Patent No. EP2880140 (titled "Lubricating Oil Composition For Internal Combustion Engines") was filed by Shell Internationale Research Maatschappij on Jul 29, 2013. The application was issued on Mar 8, 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 |
|---|---|---|
| INFINEUM | Apr 27, 2017 | UEXKULL & STOLBERG |
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
Feb 9, 2023
Feb 9, 2023
Feb 6, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Dec 14, 2022
Dec 14, 2022
Dec 9, 2022
Dec 2, 2022
Dec 2, 2022
Dec 2, 2022
Oct 19, 2022
Oct 19, 2022
Oct 6, 2022
Oct 4, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 26, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 9, 2022
Sep 5, 2022
Sep 5, 2022
Sep 5, 2022
Sep 5, 2022
Sep 5, 2022
Aug 5, 2022
Aug 5, 2022
Dec 1, 2021
Dec 1, 2021
Dec 1, 2021
Nov 29, 2021
Nov 29, 2021
Nov 24, 2021
Nov 8, 2019
Jul 29, 2019
Jul 23, 2019
Jul 23, 2019
Jul 23, 2019
Jul 23, 2019
Jul 23, 2019
Jul 23, 2019
Jul 23, 2019
Apr 15, 2019
Apr 11, 2019
Apr 5, 2019
Apr 5, 2019
Apr 5, 2019
Apr 4, 2019
Apr 1, 2019
Apr 1, 2019
Apr 1, 2019
Feb 7, 2019
Feb 7, 2019
Feb 7, 2019
Feb 4, 2019
Feb 4, 2019
Jan 29, 2019
Jan 29, 2019
Jan 29, 2019
Jan 29, 2019
Dec 10, 2018
Nov 30, 2018
Nov 30, 2018
Nov 27, 2018
Nov 27, 2018
Nov 27, 2018
Nov 27, 2018
Nov 27, 2018
Nov 27, 2018
Nov 27, 2018
Nov 27, 2018
Nov 27, 2018
Nov 27, 2018
Nov 27, 2018
Nov 27, 2018
Nov 27, 2018
Nov 27, 2018
Nov 27, 2018
Sep 27, 2018
Aug 3, 2018
Jul 31, 2018
Jul 27, 2018
Jul 27, 2018
Jul 27, 2018
Jul 27, 2018
Jul 27, 2018
Jul 27, 2018
Jul 26, 2018
Jul 26, 2018
Jul 26, 2018
Jun 21, 2018
Jun 20, 2018
Jun 18, 2018
Jun 15, 2018
Jun 15, 2018
Jun 15, 2018
Jun 15, 2018
Jun 12, 2018
Jun 12, 2018
Jun 12, 2018
Feb 26, 2018
Feb 20, 2018
Feb 9, 2018
Feb 9, 2018
Feb 6, 2018
Feb 6, 2018
Feb 6, 2018
Feb 6, 2018
Feb 6, 2018
Feb 6, 2018
Feb 6, 2018
Feb 5, 2018
Oct 27, 2017
Oct 23, 2017
Oct 23, 2017
Oct 23, 2017
Oct 23, 2017
Jun 13, 2017
Jun 13, 2017
May 3, 2017
Apr 27, 2017
Apr 27, 2017
Apr 27, 2017
Apr 27, 2017
Apr 27, 2017
Apr 27, 2017
Apr 27, 2017
Apr 27, 2017
Apr 27, 2017
Jul 28, 2016
Jun 30, 2016
Jun 15, 2016
Jun 15, 2016
Jun 15, 2016
Jun 15, 2016
Apr 29, 2016
Apr 29, 2016
Apr 29, 2016
Apr 29, 2016
Apr 7, 2016
Sep 17, 2015
Sep 17, 2015
Sep 17, 2015
Sep 17, 2015
Jun 10, 2015
Jun 1, 2015
May 13, 2015
Mar 19, 2015
Mar 17, 2015
Mar 17, 2015
Mar 17, 2015
Mar 17, 2015
Feb 26, 2015
Feb 26, 2015
Feb 16, 2015
Feb 2, 2015
Feb 2, 2015
Feb 2, 2015
Dec 10, 2014
Feb 25, 2014
Feb 6, 2014
Feb 6, 2014
Sep 24, 2013
Sep 24, 2013
Sep 24, 2013
Jul 29, 2013
Jul 29, 2013
Jul 29, 2013
Jul 29, 2013
Jul 29, 2013
Jul 29, 2013