Patent No. EP3692092 (titled "Powder Mixture Comprising Organic Peroxide") was filed by Nouryon Chemicals on Oct 2, 2018. The application was issued on Dec 7, 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 |
|---|---|---|
| ARKEMA FRANCE | Sep 7, 2023 | BANDPAY & GREUTER |
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
Jun 24, 2025
Jun 24, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 13, 2025
Mar 13, 2025
Mar 13, 2025
Feb 6, 2025
Jan 30, 2025
Jan 30, 2025
Jan 30, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 21, 2025
Jan 21, 2025
Jan 21, 2025
Jan 21, 2025
Jan 21, 2025
Jun 18, 2024
Jun 18, 2024
Jun 18, 2024
Jun 18, 2024
Jun 18, 2024
Jun 18, 2024
Jun 18, 2024
Jan 24, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Sep 21, 2023
Sep 21, 2023
Sep 13, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Dec 20, 2022
Nov 10, 2022
Sep 14, 2022
Sep 14, 2022
Sep 14, 2022
Sep 14, 2022
May 23, 2022
May 23, 2022
May 23, 2022
May 23, 2022
May 23, 2022
May 2, 2022
Oct 8, 2020
Oct 8, 2020
Oct 8, 2020
Oct 8, 2020
Oct 8, 2020
Jul 15, 2020
May 12, 2020
May 8, 2020
May 8, 2020
May 8, 2020
May 8, 2020
May 5, 2020
Apr 23, 2020
Apr 20, 2020
Apr 20, 2020
Mar 3, 2020
Mar 3, 2020
Feb 14, 2020
Aug 5, 2019
Aug 5, 2019
Aug 5, 2019
Aug 5, 2019
Jul 10, 2019
May 10, 2019
Apr 11, 2019
Apr 11, 2019
Jan 3, 2019
Jan 2, 2019
Jan 2, 2019
Jan 2, 2019
Oct 12, 2018
Oct 11, 2018
Oct 8, 2018
Oct 2, 2018
Oct 2, 2018
Oct 2, 2018
Oct 2, 2018
Oct 2, 2018
Oct 2, 2018
Oct 2, 2018