Patent No. EP1874364 (titled "Superabsorber Treated With Metallic Salt And Metallic Oxide And Post-Crosslinked On The Surface Thereof") was filed by Evonik Degussa on Apr 21, 2006. The application was issued on Jan 3, 2018.

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 |
|---|---|---|
| NIPPON SHOKUBAI | Feb 16, 2015 | HENKEL |
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
Dec 7, 2017
Dec 7, 2017
Dec 1, 2017
Nov 21, 2017
Nov 21, 2017
Nov 21, 2017
Nov 21, 2017
Nov 21, 2017
Nov 21, 2017
Oct 13, 2017
Oct 13, 2017
Oct 13, 2017
Oct 5, 2017
Oct 2, 2017
Sep 29, 2017
Sep 21, 2017
Sep 14, 2017
Sep 1, 2017
Sep 1, 2017
Aug 23, 2017
Aug 21, 2017
Aug 21, 2017
Jun 16, 2017
Jun 12, 2017
Jun 12, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
May 16, 2017
May 9, 2017
May 9, 2017
May 8, 2017
May 8, 2017
Apr 28, 2017
Apr 28, 2017
Apr 28, 2017
Apr 28, 2017
Apr 28, 2017
Apr 28, 2017
Apr 18, 2017
Apr 18, 2017
Mar 16, 2017
Mar 16, 2017
Mar 9, 2017
Mar 9, 2017
Mar 9, 2017
Mar 9, 2017
Mar 9, 2017
Mar 9, 2017
Mar 9, 2017
Mar 9, 2017
Mar 9, 2017
Mar 9, 2017
Mar 9, 2017
Mar 9, 2017
Mar 9, 2017
Mar 9, 2017
Mar 9, 2017
Mar 9, 2017
Mar 7, 2017
Mar 7, 2017
Mar 2, 2017
Mar 2, 2017
Mar 2, 2017
Aug 5, 2016
Jun 11, 2016
Jun 8, 2016
Jun 7, 2016
Jun 6, 2016
Jun 6, 2016
Jun 6, 2016
Jun 6, 2016
Jun 6, 2016
May 18, 2016
Feb 4, 2016
Jan 25, 2016
Aug 7, 2015
Aug 3, 2015
Aug 3, 2015
Aug 3, 2015
Aug 3, 2015
Aug 3, 2015
Aug 3, 2015
Aug 3, 2015
Aug 3, 2015
Aug 3, 2015
Aug 3, 2015
Aug 3, 2015
Mar 20, 2015
Mar 20, 2015
Feb 25, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
Feb 16, 2015
May 14, 2014
Apr 17, 2014
Apr 3, 2014
Apr 3, 2014
Apr 3, 2014
Apr 3, 2014
Apr 3, 2014
Mar 4, 2014
Mar 4, 2014
Mar 4, 2014
Mar 4, 2014
Oct 25, 2013
Oct 25, 2013
Oct 25, 2013
Oct 24, 2013
Oct 24, 2013
Oct 24, 2013
Oct 23, 2013
Oct 23, 2013
Oct 22, 2013
Oct 22, 2013
Oct 22, 2013
Oct 22, 2013
Oct 22, 2013
Oct 21, 2013
Oct 21, 2013
Oct 21, 2013
Oct 21, 2013
Oct 21, 2013
Oct 21, 2013
Oct 19, 2013
Oct 19, 2013
Oct 19, 2013
Oct 19, 2013
Oct 19, 2013
Oct 18, 2013
Oct 18, 2013
Oct 18, 2013
Oct 18, 2013
Oct 18, 2013
Oct 18, 2013
Oct 18, 2013
Oct 18, 2013
Oct 18, 2013
Oct 18, 2013
Oct 16, 2013
Aug 27, 2013
Aug 27, 2013
Aug 27, 2013
Aug 27, 2013
Aug 27, 2013
Aug 27, 2013
Aug 27, 2013
Aug 27, 2013
Aug 27, 2013
Jul 13, 2013
Jul 9, 2013
Jul 9, 2013
Jul 9, 2013
Sep 12, 2012
Sep 6, 2012
Sep 1, 2012
Apr 27, 2009
Apr 20, 2009
Mar 31, 2009
Mar 23, 2009
Sep 5, 2008
Sep 5, 2008
Sep 5, 2008
Sep 5, 2008
Sep 5, 2008
Aug 29, 2008
Aug 29, 2008
Aug 29, 2008
Aug 29, 2008
Jul 3, 2008
Jun 27, 2008
Mar 6, 2008
Mar 6, 2008
Feb 28, 2008
Jan 14, 2008
Dec 20, 2007
Dec 12, 2007
Nov 23, 2007
Nov 7, 2007
Nov 7, 2007
Nov 7, 2007
Oct 29, 2007
Oct 19, 2007
Oct 10, 2007
Sep 18, 2007
Sep 18, 2007
Sep 18, 2007
Sep 18, 2007
Sep 18, 2007
Sep 18, 2007
Sep 18, 2007
Sep 18, 2007
Sep 18, 2007
Aug 31, 2007
Aug 14, 2007
Aug 14, 2007
Jul 19, 2007
Jul 13, 2007
Jun 20, 2007
Jun 14, 2007
Jun 14, 2007
May 4, 2007
May 4, 2007
May 4, 2007
May 4, 2007
Dec 8, 2006
Dec 8, 2006
Nov 21, 2006
Nov 21, 2006
Nov 21, 2006
Nov 14, 2006
Oct 26, 2006
Apr 28, 2006
Apr 28, 2006
Apr 28, 2006
Apr 28, 2006
Apr 28, 2006
Apr 21, 2006
Apr 21, 2006
Apr 21, 2006
Apr 21, 2006
Apr 21, 2006