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The patent EP2739654 was granted to DOW on Jan 27, 2021. The application was originally filed on Oct 24, 2011 under application number EP11874657A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE19741189 |
| DESCRIPTION | EP0119771 |
| DESCRIPTION | US4013739 |
| DESCRIPTION | US4196111 |
| DESCRIPTION | US4215085 |
| DESCRIPTION | US4221878 |
| DESCRIPTION | US4242500 |
| DESCRIPTION | US4251412 |
| DESCRIPTION | US4396740 |
| DESCRIPTION | US5087676 |
| DESCRIPTION | US5994457 |
| DESCRIPTION | US6365709 |
| DESCRIPTION | US6433132 |
| DESCRIPTION | US6462138 |
| DESCRIPTION | US7332565 |
| DESCRIPTION | WO9721805 |
| DESCRIPTION | WO9745468 |
| INTERNATIONAL-SEARCH-REPORT | CN102161854 |
| INTERNATIONAL-SEARCH-REPORT | CN1113901C |
| INTERNATIONAL-SEARCH-REPORT | DE19741189 |
| INTERNATIONAL-SEARCH-REPORT | US4013739 |
| INTERNATIONAL-SEARCH-REPORT | US4251412 |
| INTERNATIONAL-SEARCH-REPORT | US4278582 |
| OPPOSITION | DE19741184 |
| OPPOSITION | DE19741189 |
| OPPOSITION | DE4419518 |
| OPPOSITION | EP0028348 |
| SEARCH | DE19741189 |
| SEARCH | EP0119771 |
| SEARCH | US4013739 |
| SEARCH | US4196111 |
| SEARCH | US4215085 |
| SEARCH | US4221878 |
| SEARCH | US4242500 |
| SEARCH | US4251412 |
| SEARCH | US4396740 |
| SEARCH | US6462138 |
| SEARCH | WO9721805 |
| SEARCH | WO9745468 |
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 24, 2022
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Nov 11, 2021
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Oct 27, 2021
Oct 27, 2021
Oct 27, 2021
Oct 27, 2021
Oct 27, 2021
Oct 27, 2021
Oct 27, 2021
Oct 27, 2021
Feb 8, 2021
Jan 14, 2021
Decision to grant a European patent
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Dec 18, 2020
(Electronic) Receipt
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Dec 18, 2020
Filing of the translations of the claims
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Dec 18, 2020
French translation of claims
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Dec 18, 2020
German translation of the claims
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Dec 18, 2020
Letter accompanying subsequently filed items
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Sep 15, 2020
Sep 15, 2020
Sep 15, 2020
Intention to grant (signatures)
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Sep 15, 2020
Text intended for grant (clean copy)
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Sep 15, 2020
May 22, 2020
(Electronic) Receipt
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May 22, 2020
Amended claims with annotations
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May 22, 2020
Amended description with annotations
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May 22, 2020
Claims
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May 22, 2020
Description
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May 22, 2020
Letter accompanying subsequently filed items
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May 22, 2020
Jan 29, 2020
Annex to the communication
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Jan 29, 2020
Communication from the Examining Division
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Dec 24, 2018
(Electronic) Receipt
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Dec 24, 2018
Amended claims with annotations
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Dec 24, 2018
Amended description with annotations
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Dec 24, 2018
Claims
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Dec 24, 2018
Description
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Dec 24, 2018
Letter accompanying subsequently filed items
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Dec 24, 2018
Aug 27, 2018
Annex to the communication
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Aug 27, 2018
Communication from the Examining Division
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Aug 16, 2017
Jul 31, 2017
Annexes in respect of a client data request
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Jul 31, 2017
May 9, 2016
Apr 27, 2016
(Electronic) Receipt
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Apr 27, 2016
(Electronic) Receipt
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Apr 27, 2016
Amended claims with annotations
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Apr 27, 2016
Amended description with annotations
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Apr 27, 2016
Claims
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Apr 27, 2016
Description
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Apr 27, 2016
Letter accompanying subsequently filed items
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Apr 27, 2016
Letter accompanying subsequently filed items
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Apr 27, 2016
Apr 27, 2016
Feb 10, 2016
Feb 3, 2016
(Electronic) Receipt
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Feb 3, 2016
Letter accompanying subsequently filed items
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Feb 3, 2016
Nov 3, 2015
Annex to the communication
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Nov 3, 2015
Communication from the Examining Division
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Jul 3, 2015
(Electronic) Receipt
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Jul 3, 2015
Amended claims with annotations
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Jul 3, 2015
Claims
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Jul 3, 2015
Letter accompanying subsequently filed items
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Jul 3, 2015
Apr 1, 2015
Annex to the communication
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Apr 1, 2015
Communication from the Examining Division
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Mar 31, 2015
Mar 11, 2015
Mar 3, 2015
Mar 3, 2015
Supplementary European search report
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Feb 23, 2015
Search started
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Nov 26, 2014
Communication to designated inventor
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Nov 21, 2014
(Electronic) Receipt
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Nov 21, 2014
Letter accompanying subsequently filed items
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Nov 21, 2014
Letter concerning the inventor
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Nov 14, 2014
Nov 11, 2014
Letter which had not been notified
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Aug 25, 2014
Communication to designated inventor
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Aug 18, 2014
(Electronic) Receipt
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Aug 18, 2014
Letter accompanying subsequently filed items
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Aug 18, 2014
Letter concerning the inventor
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Aug 13, 2014
Aug 8, 2014
Letter which had not been notified
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May 28, 2014
Communication to designated inventor
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May 28, 2014
Communication to designated inventor
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May 28, 2014
Communication to designated inventor
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May 14, 2014
May 13, 2014
Mar 26, 2014
Mar 10, 2014
Information on entry into European phase
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Mar 4, 2014
(Electronic) Receipt
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Mar 4, 2014
Request for entry into the European phase
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May 2, 2013
Copy of the international search report
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May 2, 2013
May 2, 2013
Published international application - A1
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