Patent No. EP2157862 (titled "Biocide Composition Containing Glutaraldehyde And At Least One Isothiazolinone") was filed by Thor on Jun 5, 2008. The application was issued on Mar 30, 2016.

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 |
|---|---|---|
| LANXESS DEUTSCHLAND | Dec 20, 2016 | HERBOLD |
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
Jul 24, 2018
Jul 24, 2018
Jul 19, 2018
Apr 17, 2018
Apr 13, 2018
Apr 13, 2018
Apr 12, 2018
Apr 9, 2018
Apr 9, 2018
Apr 9, 2018
Apr 9, 2018
Apr 6, 2018
Apr 6, 2018
Apr 6, 2018
Apr 4, 2018
Apr 3, 2018
Apr 3, 2018
Apr 3, 2018
Apr 3, 2018
Mar 29, 2018
Mar 29, 2018
Mar 29, 2018
Feb 9, 2018
Feb 9, 2018
Feb 7, 2018
Feb 6, 2018
Feb 6, 2018
Feb 6, 2018
Feb 6, 2018
Feb 6, 2018
Oct 5, 2017
Sep 28, 2017
Sep 25, 2017
Sep 25, 2017
Sep 21, 2017
Sep 21, 2017
Sep 21, 2017
Sep 21, 2017
Sep 21, 2017
Sep 21, 2017
Sep 21, 2017
Jun 23, 2017
Jun 16, 2017
Jun 16, 2017
Jun 16, 2017
Jun 16, 2017
Jun 16, 2017
Jun 14, 2017
Jun 14, 2017
Jun 14, 2017
Jun 14, 2017
Jun 14, 2017
May 18, 2017
May 18, 2017
May 12, 2017
May 11, 2017
Feb 7, 2017
Feb 7, 2017
Jan 3, 2017
Dec 20, 2016
Dec 20, 2016
Dec 20, 2016
Dec 20, 2016
Dec 20, 2016
Dec 20, 2016
Dec 20, 2016
Dec 20, 2016
Dec 20, 2016
Dec 20, 2016
Mar 30, 2016
Mar 3, 2016
Feb 9, 2016
Feb 9, 2016
Feb 9, 2016
Feb 9, 2016
Feb 5, 2016
Feb 5, 2016
Feb 5, 2016
Feb 5, 2016
Feb 5, 2016
Oct 20, 2015
Oct 20, 2015
Oct 20, 2015
Oct 20, 2015
Oct 20, 2015
Oct 7, 2015
May 12, 2015
May 9, 2015
May 7, 2015
May 20, 2011
Apr 26, 2011
Apr 23, 2011
Apr 23, 2011
Apr 21, 2011
Apr 21, 2011
Apr 21, 2011
Apr 21, 2011
Sep 16, 2010
Mar 11, 2010
Mar 10, 2010
Feb 3, 2010
Feb 1, 2010
Jan 21, 2010
Dec 18, 2009
Dec 18, 2009
Dec 16, 2009
Nov 13, 2009
Nov 13, 2009
Oct 16, 2009
Aug 21, 2009
Aug 21, 2009
Aug 21, 2009
Aug 21, 2009
Aug 21, 2009
Aug 21, 2009
Aug 21, 2009
Aug 21, 2009
Aug 11, 2009
Aug 11, 2009
Aug 11, 2009
May 19, 2009
Apr 24, 2009
Apr 24, 2009
Apr 1, 2009
Apr 1, 2009
Apr 1, 2009
Feb 18, 2009
Feb 18, 2009
Jan 6, 2009
Jan 6, 2009
Dec 11, 2008
Dec 11, 2008
Dec 11, 2008
Jun 5, 2008
Jun 5, 2008
Jun 5, 2008
Jun 5, 2008
Jun 5, 2008
Jun 5, 2008