Patent No. EP3832218 (titled "Control Unit For Opening And Closing Windows And Building Comprising Such A Control Unit") was filed by Kainmller on Dec 3, 2019. The application was issued on Aug 30, 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.
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
May 26, 2026
May 22, 2026
May 22, 2026
May 22, 2026
May 22, 2026
May 22, 2026
May 22, 2026
May 22, 2026
May 22, 2026
May 22, 2026
May 22, 2026
May 22, 2026
May 22, 2026
Mar 24, 2026
Feb 23, 2026
Feb 13, 2026
Feb 13, 2026
Feb 13, 2026
Feb 13, 2026
Feb 13, 2026
Feb 13, 2026
Feb 13, 2026
Feb 13, 2026
Feb 13, 2026
Feb 13, 2026
Feb 2, 2026
Feb 2, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jun 25, 2025
Jun 25, 2025
Jun 25, 2025
Jun 25, 2025
Jun 25, 2025
Jun 16, 2025
Dec 19, 2024
Dec 16, 2024
Dec 16, 2024
Dec 16, 2024
Sep 26, 2024
Sep 24, 2024
Sep 18, 2024
Sep 18, 2024
Sep 18, 2024
Jun 14, 2024
Jun 14, 2024
Jun 4, 2024
May 28, 2024
May 28, 2024
May 28, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
Sep 12, 2023
Aug 3, 2023
Jul 20, 2023
Jul 20, 2023
Jul 20, 2023
Jul 20, 2023
Apr 4, 2023
Apr 4, 2023
Apr 4, 2023
Apr 4, 2023
Apr 4, 2023
Apr 4, 2023
Mar 6, 2023
Nov 5, 2021
Nov 5, 2021
Nov 5, 2021
Nov 5, 2021
Nov 5, 2021
Nov 5, 2021
Nov 5, 2021
Nov 5, 2021
Nov 5, 2021
Nov 5, 2021
Nov 5, 2021
Nov 5, 2021
Nov 5, 2021
Nov 5, 2021
Jun 14, 2021
May 12, 2021
Jun 17, 2020
Jun 17, 2020
Jun 17, 2020
Jun 17, 2020
Jun 2, 2020
Dec 3, 2019
Dec 3, 2019
Dec 3, 2019
Dec 3, 2019
Dec 3, 2019
Dec 3, 2019
Dec 3, 2019