B66B 1/40
And for correct levelling at landings
Official title: and for correct levelling at landings
B66B1/40 (And for correct levelling at landings) appears on 130 US grants and 93 published applications in this corpus.
Search patents in B66B- Granted patents
- 130
- Published applications
- 93
- Assignees
- 47
- Inventors
- 282
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 2 |
| 2004 | 3 | 1 |
| 2005 | 1 | 5 |
| 2006 | 4 | 4 |
| 2007 | 2 | 4 |
| 2008 | 4 | 2 |
| 2009 | 4 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 4 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 4 | 8 |
| 2016 | 2 | 4 |
| 2017 | 7 | 6 |
| 2018 | 3 | 8 |
| 2019 | 5 | 9 |
| 2020 | 6 | 7 |
| 2021 | 3 | 3 |
| 2022 | 2 | 4 |
| 2023 | 1 | 5 |
| 2024 | 3 | 5 |
| 2025 | 4 | 4 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Autonomous human-machine-interface in the form of a landing operation panel or a landing information panel for an elevator installation28 Jul 2026US 12,692,122 B2Inventio AG
- Precise elevator car speed and position system7 Apr 2026US 12,595,152 B2TK Elevator Corporation
- Method for controlling an elevator installation by using a computer-controlled mobile device31 Mar 2026US 12,589,972 B2Inventio AG
- Elevator controller for leveling process optimization24 Feb 2026US 12,559,344 B2Cedes AG
- Method and system for an automatic rescue operation of an elevator car14 Oct 2025US 12,441,587 B2Kone Corporation
- Elevator system3 Sep 2026US 2026/0257889 A1Mitsubishi Electric Corporation
- Elevator system comprising an elevator car tracking system23 Apr 2026US 2026/0109571 A1Otis Elevator Company
- Elevator controller19 Jun 2025US 2025/0197165 A1Cedes AG
- Elevator system installation verification10 Apr 2025US 2025/0115458 A1Otis Elevator Company
- Floor position detection device of an elevator system27 Feb 2025US 2025/0066158 A1Inventio AG
Most cited
By later US patents
- Twin post, telescoping jack hydraulic elevator system35US 5,597,987 ADelaware Capital Formation, Inc. · 1997
- Arrangement for detecting elevator car position33US 5,509,505 AOtis Elevator Company · 1996
- Method for monitoring elevator leveling performance with improved accuracy31US 5,889,239 AOtis Elevator Company · 1999
- Unitary elevator up level control valve28US 4,011,888 AElevator Equipment Co. · 1977
- Elevator system leveling safeguard control and method25US 4,785,914 AWestinghouse Electric Corp. · 1988