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The patent EP2134752 was granted to DOW on Apr 19, 2017. The application was filed on Mar 15, 2008 under application number EP08716568A. 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 |
|---|---|---|---|
| TYLOSE & COKG | Jan 18, 2018 | PLATE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | GB2262527 |
| INTERNATIONAL-SEARCH-REPORT | US2001025101 |
| INTERNATIONAL-SEARCH-REPORT | US2001034441 |
| INTERNATIONAL-SEARCH-REPORT | US2005241541 |
| INTERNATIONAL-SEARCH-REPORT | US4979681 |
| OPPOSITION | DE3909070 |
| OPPOSITION | EP0353789 |
| OPPOSITION | EP0370447 |
| OPPOSITION | EP0954536 |
| OPPOSITION | EP1136458 |
| OPPOSITION | GB2262527 |
| OPPOSITION | US2001025101 |
| OPPOSITION | US2001034441 |
| OPPOSITION | US2005241541 |
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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Feb 16, 2022
Advice of delivery
Appeal
Feb 14, 2022
Advice of delivery
Appeal
Feb 14, 2022
Refund of fees
Search/Exam
Feb 14, 2022
Refund of fees
Appeal
Feb 10, 2022
Feb 10, 2022
Feb 10, 2022
Feb 10, 2022
Feb 8, 2022
Feb 8, 2022
Feb 7, 2022
Feb 4, 2022
(Electronic) Receipt
Appeal
Feb 4, 2022
Feb 4, 2022
Withdrawal of an appeal
Appeal
Feb 3, 2022
(Electronic) Receipt
Appeal
Feb 3, 2022
Feb 3, 2022
Jan 18, 2022
Jan 13, 2022
(Electronic) Receipt
Appeal
Jan 13, 2022
Jan 13, 2022
Jan 4, 2022
Dec 20, 2021
(Electronic) Receipt
Appeal
Dec 20, 2021
Dec 20, 2021
Dec 20, 2021
Dec 16, 2021
Advice of delivery
Appeal
Dec 15, 2021
Advice of delivery
Appeal
Dec 9, 2021
Dec 9, 2021
Dec 9, 2021
Dec 9, 2021
Nov 11, 2021
Nov 11, 2021
Oct 14, 2021
Advice of delivery
Appeal
Oct 11, 2021
Advice of delivery
Appeal
Oct 6, 2021
Oct 6, 2021
Oct 1, 2021
Sep 30, 2021
Apr 15, 2021
Document concerning representation
Search/Exam
Oct 5, 2020
Apr 16, 2020
Apr 8, 2020
(Electronic) Receipt
Appeal
Apr 8, 2020
Apr 8, 2020
Jan 21, 2020
Jan 15, 2020
(Electronic) Receipt
Appeal
Jan 15, 2020
Jan 15, 2020
Reply to appeal
Appeal
Sep 5, 2019
Sep 2, 2019
(Electronic) Receipt
Appeal
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Jul 5, 2019
Jul 5, 2019
Jul 2, 2019
(Electronic) Receipt
Appeal
Jul 2, 2019
Jul 2, 2019
Notice of appeal
Appeal
Jul 2, 2019
May 6, 2019
May 2, 2019
Apr 30, 2019
Apr 30, 2019
Apr 26, 2019
Apr 26, 2019
Apr 26, 2019
Apr 26, 2019
Apr 26, 2019
Apr 26, 2019
Apr 26, 2019
Apr 26, 2019
Apr 26, 2019
Means of redress
OPPO
Apr 26, 2019
Apr 26, 2019
Apr 26, 2019
Apr 26, 2019
Apr 10, 2019
Feb 18, 2019
Feb 13, 2019
Feb 12, 2019
Feb 11, 2019
Feb 8, 2019
Feb 8, 2019
Feb 8, 2019
Feb 7, 2019
Jan 29, 2019
Jan 23, 2019
Jan 23, 2019
Jan 23, 2019
Sep 11, 2018
Sep 10, 2018
Sep 10, 2018
Sep 10, 2018
Sep 5, 2018
Sep 5, 2018
Sep 5, 2018
Sep 5, 2018
Sep 5, 2018
Sep 5, 2018
Sep 5, 2018
Jun 8, 2018
Jun 4, 2018
Jun 4, 2018
Jun 4, 2018
Feb 6, 2018
Feb 6, 2018
Jan 25, 2018
Jan 18, 2018
Jan 18, 2018
Jan 18, 2018
Dec 21, 2017
Dec 18, 2017
Apr 19, 2017
Mar 23, 2017
Decision to grant a European patent
Search/Exam
Mar 22, 2017
Refund of fees
Search/Exam
Mar 6, 2017
(Electronic) Receipt
Search/Exam
Mar 6, 2017
Filing of the translations of the claims
Search/Exam
Mar 6, 2017
French translation of claims
Search/Exam
Mar 6, 2017
German translation of the claims
Search/Exam
Mar 6, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 27, 2016
Oct 27, 2016
Oct 27, 2016
Intention to grant (signatures)
Search/Exam
Oct 27, 2016
Text intended for grant (clean copy)
Search/Exam
Oct 27, 2016
Jan 23, 2016
Amended claims with annotations
Search/Exam
Jan 23, 2016
Claims
Search/Exam
Jan 23, 2016
Sep 28, 2015
Annex to the communication
Search/Exam
Sep 28, 2015
Communication from the Examining Division
Search/Exam
Apr 1, 2015
Mar 27, 2015
Dec 16, 2013
Submission concerning representation
Search/Exam
May 2, 2013
Apr 26, 2013
Apr 19, 2013
Apr 17, 2013
Mar 16, 2011
Mar 7, 2011
Aug 3, 2010
Amended claims with annotations
Search/Exam
Aug 3, 2010
Annex
Search/Exam
Aug 3, 2010
Claims
Search/Exam
Aug 3, 2010
Jun 4, 2010
May 28, 2010
May 27, 2010
Jan 27, 2010
Annex to the communication
Search/Exam
Jan 27, 2010
Communication from the Examining Division
Search/Exam
Nov 25, 2009
Nov 17, 2009
Oct 15, 2009
Oct 15, 2009
General authorisation
Search/Exam
Oct 15, 2009
Request for entry into the European phase
Search/Exam
Oct 15, 2009
Submission concerning representation
Search/Exam
Oct 15, 2009
Submission concerning representation
Search/Exam
Oct 6, 2009
Subsequently filed documents not duly signed
Search/Exam
Sep 29, 2009
Request for entry into the European phase
Search/Exam
Sep 29, 2009
Submission concerning representation
Search/Exam
Sep 23, 2009
Fax request to enter the European phase
Search/Exam
Sep 23, 2009
Letter accompanying subsequently filed items
Search/Exam
Sep 23, 2009
Request for entry into the European phase
Search/Exam
Aug 20, 2009
Information on entry into European phase
Search/Exam
Jul 31, 2009
Jul 31, 2009
Jul 31, 2009
Jul 31, 2009
Jul 31, 2009
Jul 31, 2009
Jul 31, 2009
Jul 31, 2009
Apr 3, 2009
Apr 3, 2009
Apr 3, 2009
Notification of the recording of a change
Search/Exam
Nov 5, 2008
Oct 21, 2008
Oct 21, 2008
Oct 16, 2008
Copy of the international search report
Search/Exam
Oct 16, 2008
Published international application - A1
Search/Exam
Sep 26, 2008
PCT demand form
PCT2
Sep 26, 2008
Mar 15, 2008
Abstract
PCTRO
Mar 15, 2008
Claims
PCTRO
Mar 15, 2008
Description
PCTRO