B66B 5/18
And applying frictional retarding forces
Official title: and applying frictional retarding forces
B66B5/18 (And applying frictional retarding forces) appears on 475 US grants and 446 published applications in this corpus.
Search patents in B66B- Granted patents
- 475
- Published applications
- 446
- Assignees
- 111
- Inventors
- 772
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 10 | 0 |
| 1992 | 6 | 0 |
| 1993 | 15 | 0 |
| 1994 | 9 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 11 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 2 |
| 2002 | 5 | 5 |
| 2003 | 3 | 5 |
| 2004 | 6 | 8 |
| 2005 | 0 | 3 |
| 2006 | 10 | 4 |
| 2007 | 3 | 13 |
| 2008 | 2 | 8 |
| 2009 | 9 | 7 |
| 2010 | 7 | 9 |
| 2011 | 4 | 8 |
| 2012 | 11 | 13 |
| 2013 | 6 | 11 |
| 2014 | 4 | 17 |
| 2015 | 11 | 25 |
| 2016 | 13 | 18 |
| 2017 | 27 | 40 |
| 2018 | 24 | 35 |
| 2019 | 32 | 36 |
| 2020 | 25 | 50 |
| 2021 | 26 | 25 |
| 2022 | 38 | 30 |
| 2023 | 36 | 24 |
| 2024 | 32 | 26 |
| 2025 | 15 | 14 |
| 2026 | 15 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electromechanical sensing and safety actuation of elevator governors15 Sep 2026US 12,735,298 B1Otis Elevator Company
- Suspension device and use thereof in an elevator system, and method8 Sep 2026US 12,729,095 B2Inventio AG
- Compact electromechanical activation system for a lift safety device8 Sep 2026US 12,729,096 B2Dynatech, Dynamics & Technology, S.L.
- Brake system for use in shaft and inclined conveyor systems1 Sep 2026US 12,722,940 B2SIEMAG TECBERG GmbH
- Elevator safety device25 Aug 2026US 12,715,736 B2Otis Elevator Company
- Elevator apparatus17 Sep 2026US 2026/0274616 A1Hitachi, Ltd.
- 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
- Braking device for braking an elevator car of an elevator installation9 Jul 2026US 2026/0193055 A1Inventio AG
- Elevator2 Jul 2026US 2026/0184538 A1Hitachi, Ltd.
Most cited
By later US patents
- Brake regulating apparatus for an elevator car118US 5,648,644 AInventio AG · 1997
- Safety mechanism for preventing unintended motion in traction elevators57US 4,923,055 ADelaware Capital Formation, Inc. · 1990
- Elevator safety apparatus44US 5,096,020 AKone Elevator GmbH · 1992
- Magnetic latch mechanism and method particularly for linear and rotatable brakes44US 5,791,442 AOrscheln Management Co. · 1998
- Remotely resettable ropeless emergency stopping device for an elevator42US 7,575,099 B2Otis Elevator Company · 2009