B66B 5/22
By means of linearly-movable wedges
Official title: by means of linearly-movable wedges (B66B5/24 takes precedence)
B66B5/22 (By means of linearly-movable wedges) appears on 165 US grants and 162 published applications in this corpus.
Search patents in B66B- Granted patents
- 165
- Published applications
- 162
- Assignees
- 45
- Inventors
- 326
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 4 |
| 2003 | 1 | 2 |
| 2004 | 3 | 1 |
| 2005 | 0 | 0 |
| 2006 | 4 | 1 |
| 2007 | 1 | 3 |
| 2008 | 0 | 3 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 2 |
| 2012 | 2 | 4 |
| 2013 | 1 | 5 |
| 2014 | 1 | 8 |
| 2015 | 2 | 5 |
| 2016 | 6 | 7 |
| 2017 | 9 | 18 |
| 2018 | 7 | 13 |
| 2019 | 14 | 14 |
| 2020 | 11 | 20 |
| 2021 | 9 | 6 |
| 2022 | 19 | 11 |
| 2023 | 12 | 14 |
| 2024 | 13 | 6 |
| 2025 | 10 | 7 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Elevator safety device25 Aug 2026US 12,715,736 B2Otis Elevator Company
- Resetting a safety actuator in an elevator system4 Aug 2026US 12,698,185 B2Otis Elevator Company
- Electromechanical safety actuation of elevator governors2 Jun 2026US 12,643,769 B2Otis Elevator Company
- Elevator device28 Apr 2026US 12,612,286 B2Hitachi, Ltd.
- Elevator safety device and method of activating an elevator safety device17 Mar 2026US 12,577,083 B2Otis Elevator Company
- Electronic safety actuator system, elevator car and counterweight10 Sep 2026US 2026/0265020 A1Otis Elevator Company
- Elevator safety actuator systems16 Jul 2026US 2026/0200700 A1Otis Elevator Company
- Elevator safety brake arrangement4 Jun 2026US 2026/0152365 A1Otis Elevator Company
- Multi-supported beam as elastic member for progressive safeties4 Jun 2026US 2026/0152366 A1Otis Elevator Company
- Electromechanical safety actuation of elevator governors23 Apr 2026US 2026/0109574 A1Otis Elevator Company
Most cited
By later US patents
- Elevator safety apparatus44US 5,096,020 AKone Elevator GmbH · 1992
- Remotely resettable ropeless emergency stopping device for an elevator42US 7,575,099 B2Otis Elevator Company · 2009
- Braking device for an elevator36US 5,363,942 AKabushiki Kaisha Toshiba · 1994
- Progressive safety33US 4,538,706 AOtis Elevator Company · 1985
- Safety brake arrangement for elevators31US 5,230,406 A1993