Patent No. EP1763562 (titled "Process For Preparing Bitumen Compositions With Reduced Hydrogen Sulfide Emission") was filed by Fina Technology on Dec 15, 2004. The application was issued on Jun 26, 2019.

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 |
|---|---|---|
| ECOLAB USA | May 16, 2017 | GODEMEYER BLUM LENZE WERKPATENT |
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
Jun 17, 2024
Jun 17, 2024
Jun 17, 2024
Jun 17, 2024
Jun 17, 2024
Jun 17, 2024
May 31, 2019
May 31, 2019
May 24, 2019
May 16, 2019
May 16, 2019
May 16, 2019
May 16, 2019
May 16, 2019
Apr 1, 2019
Apr 1, 2019
Apr 1, 2019
Mar 27, 2019
Dec 21, 2018
Dec 5, 2018
Dec 4, 2018
Dec 3, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Nov 29, 2018
Oct 30, 2018
Oct 26, 2018
Oct 24, 2018
Oct 24, 2018
Oct 24, 2018
Oct 22, 2018
Oct 18, 2018
Oct 15, 2018
Oct 12, 2018
Sep 24, 2018
Sep 19, 2018
Sep 19, 2018
Sep 19, 2018
Sep 19, 2018
Aug 20, 2018
Aug 14, 2018
Aug 14, 2018
Aug 14, 2018
Aug 14, 2018
Aug 14, 2018
Aug 14, 2018
Aug 14, 2018
Jul 6, 2018
Jul 2, 2018
Apr 13, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Mar 15, 2018
Mar 14, 2018
Mar 12, 2018
Mar 9, 2018
Mar 7, 2018
Mar 7, 2018
Mar 7, 2018
Mar 7, 2018
Mar 7, 2018
Mar 7, 2018
Mar 7, 2018
Feb 23, 2018
Feb 13, 2018
Feb 7, 2018
Feb 7, 2018
Feb 7, 2018
Feb 7, 2018
Nov 13, 2017
Nov 7, 2017
Nov 7, 2017
Nov 7, 2017
Nov 7, 2017
Nov 7, 2017
Nov 7, 2017
Nov 7, 2017
Nov 7, 2017
Jun 27, 2017
Jun 27, 2017
Jun 27, 2017
Jun 27, 2017
Jun 27, 2017
Jun 12, 2017
May 24, 2017
May 16, 2017
May 16, 2017
May 16, 2017
May 16, 2017
May 16, 2017
May 16, 2017
May 16, 2017
May 16, 2017
May 16, 2017
May 16, 2017
May 16, 2017
May 16, 2017
May 16, 2017
May 16, 2017
Aug 17, 2016
Jul 21, 2016
Jul 5, 2016
Jul 5, 2016
Jul 5, 2016
Jul 5, 2016
Jul 5, 2016
Apr 29, 2016
Apr 29, 2016
Apr 29, 2016
Apr 29, 2016
Apr 29, 2016
Jan 25, 2016
Jan 25, 2016
Jan 25, 2016
Jan 25, 2016
Jan 25, 2016
Jan 25, 2016
Jan 25, 2016
Jan 21, 2016
Jan 20, 2016
Oct 20, 2015
Oct 20, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Dec 22, 2014
Dec 16, 2014
Dec 16, 2014
Dec 16, 2014
Dec 4, 2014
Aug 20, 2014
Aug 20, 2014
Aug 2, 2013
Jul 24, 2013
Aug 1, 2012
Aug 1, 2012
Aug 1, 2012
Aug 1, 2012
Aug 1, 2012
Apr 5, 2012
Apr 5, 2012
Nov 21, 2011
Nov 21, 2011
Nov 21, 2011
Nov 21, 2011
Nov 21, 2011
Nov 21, 2011
Nov 21, 2011
Oct 10, 2011
Sep 21, 2011
Sep 21, 2011
Oct 15, 2008
Oct 7, 2008
Sep 3, 2007
Aug 13, 2007
Aug 13, 2007
Aug 10, 2007
May 15, 2007
Apr 5, 2007
Apr 5, 2007
Feb 21, 2007
Feb 20, 2007
Sep 1, 2006
Aug 16, 2006
Aug 9, 2006
Aug 4, 2006
Aug 4, 2006
Aug 4, 2006
Jul 19, 2006
Jul 8, 2006
Jul 4, 2006
Jul 4, 2006
Jul 4, 2006
Jun 26, 2006
Jun 20, 2006
Jun 20, 2006
May 29, 2006
Aug 10, 2005
Jul 21, 2005