Patent No. EP2679605 (titled "Polybutadiene With Epoxy Groups") was filed by Evonik Degussa on Jun 29, 2012. The application was issued on Oct 14, 2015.

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 |
|---|---|---|
| EMERALD SPECIALTY POLYMERS | Jul 14, 2016 | RENKEMA |
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
Dec 11, 2018
Nov 30, 2018
Nov 30, 2018
Nov 27, 2018
Sep 5, 2018
Aug 23, 2018
Aug 23, 2018
Aug 23, 2018
Aug 17, 2018
Aug 17, 2018
Aug 17, 2018
Aug 17, 2018
Aug 17, 2018
Aug 17, 2018
Aug 17, 2018
Aug 17, 2018
Aug 17, 2018
Aug 17, 2018
Aug 17, 2018
Aug 17, 2018
Aug 17, 2018
Jul 3, 2018
May 31, 2018
May 22, 2018
May 22, 2018
May 22, 2018
May 22, 2018
May 22, 2018
May 22, 2018
May 22, 2018
May 9, 2018
May 9, 2018
May 3, 2018
May 3, 2018
May 3, 2018
May 3, 2018
May 2, 2018
May 2, 2018
May 2, 2018
Apr 20, 2018
Apr 20, 2018
Apr 20, 2018
Mar 21, 2018
Mar 16, 2018
Mar 15, 2018
Mar 15, 2018
Mar 15, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Mar 6, 2018
Jul 13, 2017
Jun 27, 2017
Jun 27, 2017
Jun 19, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jan 18, 2017
Jan 12, 2017
Jan 12, 2017
Jan 12, 2017
Jan 12, 2017
Jan 12, 2017
Jan 12, 2017
Jan 12, 2017
Jan 12, 2017
Jan 12, 2017
Jan 12, 2017
Jan 12, 2017
Jan 12, 2017
Jan 12, 2017
Jan 12, 2017
Jan 12, 2017
Jan 12, 2017
Jan 3, 2017
Dec 20, 2016
Aug 24, 2016
Aug 24, 2016
Jul 26, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Jul 14, 2016
Oct 15, 2015
Sep 17, 2015
Sep 4, 2015
Sep 4, 2015
Sep 4, 2015
Sep 4, 2015
Sep 4, 2015
Jul 20, 2015
Jul 20, 2015
Jul 20, 2015
Jul 20, 2015
Jul 10, 2015
Jun 16, 2015
May 5, 2014
May 5, 2014
May 5, 2014
May 5, 2014
Jan 29, 2014
Jan 29, 2014
Jan 29, 2014
Jan 13, 2014
Jan 13, 2014
Jan 8, 2014
Jan 7, 2014
Dec 4, 2013
Nov 20, 2012
Nov 20, 2012
Nov 20, 2012
Nov 20, 2012
Nov 20, 2012
Nov 19, 2012
Nov 19, 2012
Nov 19, 2012
Oct 29, 2012
Oct 29, 2012
Oct 29, 2012
Aug 22, 2012
Aug 22, 2012
Jun 29, 2012
Jun 29, 2012
Jun 29, 2012
Jun 29, 2012
Jun 29, 2012
Jun 29, 2012
Jun 29, 2012