Patent No. EP3081777 (titled "Exhaust Gas Purification Material") was filed by Cataler on Dec 5, 2014. The application was issued on Sep 28, 2022.

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 |
|---|---|---|
| ALTMANN STOSSEL DICK PATENTANWALTE PARTG MBB | Oct 28, 2019 | ALTMANN STOSSEL DICK PATENTANWALTE PARTG MBB |
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 1, 2022
Sep 1, 2022
Aug 26, 2022
Aug 17, 2022
Aug 17, 2022
Aug 17, 2022
Aug 17, 2022
Aug 17, 2022
Jun 21, 2022
Jun 21, 2022
Jun 15, 2022
Mar 8, 2022
Mar 4, 2022
Mar 4, 2022
Mar 4, 2022
Mar 4, 2022
Mar 4, 2022
Mar 4, 2022
Mar 4, 2022
Mar 4, 2022
Mar 4, 2022
Mar 4, 2022
Mar 4, 2022
Mar 4, 2022
Mar 4, 2022
Mar 4, 2022
Mar 4, 2022
Mar 4, 2022
Nov 16, 2021
Nov 15, 2021
Nov 12, 2021
Nov 11, 2021
Nov 11, 2021
Nov 11, 2021
Nov 11, 2021
Nov 11, 2021
Nov 11, 2021
Nov 11, 2021
Nov 9, 2021
Nov 9, 2021
Nov 9, 2021
Nov 9, 2021
Nov 9, 2021
Nov 9, 2021
Nov 9, 2021
Nov 4, 2021
Oct 26, 2021
Oct 26, 2021
Oct 26, 2021
Oct 26, 2021
Sep 21, 2021
Sep 20, 2021
Sep 15, 2021
Sep 15, 2021
Sep 15, 2021
Sep 15, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Sep 14, 2021
Jul 19, 2021
Jul 19, 2021
Nov 25, 2020
Nov 24, 2020
Nov 23, 2020
Nov 16, 2020
Nov 16, 2020
Nov 16, 2020
Nov 16, 2020
Nov 16, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 20, 2020
Mar 20, 2020
Mar 20, 2020
Mar 20, 2020
Mar 20, 2020
Mar 20, 2020
Mar 20, 2020
Nov 20, 2019
Nov 20, 2019
Nov 15, 2019
Nov 8, 2019
Nov 5, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Oct 28, 2019
Feb 18, 2019
Jan 10, 2019
Dec 18, 2018
Dec 18, 2018
Dec 18, 2018
Dec 18, 2018
Dec 18, 2018
Sep 20, 2018
Sep 20, 2018
Sep 20, 2018
Sep 20, 2018
Sep 20, 2018
Jul 6, 2018
Jul 6, 2018
Jul 6, 2018
Jul 6, 2018
Jul 6, 2018
Feb 26, 2018
Feb 26, 2018
Feb 13, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jan 5, 2018
Jul 18, 2017
Jun 29, 2017
Jun 29, 2017
Jun 29, 2017
Jun 29, 2017
Jun 19, 2017
Sep 21, 2016
Jul 19, 2016
Jul 15, 2016
Jul 15, 2016
Jul 15, 2016
Jun 28, 2016
Jun 28, 2016
Apr 22, 2016
Mar 18, 2016
Mar 18, 2016
Mar 18, 2016
Mar 18, 2016
Mar 18, 2016
Mar 18, 2016
Mar 18, 2016
Jul 7, 2015
Jun 18, 2015
Jun 18, 2015
Jun 18, 2015