Patent No. EP2241383 (titled "Rolling Mill, And Tandem Rolling Mill Having The Same") was filed by Mitsubishi Hitachi Metals Machinery on Jan 15, 2009. The application was issued on Jul 2, 2014.

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.
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
Jun 28, 2021
Jun 23, 2021
Jun 18, 2021
Jun 17, 2021
Jun 17, 2021
Jun 17, 2021
Apr 20, 2021
Apr 20, 2021
Apr 20, 2021
Mar 5, 2021
Mar 5, 2021
Mar 4, 2021
Mar 4, 2021
Feb 25, 2021
Feb 25, 2021
Feb 25, 2021
Feb 19, 2021
Feb 19, 2021
Feb 19, 2021
Feb 17, 2021
Feb 12, 2021
Feb 12, 2021
Feb 12, 2021
Feb 9, 2021
Feb 9, 2021
Feb 3, 2021
Feb 1, 2021
Jan 27, 2021
Jan 27, 2021
Jan 27, 2021
Jan 27, 2021
Jan 27, 2021
Jan 27, 2021
Jan 27, 2021
Jan 27, 2021
Jan 27, 2021
Jan 27, 2021
Jan 27, 2021
Jan 27, 2021
Jan 27, 2021
Aug 10, 2020
Aug 5, 2020
Jun 12, 2020
Jun 5, 2020
Jun 5, 2020
Jun 5, 2020
May 28, 2020
May 12, 2020
May 15, 2019
Feb 6, 2019
Feb 1, 2019
Feb 1, 2019
Feb 1, 2019
Aug 15, 2018
Jan 30, 2018
Jan 24, 2018
Jan 24, 2018
Jan 24, 2018
Jan 24, 2018
Jan 24, 2018
Oct 4, 2017
Sep 28, 2017
Sep 28, 2017
Sep 28, 2017
Sep 28, 2017
Sep 28, 2017
Sep 28, 2017
Sep 28, 2017
Sep 28, 2017
Sep 28, 2017
Sep 28, 2017
Sep 28, 2017
Sep 28, 2017
Aug 2, 2017
Aug 2, 2017
Jul 28, 2017
Jul 27, 2017
Jul 27, 2017
Jul 27, 2017
Jul 27, 2017
Jul 27, 2017
May 24, 2017
May 22, 2017
May 19, 2017
May 18, 2017
May 18, 2017
May 18, 2017
May 18, 2017
May 18, 2017
May 18, 2017
May 18, 2017
May 18, 2017
May 18, 2017
May 18, 2017
May 18, 2017
Apr 27, 2017
Mar 29, 2017
Mar 22, 2017
Mar 22, 2017
Mar 22, 2017
Mar 22, 2017
Mar 22, 2017
Mar 22, 2017
Mar 22, 2017
Mar 22, 2017
Mar 22, 2017
Mar 22, 2017
Mar 22, 2017
Mar 22, 2017
Mar 1, 2017
Feb 22, 2017
Feb 9, 2017
Feb 7, 2017
Feb 6, 2017
Sep 22, 2016
Sep 21, 2016
Sep 19, 2016
Sep 19, 2016
Sep 16, 2016
Sep 16, 2016
Sep 16, 2016
Sep 16, 2016
Mar 21, 2016
Mar 21, 2016
Dec 3, 2015
Dec 3, 2015
Dec 3, 2015
Nov 25, 2015
Nov 18, 2015
Nov 18, 2015
Nov 18, 2015
Nov 18, 2015
Nov 18, 2015
Sep 24, 2015
Sep 24, 2015
Sep 17, 2015
May 8, 2015
May 8, 2015
Apr 8, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Apr 1, 2015
Jul 2, 2014
Jun 5, 2014
May 23, 2014
May 23, 2014
May 23, 2014
Mar 25, 2014
Mar 25, 2014
Feb 4, 2014
Feb 4, 2014
Feb 4, 2014
Feb 4, 2014
Jan 28, 2014
Nov 26, 2013
Nov 26, 2013
Nov 26, 2013
Nov 26, 2013
Jul 11, 2013
Jun 24, 2013
Jun 24, 2013
Jun 24, 2013
Sep 22, 2010
Sep 20, 2010
Aug 31, 2010
Aug 11, 2010
Jun 29, 2010
Jun 29, 2010
Jun 29, 2010
Jun 29, 2010
Jun 29, 2010
Jun 29, 2010
Jun 29, 2010
Jun 7, 2010
Aug 17, 2009
Jul 30, 2009
Jul 30, 2009
Jul 30, 2009