B66B 1/32
Effective on braking devices
Official title: effective on braking devices {, e.g. acting on electrically controlled brakes (brake control H02P, lift brakes per se B66B5/02)}
B66B1/32 (Effective on braking devices) appears on 237 US grants and 269 published applications in this corpus.
Search patents in B66B- Granted patents
- 237
- Published applications
- 269
- Assignees
- 44
- Inventors
- 457
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 3 |
| 2007 | 0 | 1 |
| 2008 | 2 | 2 |
| 2009 | 0 | 8 |
| 2010 | 7 | 9 |
| 2011 | 6 | 9 |
| 2012 | 8 | 5 |
| 2013 | 4 | 12 |
| 2014 | 8 | 4 |
| 2015 | 4 | 10 |
| 2016 | 9 | 10 |
| 2017 | 9 | 40 |
| 2018 | 12 | 32 |
| 2019 | 27 | 17 |
| 2020 | 20 | 27 |
| 2021 | 18 | 18 |
| 2022 | 17 | 26 |
| 2023 | 9 | 9 |
| 2024 | 14 | 14 |
| 2025 | 9 | 6 |
| 2026 | 14 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for controlling an elevator1 Sep 2026US 12,722,936 B2Kone Corporation
- Elevator safety monitoring system, elevator system, elevator drive unit, and method for operating an elevator18 Aug 2026US 12,709,518 B2Kone Corporation
- Self-checking device and method for braking device and elevator system11 Aug 2026US 12,703,605 B2Otis Elevator Company
- Safety control device11 Aug 2026US 12,703,606 B2Otis Elevator Company
- Methods for identifying at least one parameter of a permanent magnet motor of an elevator, elevator drive units, and elevators4 Aug 2026US 12,698,182 B2Kone Corporation
- Elevator system having enhanced elevator car deceleration13 Aug 2026US 2026/0233971 A1Otis Elevator Company
- Elevator safety controller, elevator system, and method for causing emergency stop for elevator car9 Jul 2026US 2026/0193054 A1Kone Corporation
- Apparatus and method for holding brake control28 May 2026US 2026/0145909 A1Otis Elevator Company
- Elevator car mover configured with auxiliary vehicle support for force release control5 Feb 2026US 2026/0035207 A1Otis Elevator Company
- Safe torque off using digital isolator16 Oct 2025US 2025/0320084 A1Otis Elevator Company
Most cited
By later US patents
- Safety mechanism for preventing unintended motion in traction elevators57US 4,923,055 ADelaware Capital Formation, Inc. · 1990
- Lift sheave26US 4,739,969 AJohns Perry Industries Pty. Ltd. · 1988
- Hoist apparatus26US 6,966,544 B2MHE Technologies, Inc. · 2005
- Braking apparatus for elevator cage24US 5,323,878 AHitachi, Ltd. · 1994
- Unintended movement governor24US 7,775,330 B2Kone Corporation · 2010