Patent No. EP3714020 (titled "Producing A Pressure-Sensitive Adhesive Mass On The Basis Of Acrylonitrile-Butadiene Rubber") was filed by Tesa on Nov 23, 2018. The application was issued on Sep 6, 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 |
|---|---|---|
| ENTEX RUST & MITSCHKE | Jun 3, 2024 | KAEWERT |
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 29, 2026
Jan 28, 2026
Jan 28, 2026
Jan 22, 2026
Jan 21, 2026
Jan 20, 2026
Jan 20, 2026
Jan 19, 2026
Jan 16, 2026
Jan 16, 2026
Jan 14, 2026
Jan 6, 2026
Dec 23, 2025
Dec 22, 2025
Dec 17, 2025
Dec 16, 2025
Dec 11, 2025
Dec 11, 2025
Dec 11, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
Oct 28, 2024
Oct 21, 2024
Oct 21, 2024
Oct 21, 2024
Jun 20, 2024
Jun 20, 2024
Jun 11, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 5, 2024
Jun 4, 2024
Jun 4, 2024
Jun 4, 2024
Jun 4, 2024
Jun 4, 2024
Jun 4, 2024
Jun 3, 2024
Jun 3, 2024
Jun 3, 2024
Sep 19, 2023
Aug 10, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Feb 21, 2023
Feb 21, 2023
Feb 21, 2023
Feb 21, 2023
Feb 21, 2023
Feb 21, 2023
Oct 13, 2022
Oct 13, 2022
Oct 13, 2022
Oct 13, 2022
Oct 13, 2022
Oct 13, 2022
Oct 13, 2022
Oct 4, 2022
May 7, 2021
May 7, 2021
May 7, 2021
Apr 1, 2021
Feb 15, 2021
Feb 15, 2021
Feb 15, 2021
Feb 15, 2021
Dec 14, 2020
Dec 7, 2020
Sep 2, 2020
Aug 17, 2020
Aug 17, 2020
Aug 11, 2020
Jul 29, 2020
Jul 22, 2020
Jul 8, 2020
Jul 8, 2020
Jul 8, 2020
Jun 24, 2020
Jun 24, 2020
Jun 11, 2020
Apr 22, 2020
Apr 22, 2020
Apr 3, 2020
Jun 17, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 27, 2019
Apr 29, 2019
Apr 29, 2019
Apr 29, 2019
Feb 18, 2019
Feb 18, 2019
Feb 18, 2019
Jan 11, 2019
Jan 8, 2019
Dec 13, 2018
Nov 23, 2018
Nov 23, 2018
Nov 23, 2018
Nov 23, 2018
Nov 23, 2018
Nov 23, 2018
Nov 23, 2018