Patent No. EP3348506 (titled "Communication System And Method Of Communication In An Elevator Operating Environment") was filed by Otis Elevator on Jan 12, 2018. The application was issued on Mar 9, 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.
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
Oct 14, 2025
Oct 14, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 7, 2025
Mar 7, 2025
Feb 12, 2025
Feb 7, 2025
Feb 7, 2025
Feb 7, 2025
Jan 17, 2025
Jan 17, 2025
Jan 13, 2025
Jan 7, 2025
Jan 7, 2025
Jan 7, 2025
Jan 7, 2025
Jan 7, 2025
Jan 7, 2025
Jan 7, 2025
Jan 7, 2025
Jan 7, 2025
Jan 7, 2025
Jan 7, 2025
Jan 7, 2025
Jan 7, 2025
Jan 7, 2025
Jan 7, 2025
Jan 7, 2025
Jan 6, 2025
Jan 6, 2025
Jan 6, 2025
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Jul 31, 2024
Jul 31, 2024
Jul 31, 2024
Jul 31, 2024
Jul 31, 2024
Jul 31, 2024
Jul 31, 2024
Jun 28, 2023
Jun 23, 2023
Jun 23, 2023
Jun 23, 2023
May 4, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Dec 30, 2022
Dec 21, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 15, 2022
Dec 14, 2022
Dec 9, 2022
Dec 9, 2022
Dec 9, 2022
Dec 9, 2022
Dec 9, 2022
Dec 9, 2022
Dec 9, 2022
Mar 22, 2022
Feb 10, 2022
Jan 31, 2022
Jan 31, 2022
Jan 31, 2022
Jan 31, 2022
Jan 31, 2022
Jan 31, 2022
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Apr 19, 2021
Apr 19, 2021
Apr 19, 2021
Apr 14, 2021
Apr 7, 2021
Dec 8, 2020
Dec 8, 2020
Sep 23, 2020
Sep 23, 2020
Sep 23, 2020
Jun 23, 2020
Jun 23, 2020
May 18, 2020
Jan 16, 2019
Jan 16, 2019
Jan 16, 2019
Jan 16, 2019
Jan 16, 2019
Dec 14, 2018
Jul 23, 2018
Jun 20, 2018
Jun 4, 2018
Jun 4, 2018
Jun 4, 2018
Jun 4, 2018
May 24, 2018
May 24, 2018
May 24, 2018
May 24, 2018
May 22, 2018
May 11, 2018
May 11, 2018
Mar 20, 2018
Mar 13, 2018
Jan 29, 2018
Jan 12, 2018
Jan 12, 2018
Jan 12, 2018
Jan 12, 2018
Jan 12, 2018
Jan 12, 2018