Patent No. EP2109659 (titled "Dispersant Combination For Improved Transmission Fluids") was filed by The Lubrizol on Jan 22, 2008. The application was issued on Jun 12, 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 |
|---|---|---|
| AFTON CHEMICAL | Mar 12, 2020 | J A KEMP |
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
Sep 10, 2024
Sep 10, 2024
Sep 10, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
May 17, 2024
May 16, 2024
May 16, 2024
May 13, 2024
May 13, 2024
Apr 5, 2024
Mar 29, 2024
Mar 29, 2024
Mar 29, 2024
Mar 14, 2024
Mar 13, 2024
Mar 8, 2024
Mar 8, 2024
Mar 8, 2024
Feb 9, 2024
Feb 6, 2024
Feb 6, 2024
Feb 6, 2024
Feb 6, 2024
Jan 26, 2024
Jan 23, 2024
Jan 23, 2024
Jan 23, 2024
Dec 1, 2023
Dec 1, 2023
Nov 29, 2023
Nov 15, 2023
Nov 14, 2023
Nov 11, 2023
Nov 11, 2023
Nov 11, 2023
Nov 11, 2023
Nov 11, 2023
Nov 11, 2023
Nov 11, 2023
Nov 11, 2023
Nov 11, 2023
Nov 11, 2023
Sep 12, 2023
Sep 6, 2023
Sep 6, 2023
Sep 6, 2023
Sep 6, 2023
Feb 6, 2023
Jan 31, 2023
Jan 31, 2023
Jan 31, 2023
Jan 31, 2023
Jan 31, 2023
Jul 18, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Feb 23, 2022
Feb 20, 2022
Feb 10, 2022
Feb 10, 2022
Feb 10, 2022
Feb 10, 2022
Feb 10, 2022
Dec 14, 2021
Dec 14, 2021
Dec 2, 2021
Dec 2, 2021
Dec 2, 2021
Nov 5, 2021
Nov 5, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Sep 20, 2021
Jul 16, 2021
Jul 15, 2021
Jul 15, 2021
Jul 13, 2021
Jul 13, 2021
Jul 13, 2021
Jul 13, 2021
Jul 13, 2021
Jul 13, 2021
Jul 12, 2021
Jul 12, 2021
Jul 12, 2021
Jul 12, 2021
Jul 12, 2021
Jul 12, 2021
Jul 12, 2021
Jul 6, 2021
Jul 6, 2021
Jul 6, 2021
Jul 6, 2021
Jul 6, 2021
Jul 6, 2021
Jul 6, 2021
Jul 6, 2021
Jul 6, 2021
Jul 6, 2021
Jul 6, 2021
Jul 6, 2021
Jul 6, 2021
Jul 6, 2021
May 20, 2021
May 19, 2021
May 14, 2021
May 14, 2021
May 14, 2021
May 14, 2021
May 14, 2021
May 14, 2021
May 14, 2021
May 14, 2021
May 14, 2021
May 14, 2021
May 14, 2021
May 14, 2021
May 14, 2021
May 14, 2021
May 14, 2021
May 14, 2021
May 12, 2021
May 12, 2021
May 12, 2021
Mar 5, 2021
Mar 5, 2021
Mar 5, 2021
Feb 19, 2021
Jan 22, 2021
Jan 22, 2021
Jan 22, 2021
Jan 13, 2021
Jan 13, 2021
Jan 13, 2021
Jan 11, 2021
Jan 11, 2021
Dec 11, 2020
Dec 4, 2020
Dec 4, 2020
Dec 4, 2020
Dec 4, 2020
Nov 24, 2020
Nov 24, 2020
Nov 24, 2020
Nov 6, 2020
Nov 6, 2020
Nov 6, 2020
Nov 6, 2020
Nov 6, 2020
Nov 6, 2020
Aug 3, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Jul 28, 2020
Mar 26, 2020
Mar 26, 2020
Mar 20, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Mar 12, 2020
Jun 25, 2019
May 16, 2019
May 7, 2019
May 7, 2019
May 7, 2019
May 7, 2019
May 7, 2019
Mar 20, 2019
Mar 20, 2019
Mar 20, 2019
Mar 20, 2019
Mar 20, 2019
Mar 20, 2019
Mar 20, 2019
Dec 11, 2018
Dec 11, 2018
Dec 11, 2018
Dec 11, 2018
Dec 11, 2018
Oct 2, 2015
Oct 2, 2015
Oct 2, 2015
Aug 10, 2015
Aug 4, 2015
Aug 4, 2015
Jul 9, 2015
Jul 2, 2015
Mar 26, 2015
Mar 26, 2015
Mar 20, 2015
May 22, 2014
May 22, 2014
May 22, 2014
May 14, 2012
May 3, 2012
Oct 13, 2009
Sep 23, 2009
Sep 11, 2009
Aug 17, 2009
Jul 24, 2009
Jul 24, 2009
Jul 24, 2009
Jun 12, 2009
Oct 16, 2008
Oct 16, 2008
Aug 25, 2008
Aug 7, 2008
Aug 7, 2008