The patent EP2794735 was granted to Hexcel Holding on Jul 17, 2019. The application was originally filed on Dec 21, 2012 under application number EP12816064A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 | WO2011073111 |
| EXAMINATION | WO0100405 |
| EXAMINATION | WO2008142474 |
| INTERNATIONAL-SEARCH-REPORT | EP0336360 |
| INTERNATIONAL-SEARCH-REPORT | EP1279688 |
| INTERNATIONAL-SEARCH-REPORT | US2010136316 |
| INTERNATIONAL-SEARCH-REPORT | WO2011073111 |
| OPPOSITION | JP2002145986 |
| OPPOSITION | JP2003073456 |
| OPPOSITION | JP3349556B |
| OPPOSITION | US3386955 |
| OPPOSITION | US4714648 |
| OPPOSITION | WO2008142474 |
| OPPOSITION | WO2011073111 |
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
| Citation Phase | Reference Text |
|---|---|
| EXAMINATION | - D. P. Fasce ET AL, "Curing of epoxy resins with in situ-generated substituted ureas", Journal of Applied Polymer Science, (19900120), vol. 39, no. 2, doi:10.1002/app.1990.070390215, ISSN 0021-8995, pages 383 - 394, XP055484726 |
| OPPOSITION | - Anonymous, "Advanced Materials Technical Datasheet , Araldite EPN1138 Resin", Huntsman enriching lives through innovation, (20150601), pages 1 - 3, XP055743576 |
| OPPOSITION | - Epon™ Resin, "Technical Data Sheet Processing/How to use General Information HEXION MAKES NO WARRANTY, EXPRESS OR IMPLIED, CONCERNING THE PRODUCT OR THE MERCHANTABILITY OR FITNESS THEREOF FOR ANY PURPOSE OR CONCERNING THE ACCURACY OF ANY INFORMATION PROVIDED", (20180423), URL: https://www.hexion.com/CustomServices/PDFDownloader.aspx?type=tds&pid=f0b7842c-5814-6fe3-ae8a-ff0300fcd525, XP055469384 |
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Date
Description
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OPPO
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Document concerning representation
Search/Exam
Jul 29, 2019
Jun 21, 2019
Decision to grant a European patent
Search/Exam
May 30, 2019
(Electronic) Receipt
Search/Exam
May 30, 2019
Filing of the translations of the claims
Search/Exam
May 30, 2019
French translation of claims
Search/Exam
May 30, 2019
German translation of the claims
Search/Exam
May 30, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 31, 2019
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Intention to grant (signatures)
Search/Exam
Jan 31, 2019
Text intended for grant (clean copy)
Search/Exam
Jan 31, 2019
Dec 18, 2018
(Electronic) Receipt
Search/Exam
Dec 18, 2018
Claims
Search/Exam
Dec 18, 2018
Description
Search/Exam
Dec 18, 2018
Letter accompanying subsequently filed items
Search/Exam
Dec 18, 2018
Oct 24, 2018
Oct 18, 2018
(Electronic) Receipt
Search/Exam
Oct 18, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 18, 2018
Jun 22, 2018
Annex to the communication
Search/Exam
Jun 22, 2018
Communication from the Examining Division
Search/Exam
Sep 28, 2017
(Electronic) Receipt
Search/Exam
Sep 28, 2017
Claims
Search/Exam
Sep 28, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 28, 2017
Jul 14, 2017
Jul 10, 2017
(Electronic) Receipt
Search/Exam
Jul 10, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 10, 2017
Mar 31, 2017
Annex to a communication
Search/Exam
Mar 31, 2017
Annex to the communication
Search/Exam
Mar 31, 2017
Communication from the Examining Division
Search/Exam
Dec 14, 2016
(Electronic) Receipt
Search/Exam
Dec 14, 2016
Claims
Search/Exam
Dec 14, 2016
Letter accompanying subsequently filed items
Search/Exam
Dec 14, 2016
Oct 19, 2016
Submission concerning representation
Search/Exam
Sep 15, 2016
Annex to the communication
Search/Exam
Sep 15, 2016
Communication from the Examining Division
Search/Exam
Sep 9, 2016
Examination started
Search/Exam
Feb 2, 2015
(Electronic) Receipt
Search/Exam
Feb 2, 2015
Feb 2, 2015
Amendments received before examination
Search/Exam
Feb 2, 2015
Letter accompanying subsequently filed items
Search/Exam
Oct 1, 2014
Jul 29, 2014
Jul 25, 2014
Communication to designated inventor
Search/Exam
Jul 25, 2014
Communication to designated inventor
Search/Exam
Jul 22, 2014
Priority search results copy provided by EPO
Search/Exam
Jul 16, 2014
Refund of fees
Search/Exam
Jul 7, 2014
Jun 27, 2014
(Electronic) Receipt
Search/Exam
Jun 27, 2014
Jun 27, 2014
Matter concerning the application
Search/Exam
Jun 27, 2014
Request for entry into the European phase
Search/Exam
May 6, 2014
Information on entry into European phase
Search/Exam
Jul 17, 2013
Jul 17, 2013
Jun 27, 2013
Copy of the international search report
Search/Exam
Jun 27, 2013
Published international application - A1
Search/Exam
May 16, 2013
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Dec 21, 2012
(Electronic) Receipt
PCTRO
Dec 21, 2012
Abstract
PCTRO
Dec 21, 2012
Claims
PCTRO
Dec 21, 2012
Description
PCTRO
Dec 21, 2012
Drawings
PCTRO
Dec 21, 2012
Dec 21, 2012