Patent No. EP2723308 (titled "Cosmetic Composition Comprising At Least One Particular Amphoteric Polymer And At Least One Particular Conditioning Agent") was filed by L'Oreal on Jun 22, 2012. The application was issued on Aug 30, 2023.

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 |
|---|---|---|
| KAO GERMANY | May 2, 2018 | GRIT |
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
Aug 3, 2023
Aug 3, 2023
Jul 28, 2023
Jul 20, 2023
Jul 20, 2023
Jul 20, 2023
Jul 20, 2023
Jul 20, 2023
Jul 20, 2023
Jul 20, 2023
Apr 21, 2023
Apr 21, 2023
Apr 21, 2023
Apr 14, 2023
Apr 6, 2023
Apr 6, 2023
Apr 6, 2023
Mar 13, 2023
Mar 6, 2023
Mar 6, 2023
Jan 16, 2023
Jan 16, 2023
Jan 16, 2023
Jan 9, 2023
Jan 9, 2023
Jan 9, 2023
Nov 4, 2022
Oct 31, 2022
Oct 31, 2022
Oct 31, 2022
Oct 26, 2022
Oct 26, 2022
Oct 25, 2022
Oct 25, 2022
Oct 20, 2022
Oct 18, 2022
Oct 18, 2022
Oct 18, 2022
May 18, 2022
Mar 30, 2022
Mar 28, 2022
Mar 28, 2022
Mar 23, 2022
Nov 25, 2021
Nov 22, 2021
Nov 22, 2021
Nov 22, 2021
Aug 16, 2021
Aug 11, 2021
Aug 11, 2021
Aug 11, 2021
May 26, 2021
May 26, 2021
May 21, 2021
May 21, 2021
May 21, 2021
May 19, 2021
May 19, 2021
May 19, 2021
Aug 3, 2020
Mar 4, 2020
Feb 28, 2020
Feb 28, 2020
Feb 28, 2020
Feb 28, 2020
Feb 28, 2020
Feb 28, 2020
Feb 28, 2020
Feb 25, 2020
Feb 20, 2020
Feb 20, 2020
Feb 20, 2020
Oct 18, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Aug 12, 2019
Aug 12, 2019
Aug 7, 2019
Aug 7, 2019
Aug 7, 2019
Aug 2, 2019
Aug 2, 2019
Aug 2, 2019
Jun 14, 2019
Jun 11, 2019
Jun 6, 2019
Jun 6, 2019
Jun 5, 2019
Jun 5, 2019
Jun 5, 2019
Jun 5, 2019
Jun 5, 2019
Jun 5, 2019
Jun 5, 2019
Jun 5, 2019
Jun 5, 2019
Jun 5, 2019
Jun 5, 2019
Jun 5, 2019
Jun 5, 2019
Jun 5, 2019
Jun 5, 2019
May 17, 2019
Mar 22, 2019
Mar 21, 2019
Mar 21, 2019
Mar 19, 2019
Mar 19, 2019
Mar 19, 2019
Mar 19, 2019
Mar 18, 2019
Mar 15, 2019
Mar 15, 2019
Mar 15, 2019
Mar 15, 2019
Mar 15, 2019
Mar 15, 2019
Mar 15, 2019
Mar 15, 2019
Mar 15, 2019
Mar 14, 2019
Mar 14, 2019
Mar 14, 2019
Mar 14, 2019
Oct 29, 2018
Oct 22, 2018
Oct 22, 2018
Oct 19, 2018
Oct 18, 2018
Oct 18, 2018
Oct 18, 2018
Oct 18, 2018
Oct 18, 2018
Oct 18, 2018
Oct 18, 2018
Jul 25, 2018
Jul 20, 2018
Jul 20, 2018
Jul 20, 2018
Jul 20, 2018
Jul 20, 2018
Jul 20, 2018
Jul 20, 2018
May 17, 2018
May 17, 2018
May 15, 2018
May 8, 2018
May 8, 2018
May 8, 2018
May 8, 2018
May 8, 2018
May 8, 2018
May 8, 2018
May 8, 2018
May 7, 2018
May 2, 2018
May 2, 2018
May 2, 2018
May 2, 2018
Aug 3, 2017
Jul 6, 2017
Jun 27, 2017
Jun 15, 2017
Jun 15, 2017
Jun 15, 2017
Jun 15, 2017
Jun 15, 2017
Apr 28, 2017
Feb 1, 2017
Feb 1, 2017
Feb 1, 2017
Feb 1, 2017
Nov 9, 2016
Nov 9, 2016
Nov 9, 2016
Nov 9, 2016
Nov 9, 2016
Aug 16, 2016
Aug 8, 2016
Aug 1, 2016
Aug 1, 2016
Jul 25, 2016
Jul 25, 2016
Jul 25, 2016
Jul 25, 2016
Jul 25, 2016
Jul 25, 2016
Jul 25, 2016
Jul 25, 2016
Jul 25, 2016
Jul 25, 2016
Jul 25, 2016
Jul 25, 2016
Jul 25, 2016
Jul 25, 2016
Jun 22, 2016
Jun 22, 2016
Jun 22, 2016
Jun 22, 2016
Jun 22, 2016
Jun 22, 2016
Jun 22, 2016
Mar 10, 2016
Mar 10, 2016
Mar 3, 2016
Mar 13, 2015
Mar 13, 2015
Mar 13, 2015
Sep 5, 2014
Aug 29, 2014
Aug 29, 2014
Aug 29, 2014
Aug 28, 2014
Aug 28, 2014
Jul 29, 2014
Jul 29, 2014
Jul 29, 2014
Jul 28, 2014
Jul 8, 2014
Jul 8, 2014
Jul 8, 2014
Jul 4, 2014
Jun 25, 2014
Jun 23, 2014
Jun 17, 2014
Apr 2, 2014
Mar 24, 2014
Feb 5, 2014
Feb 5, 2014
Feb 5, 2014
Dec 18, 2013
Dec 18, 2013
Nov 4, 2013
Jan 16, 2013
Jan 16, 2013
Jan 16, 2013
Jan 16, 2013
Jan 16, 2013
Jan 16, 2013
Dec 27, 2012
Jun 22, 2012
Jun 22, 2012
Jun 22, 2012
Jun 22, 2012