B66B 5/027
To permit passengers to leave an elevator car in case of failure
Official title: {to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door}
B66B5/027 (To permit passengers to leave an elevator car in case of failure) appears on 210 US grants and 233 published applications in this corpus.
Search patents in B66B- Granted patents
- 210
- Published applications
- 233
- Assignees
- 53
- Inventors
- 455
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 3 |
| 2002 | 7 | 6 |
| 2003 | 5 | 8 |
| 2004 | 4 | 3 |
| 2005 | 9 | 5 |
| 2006 | 3 | 3 |
| 2007 | 0 | 9 |
| 2008 | 5 | 9 |
| 2009 | 7 | 2 |
| 2010 | 4 | 8 |
| 2011 | 3 | 9 |
| 2012 | 6 | 5 |
| 2013 | 4 | 2 |
| 2014 | 6 | 3 |
| 2015 | 2 | 4 |
| 2016 | 1 | 9 |
| 2017 | 6 | 17 |
| 2018 | 10 | 22 |
| 2019 | 7 | 20 |
| 2020 | 7 | 17 |
| 2021 | 15 | 9 |
| 2022 | 15 | 11 |
| 2023 | 11 | 10 |
| 2024 | 5 | 14 |
| 2025 | 8 | 13 |
| 2026 | 13 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Setting a rescue time period25 Aug 2026US 12,715,735 B2Otis Elevator Company
- Safety control device11 Aug 2026US 12,703,606 B2Otis Elevator Company
- Elevator safety braking device21 Jul 2026US 12,686,594 B2
- Elevator car emergency ladder systems21 Jul 2026US 12,686,596 B2Otis Elevator Company
- Seal assembly for an elevator cabin and a method to operate the same30 Jun 2026US 12,668,457 B2
- Brake system17 Sep 2026US 2026/0274614 A1Inventio AG
- Arrangement for operating an elevator27 Aug 2026US 2026/0250100 A1Kone Corporation
- Elevator system with capacitor pre-charge30 Jul 2026US 2026/0217493 A1Otis Elevator Company
- Method for switching off the operation of an elevator, and elevator controller16 Jul 2026US 2026/0200696 A1Inventio AG
- Elevator safety controller, elevator system, and method for causing emergency stop for elevator car9 Jul 2026US 2026/0193054 A1Kone Corporation
Most cited
By later US patents
- Apparatus and method for controlling operation of elevator in power failure69US 6,315,081 B1LG Industrial Systems Co., Ltd. · 2001
- Device for driving elevator at service interruption54US 5,285,029 AMitsubishi Denki Kabushiki Kaisha · 1994
- Method for controlling rescue operation of elevator car during power failure39US 6,264,005 B1LG Industrial Systems Co., Ltd. · 2001
- Elevator controller39US 6,827,182 B2Mitsubishi Denki Kabushiki Kaisha · 2004
- Method and apparatus for fault time operating of an elevator _38US 4,506,766 AMitsubishi Denki Kabushiki Kaisha · 1985