Patent No. EP2581577 (titled "Method For Assembling A Monolith With A Mat In A Housing") was filed by Benteler Automobiltechnik on Aug 2, 2012. The application was issued on Mar 24, 2021.

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 |
|---|---|---|
| EBERSPACHER EXHAUST TECHNOLOGY | Dec 22, 2015 | RUTTENSPERGER LACHNIT TROSSIN GOMOLL |
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
Feb 25, 2021
Feb 25, 2021
Feb 19, 2021
Feb 2, 2021
Feb 2, 2021
Feb 2, 2021
Feb 2, 2021
Feb 2, 2021
Feb 2, 2021
Feb 2, 2021
Feb 2, 2021
Feb 2, 2021
Nov 2, 2020
Nov 2, 2020
Nov 2, 2020
Oct 28, 2020
Oct 19, 2020
Oct 19, 2020
Oct 16, 2020
Oct 16, 2020
Sep 30, 2020
Sep 30, 2020
Sep 30, 2020
Jul 10, 2020
Jul 6, 2020
Jul 6, 2020
Jul 6, 2020
Jun 26, 2020
Jun 25, 2020
Jun 24, 2020
Jun 23, 2020
Jun 23, 2020
Jun 23, 2020
Jun 18, 2020
Jun 10, 2020
Jun 10, 2020
Jun 10, 2020
Jun 9, 2020
Jun 8, 2020
Jun 8, 2020
Jun 8, 2020
Jun 4, 2020
Jun 4, 2020
Jun 4, 2020
Jun 3, 2020
Jun 3, 2020
Jun 2, 2020
Jun 2, 2020
May 29, 2020
May 28, 2020
May 28, 2020
May 27, 2020
May 27, 2020
May 27, 2020
May 27, 2020
May 27, 2020
May 27, 2020
May 27, 2020
May 26, 2020
May 20, 2020
May 20, 2020
May 20, 2020
Apr 17, 2020
Apr 17, 2020
Apr 9, 2020
Apr 9, 2020
Apr 9, 2020
Jan 24, 2020
Jan 24, 2020
Jan 23, 2020
Jan 20, 2020
Oct 22, 2019
Oct 22, 2019
Oct 17, 2019
Oct 17, 2019
Oct 17, 2019
Oct 17, 2019
Aug 12, 2019
Aug 24, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Aug 20, 2018
Apr 12, 2018
Feb 27, 2018
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Feb 7, 2018
Nov 9, 2017
Nov 6, 2017
Nov 6, 2017
Nov 6, 2017
Sep 28, 2017
Sep 20, 2017
Sep 20, 2017
Sep 20, 2017
Sep 20, 2017
Jul 19, 2017
Jul 17, 2017
Jul 17, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Jul 13, 2017
Jul 4, 2017
Jun 28, 2017
Jun 28, 2017
Jun 28, 2017
Jun 28, 2017
Jun 28, 2017
Jun 28, 2017
Jun 28, 2017
Jun 23, 2017
May 4, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017
Mar 30, 2017
Mar 23, 2017
Dec 15, 2016
Dec 14, 2016
Dec 9, 2016
Dec 9, 2016
Dec 8, 2016
Dec 8, 2016
Dec 8, 2016
Dec 8, 2016
Dec 8, 2016
Aug 29, 2016
Aug 22, 2016
Aug 22, 2016
Aug 22, 2016
Aug 9, 2016
Aug 3, 2016
Aug 3, 2016
Aug 3, 2016
Aug 3, 2016
Aug 3, 2016
Jun 7, 2016
Jun 7, 2016
Jun 2, 2016
Feb 3, 2016
Feb 3, 2016
Jan 8, 2016
Dec 22, 2015
Dec 22, 2015
Dec 22, 2015
Dec 22, 2015
Dec 22, 2015
Dec 22, 2015
Dec 22, 2015
Dec 22, 2015
Mar 26, 2015
Feb 26, 2015
Feb 17, 2015
Feb 12, 2015
Feb 12, 2015
Feb 12, 2015
Feb 12, 2015
Feb 11, 2015
Feb 11, 2015
Nov 20, 2014
Nov 20, 2014
Nov 20, 2014
Nov 20, 2014
Apr 22, 2013
Mar 20, 2013
Mar 5, 2013
Mar 4, 2013
Mar 4, 2013
Jan 30, 2013
Jan 30, 2013
Jan 30, 2013
Sep 25, 2012
Sep 25, 2012
Sep 25, 2012
Sep 18, 2012
Aug 4, 2012
Aug 4, 2012
Aug 2, 2012
Aug 2, 2012
Aug 2, 2012
Aug 2, 2012
Aug 2, 2012
Aug 2, 2012
Aug 2, 2012
Aug 2, 2012
Aug 2, 2012
Aug 2, 2012