B66B 5/28
Buffer-stops for cars, cages, or skips
B66B5/28 (Buffer-stops for cars, cages, or skips) appears on 73 US grants and 85 published applications in this corpus.
Search patents in B66B- Granted patents
- 73
- Published applications
- 85
- Assignees
- 36
- Inventors
- 202
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 2 | 3 |
| 2005 | 0 | 1 |
| 2006 | 2 | 4 |
| 2007 | 2 | 3 |
| 2008 | 0 | 7 |
| 2009 | 0 | 0 |
| 2010 | 1 | 4 |
| 2011 | 2 | 2 |
| 2012 | 4 | 3 |
| 2013 | 2 | 2 |
| 2014 | 3 | 0 |
| 2015 | 0 | 2 |
| 2016 | 2 | 2 |
| 2017 | 1 | 6 |
| 2018 | 4 | 9 |
| 2019 | 2 | 7 |
| 2020 | 4 | 9 |
| 2021 | 11 | 8 |
| 2022 | 7 | 5 |
| 2023 | 4 | 2 |
| 2024 | 2 | 0 |
| 2025 | 1 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Emergency terminal deceleration in elevator systems24 Feb 2026US 12,559,343 B2Otis Elevator Company
- Elevator system having two shafts25 Nov 2025US 12,479,700 B2TK Elevator Innovation and Operations GmbH
- Safety arrangement, elevator system, and method for preventing derailment of an elevator car at a turning station of an elevator system8 Oct 2024US 12,110,212 B2Kone Corporation
- Double impact area buffer for improved plank27 Feb 2024US 11,912,538 B2Otis Elevator Company
- Vehicle with shock absorption for transporting passengers on a variable slope track and installation comprising said vehicle1 Aug 2023US 11,713,212 B2Poma
- Pit buffer stand, elevator system and method of using the pit buffer stand for maintaining an elevator system18 Jun 2026US 2026/0167457 A1Otis Elevator Company
- Effective gravity control device installed in building2 Apr 2026US 2026/0091954 A1Liin Technologies Incorporated
- Underpan for lifting systems26 Jun 2025US 2025/0206569 A1Liftup A/S
- Elevator system and method for operating an elevator system6 Feb 2025US 2025/0042694 A1Inventio AG
- Double impact area buffer for improved plank29 Jun 2023US 2023/0202799 A1Otis Elevator Company
Most cited
By later US patents
- Elevator24US 5,289,902 AKabushiki Kaisha Toshiba · 1994
- Compensation and rope elongation arrangement23US 5,513,724 AKone Corporation · 1996
- Elevator without a machine room19US 6,691,833 B1Inventio AG · 2004
- Safety arrangement for a hoist18US 6,736,242 B2Alimak AB · 2004
- Collison prevention in hoistway with two elevator cars16US 7,819,228 B2Otis Elevator Company · 2010