Patent No. EP1982824 (titled "Device And Method For Creating A Three Dimensional Object Using Mask Illumination") was filed by Envisiontec on Mar 8, 2007. The application was issued on Jun 28, 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 |
|---|---|---|
| 3D SYSTEMS, INC. | Oct 27, 2016 | WUNSCH |
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 2, 2023
Jun 2, 2023
May 26, 2023
May 17, 2023
May 17, 2023
May 17, 2023
May 17, 2023
Feb 22, 2023
Feb 22, 2023
Feb 17, 2023
Feb 15, 2023
Feb 14, 2023
Feb 14, 2023
Feb 3, 2023
Feb 2, 2023
Feb 2, 2023
Feb 2, 2023
Jan 3, 2023
Jan 3, 2023
Dec 6, 2022
Dec 6, 2022
Dec 6, 2022
Oct 11, 2022
Oct 5, 2022
Oct 4, 2022
Oct 4, 2022
Oct 4, 2022
Oct 4, 2022
Oct 4, 2022
Oct 4, 2022
Oct 4, 2022
Oct 4, 2022
Oct 4, 2022
Oct 4, 2022
Oct 4, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Jun 2, 2022
May 17, 2022
May 12, 2022
May 12, 2022
May 12, 2022
Apr 28, 2022
Apr 28, 2022
Apr 20, 2022
Apr 20, 2022
Apr 19, 2022
Apr 19, 2022
Apr 11, 2022
Apr 4, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Oct 21, 2021
Oct 18, 2021
Oct 15, 2021
Oct 15, 2021
Oct 15, 2021
Oct 15, 2021
Oct 15, 2021
Oct 15, 2021
Jan 20, 2021
Dec 24, 2020
Dec 24, 2020
Dec 24, 2020
Aug 19, 2020
Aug 4, 2020
Aug 4, 2020
Aug 4, 2020
Nov 12, 2019
Nov 5, 2019
Aug 27, 2019
Aug 22, 2019
Aug 22, 2019
Aug 22, 2019
Dec 11, 2018
Dec 4, 2018
Dec 4, 2018
Dec 4, 2018
Dec 4, 2018
Dec 4, 2018
Aug 23, 2018
Aug 16, 2018
Aug 16, 2018
Aug 16, 2018
May 30, 2017
May 19, 2017
May 4, 2017
Apr 10, 2017
Apr 10, 2017
Apr 10, 2017
Apr 10, 2017
Apr 10, 2017
Apr 10, 2017
Apr 10, 2017
Nov 30, 2016
Nov 30, 2016
Nov 16, 2016
Oct 27, 2016
Oct 27, 2016
Oct 27, 2016
Oct 27, 2016
Oct 27, 2016
Oct 27, 2016
Oct 27, 2016
Oct 27, 2016
Oct 27, 2016
Oct 27, 2016
Oct 27, 2016
Oct 27, 2016
Oct 27, 2016
Jan 27, 2016
Jan 8, 2016
Dec 11, 2015
Nov 30, 2015
Nov 30, 2015
Nov 30, 2015
Nov 30, 2015
Nov 23, 2015
Nov 6, 2015
Nov 6, 2015
Nov 6, 2015
Nov 6, 2015
Nov 6, 2015
Nov 6, 2015
Nov 6, 2015
Jun 26, 2015
Jun 26, 2015
Jun 26, 2015
Jun 26, 2015
May 3, 2013
May 3, 2013
May 3, 2013
Jan 4, 2013
Jan 4, 2013
Dec 7, 2012
Nov 29, 2012
Jan 24, 2012
Feb 17, 2010
May 5, 2009
May 5, 2009
May 5, 2009
May 5, 2009
Nov 24, 2008
Nov 13, 2008
Nov 10, 2008
Oct 29, 2008
Oct 8, 2008
Oct 8, 2008
Oct 8, 2008
Sep 25, 2008
Sep 24, 2008
Jul 25, 2008
Jul 9, 2008
Jun 26, 2008
Jun 26, 2008
Jun 26, 2008
Jun 26, 2008
Jun 26, 2008
Jun 26, 2008
Feb 21, 2008
Apr 17, 2007