Patent No. EP1688500 (titled "Overexpression Of Phytase Genes In Yeast Systems") was filed by Cornell Research Foundation on Jun 23, 1999. The application was issued on Dec 30, 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 |
|---|---|---|
| KAESLER NUTRITION | Sep 30, 2016 | VO |
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
May 16, 2022
Mar 2, 2022
Mar 2, 2022
Mar 2, 2022
Feb 25, 2022
Feb 25, 2022
Feb 25, 2022
Feb 24, 2022
Feb 24, 2022
Feb 24, 2022
Feb 24, 2022
Feb 23, 2022
Feb 22, 2022
Feb 14, 2022
Feb 14, 2022
Jan 31, 2022
Jan 31, 2022
Jan 17, 2022
Jan 12, 2022
Jan 12, 2022
Jan 12, 2022
May 19, 2021
May 18, 2021
May 10, 2021
May 10, 2021
May 10, 2021
May 10, 2021
May 4, 2021
Jun 5, 2019
Jan 17, 2019
Jan 10, 2019
Aug 31, 2018
Aug 31, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 27, 2018
Aug 22, 2018
Jul 2, 2018
Jul 2, 2018
Jun 27, 2018
Jun 27, 2018
Jun 27, 2018
Jun 27, 2018
Jun 26, 2018
Jun 26, 2018
Jun 26, 2018
May 23, 2018
Apr 23, 2018
Apr 19, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Mar 19, 2018
Mar 9, 2018
Mar 9, 2018
Mar 9, 2018
Mar 9, 2018
Mar 6, 2018
Mar 1, 2018
Feb 22, 2018
Feb 21, 2018
Feb 16, 2018
Feb 16, 2018
Feb 16, 2018
Jan 16, 2018
Jan 9, 2018
Jan 9, 2018
Jan 9, 2018
Jan 9, 2018
Jan 9, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 4, 2018
Jan 4, 2018
Jan 2, 2018
Jul 19, 2017
Jul 18, 2017
Jul 17, 2017
Jul 11, 2017
Jul 10, 2017
Jul 10, 2017
Jul 10, 2017
Jul 10, 2017
Jul 10, 2017
Jul 10, 2017
Jul 10, 2017
Jun 14, 2017
Jun 7, 2017
Jun 7, 2017
Jun 7, 2017
Jun 7, 2017
May 30, 2017
May 18, 2017
May 18, 2017
May 18, 2017
Apr 3, 2017
Mar 17, 2017
Mar 17, 2017
Mar 17, 2017
Mar 17, 2017
Mar 17, 2017
Mar 17, 2017
Mar 17, 2017
Nov 8, 2016
Nov 8, 2016
Oct 7, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Dec 30, 2015
Dec 3, 2015
Oct 29, 2015
Oct 29, 2015
Oct 29, 2015
Oct 29, 2015
Jul 16, 2015
Jul 16, 2015
Jul 16, 2015
Jul 16, 2015
May 22, 2015
May 22, 2015
May 22, 2015
Mar 31, 2015
Mar 25, 2015
Feb 24, 2015
Nov 17, 2014
Nov 17, 2014
Oct 13, 2014
Oct 13, 2014
Oct 13, 2014
Jun 3, 2014
Jun 3, 2014
Dec 21, 2012
Dec 21, 2012
Dec 21, 2012
Dec 21, 2012
Dec 21, 2012
Dec 21, 2012
Dec 21, 2012
Dec 21, 2012
Dec 21, 2012
Oct 29, 2012
Oct 19, 2012
Jun 11, 2012
Jun 11, 2012
Jun 9, 2010
May 14, 2010
May 14, 2010
Mar 4, 2010
Feb 5, 2010
Jan 26, 2010
Jan 11, 2010
Dec 23, 2009
Nov 3, 2009
Oct 26, 2009
Jun 16, 2009
Jun 9, 2009
Jun 4, 2009
May 5, 2009
Apr 3, 2009
Apr 3, 2009
Mar 12, 2009
Mar 12, 2009
Mar 12, 2009
Nov 10, 2008
Oct 15, 2008
Oct 7, 2008
Oct 7, 2008
Oct 7, 2008
Sep 24, 2008
Nov 15, 2007
Nov 8, 2007
Nov 6, 2007
Aug 28, 2007
Jul 12, 2006
May 27, 2006
May 27, 2006
May 27, 2006
May 16, 2006
Feb 9, 2006
Feb 9, 2006
Feb 9, 2006
Feb 9, 2006
Feb 9, 2006
Feb 9, 2006
Feb 9, 2006
Feb 9, 2006
Feb 9, 2006
Jan 17, 2000