Patent No. EP3825501 (titled "Sealing Tape") was filed by ISO Chemie on Nov 22, 2019. The application was issued on Jun 7, 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 |
|---|---|---|
| TREMCO CPG GERMANY | Mar 7, 2024 | BITTNER |
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
Apr 15, 2026
Apr 13, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Mar 25, 2026
Mar 23, 2026
Mar 17, 2026
Mar 17, 2026
Sep 22, 2025
Sep 22, 2025
Sep 22, 2025
Sep 22, 2025
Sep 22, 2025
Sep 22, 2025
Sep 22, 2025
Sep 22, 2025
Sep 22, 2025
Sep 22, 2025
Sep 22, 2025
Sep 22, 2025
Nov 5, 2024
Aug 2, 2024
Jul 26, 2024
Jul 26, 2024
Jul 26, 2024
Jul 26, 2024
Jul 26, 2024
Jul 26, 2024
Jul 26, 2024
Mar 26, 2024
Mar 26, 2024
Mar 18, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Jun 20, 2023
May 11, 2023
Feb 20, 2023
Feb 20, 2023
Feb 20, 2023
Feb 20, 2023
Feb 20, 2023
Feb 20, 2023
Nov 3, 2022
Nov 3, 2022
Nov 3, 2022
Nov 3, 2022
Nov 3, 2022
Nov 3, 2022
Sep 21, 2022
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
May 31, 2021
Apr 29, 2021
May 27, 2020
May 27, 2020
May 27, 2020
May 27, 2020
May 11, 2020
Jan 15, 2020
Nov 22, 2019
Nov 22, 2019
Nov 22, 2019
Nov 22, 2019
Nov 22, 2019
Nov 22, 2019