search/Exam
Sep 15, 2011
Published international application - A1
Search/Exam