Patent No. EP3286165 (titled "Method And System For The Integrated Production Of Urea And Melamine") was filed by Stamicarbon on Apr 25, 2016. The application was issued on Feb 17, 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.
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
Jan 22, 2026
Jan 22, 2026
Jan 13, 2026
Jan 13, 2026
Jan 13, 2026
Oct 29, 2025
Oct 29, 2025
Oct 29, 2025
Oct 29, 2025
Oct 24, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 21, 2025
Jul 18, 2025
Jul 18, 2025
Jul 18, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
May 26, 2025
May 26, 2025
May 15, 2025
May 15, 2025
Apr 8, 2025
Apr 7, 2025
Apr 7, 2025
Apr 7, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Feb 11, 2025
Feb 6, 2025
Feb 6, 2025
Feb 6, 2025
Jan 14, 2025
Jan 14, 2025
Jan 9, 2025
Aug 19, 2024
Apr 11, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 4, 2024
Mar 28, 2024
Mar 28, 2024
Mar 28, 2024
Dec 6, 2023
Dec 6, 2023
Nov 29, 2023
Nov 29, 2023
Nov 29, 2023
Nov 29, 2023
Nov 29, 2023
Nov 29, 2023
Nov 29, 2023
Nov 29, 2023
Nov 29, 2023
Nov 29, 2023
Nov 29, 2023
Nov 29, 2023
Oct 4, 2023
Oct 4, 2023
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
Sep 25, 2023
Sep 25, 2023
Sep 15, 2023
Sep 15, 2023
Sep 15, 2023
Jul 28, 2023
Jul 28, 2023
Jul 28, 2023
Jul 27, 2023
Jul 21, 2023
Jul 21, 2023
Jul 21, 2023
Jul 20, 2023
Jul 19, 2023
Jul 19, 2023
Jul 19, 2023
Jul 19, 2023
Jul 19, 2023
Jul 19, 2023
Jul 19, 2023
Jul 19, 2023
Jul 19, 2023
Jul 19, 2023
Jul 19, 2023
Jul 19, 2023
Jul 19, 2023
Jul 19, 2023
Jul 19, 2023
Jun 20, 2023
Apr 26, 2023
Apr 26, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Feb 9, 2023
Feb 9, 2023
Dec 5, 2022
Dec 5, 2022
Nov 15, 2022
Nov 15, 2022
Nov 15, 2022
Nov 15, 2022
Nov 15, 2022
Nov 15, 2022
Nov 15, 2022
Apr 19, 2022
Apr 11, 2022
Apr 11, 2022
Apr 11, 2022
Apr 11, 2022
Dec 1, 2021
Dec 1, 2021
Nov 23, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Mar 1, 2021
Jan 21, 2021
Jan 5, 2021
Jan 5, 2021
Jan 5, 2021
Jan 5, 2021
Sep 15, 2020
Sep 15, 2020
Sep 15, 2020
Sep 15, 2020
Sep 15, 2020
Mar 4, 2019
Mar 4, 2019
Mar 4, 2019
Mar 4, 2019
Mar 4, 2019
Nov 14, 2018
Nov 14, 2018
Nov 6, 2018
Mar 22, 2018
Mar 22, 2018
Mar 22, 2018
Jan 31, 2018
Nov 30, 2017
Nov 28, 2017
Nov 23, 2017
Nov 7, 2017
Oct 24, 2017
Oct 24, 2017
Sep 1, 2017
Nov 15, 2016
Oct 27, 2016
Oct 27, 2016
Sep 14, 2016
Sep 13, 2016
Sep 13, 2016
Sep 13, 2016
Jul 12, 2016
Jun 23, 2016
Jun 23, 2016
Apr 25, 2016
Apr 25, 2016
Apr 25, 2016
Apr 25, 2016