Patent No. EP2477925 (titled "Method And Arrangement For Preventing The Drifting Of An Elevator Car") was filed by Kone on Sep 8, 2010. The application was issued on Dec 28, 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 |
|---|---|---|
| OTIS ELEVATOR | Sep 27, 2023 | WINTER |
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
Dec 18, 2025
Dec 18, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Nov 17, 2025
Nov 17, 2025
Nov 17, 2025
Nov 7, 2025
Aug 8, 2025
Aug 8, 2025
Aug 8, 2025
Aug 8, 2025
Aug 8, 2025
Aug 8, 2025
Aug 8, 2025
Aug 8, 2025
Aug 8, 2025
Aug 8, 2025
Aug 8, 2025
Aug 8, 2025
Aug 7, 2025
Jun 10, 2025
Apr 17, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 1, 2025
Mar 24, 2025
Mar 24, 2025
Mar 24, 2025
Mar 20, 2025
Mar 18, 2025
Mar 12, 2025
Mar 12, 2025
Mar 12, 2025
Mar 11, 2025
Mar 11, 2025
Mar 11, 2025
Mar 11, 2025
Nov 8, 2024
Nov 8, 2024
Nov 8, 2024
Nov 8, 2024
Nov 8, 2024
Oct 31, 2024
Jul 11, 2024
Jul 4, 2024
Jul 4, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Jun 24, 2024
Jun 24, 2024
Feb 26, 2024
Feb 20, 2024
Feb 20, 2024
Feb 15, 2024
Feb 9, 2024
Feb 9, 2024
Feb 9, 2024
Feb 9, 2024
Feb 9, 2024
Oct 11, 2023
Oct 11, 2023
Oct 5, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Sep 27, 2023
Jan 11, 2023
Dec 1, 2022
Nov 18, 2022
Nov 18, 2022
Nov 18, 2022
Nov 18, 2022
Nov 18, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Aug 17, 2022
Aug 17, 2022
Aug 17, 2022
Aug 18, 2021
Aug 18, 2021
Aug 18, 2021
Aug 18, 2021
Aug 18, 2021
Aug 18, 2021
Aug 18, 2021
Jun 29, 2021
Jun 24, 2021
Jun 24, 2021
Jun 24, 2021
Feb 25, 2021
Feb 25, 2021
Aug 27, 2019
Aug 27, 2019
Aug 27, 2019
Jun 26, 2019
Jun 14, 2019
Jun 14, 2019
Jun 14, 2019
Feb 27, 2019
Feb 27, 2019
Aug 19, 2016
Aug 19, 2016
Aug 19, 2016
Aug 19, 2016
Aug 19, 2016
Apr 22, 2016
Apr 22, 2016
Feb 3, 2016
Feb 3, 2016
Feb 3, 2016
Feb 3, 2016
Feb 3, 2016
Feb 3, 2016
Feb 3, 2016
Aug 4, 2015
Jul 16, 2015
Jul 16, 2015
Jul 16, 2015
Aug 20, 2014
Aug 14, 2014
Jul 16, 2013
Jan 8, 2013
Jan 2, 2013
Dec 20, 2012
Dec 11, 2012
Jun 27, 2012
Apr 24, 2012
Apr 12, 2012
Mar 16, 2012
Mar 1, 2012
Mar 1, 2012
Feb 15, 2012
Feb 15, 2012
Feb 15, 2012
Jan 27, 2012
Apr 13, 2011
Mar 24, 2011
Mar 24, 2011