B66B 1/405
For hydraulically actuated elevators
Official title: {for hydraulically actuated elevators}
B66B1/405 (For hydraulically actuated elevators) appears on 43 US grants and 9 published applications in this corpus.
Search patents in B66B- Granted patents
- 43
- Published applications
- 9
- Assignees
- 20
- Inventors
- 72
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 2 |
| 2019 | 0 | 1 |
| 2020 | 3 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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
- Method, elevator control unit, and elevator system for dynamically adjusting a levelling speed limit of an elevator car9 Jun 2020US 10,676,316 B2Kone Corporation
- Hydraulic elevator system with position or speed based valve control7 Apr 2020US 10,611,600 B2Otis Elevator Company
- Elevator dynamic slowdown distance leveling control21 Jan 2020US 10,538,413 B2
- Inverter parameter based hydraulic system control device28 Nov 2017US 9,828,210 B2Yaskawa Europe GmbH
- Apparatus and method for elevator control utilizing logarithmic averaging for consistent leveling times14 Nov 2024US 2024/0375911 A1Smartrise Engineering, Inc.
- Autonomous human-machine-interface in the form of a landing operation panel or a landing information panel for an elevator installation13 Apr 2023US 2023/0111024 A1Inventio AG
- Working machine lifting control device25 Apr 2019US 2019/0116718 A1KYB Corporation
- Hydraulic elevator system with position or speed based valve control27 Dec 2018US 2018/0370757 A1Otis Elevator Company
- Method, elevator control unit, and elevator system for dynamically adjusting a levelling speed limit of an elevator car8 Feb 2018US 2018/0037436 A1Kone Corporation
Most cited
By later US patents
- Twin post, telescoping jack hydraulic elevator system35US 5,597,987 ADelaware Capital Formation, Inc. · 1997
- 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
- Method for removing yarn defects at a winding head of a bobbin winding machine17US 5,862,660 AW. Schlafhorst AG & Co. · 1999