B66B 13/24
Safety devices in passenger lifts, not otherwise provided for, for preventing trapping
Official title: Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
B66B13/24 (Safety devices in passenger lifts, not otherwise provided for, for preventing trapping) appears on 232 US grants and 205 published applications in this corpus.
Search patents in B66B- Granted patents
- 232
- Published applications
- 205
- Assignees
- 70
- Inventors
- 449
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 3 |
| 2003 | 3 | 3 |
| 2004 | 2 | 4 |
| 2005 | 2 | 5 |
| 2006 | 6 | 6 |
| 2007 | 4 | 6 |
| 2008 | 4 | 5 |
| 2009 | 1 | 7 |
| 2010 | 3 | 2 |
| 2011 | 3 | 11 |
| 2012 | 4 | 6 |
| 2013 | 7 | 6 |
| 2014 | 10 | 8 |
| 2015 | 6 | 6 |
| 2016 | 4 | 6 |
| 2017 | 10 | 10 |
| 2018 | 8 | 19 |
| 2019 | 6 | 23 |
| 2020 | 11 | 20 |
| 2021 | 18 | 10 |
| 2022 | 9 | 7 |
| 2023 | 17 | 7 |
| 2024 | 8 | 10 |
| 2025 | 6 | 11 |
| 2026 | 10 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Elevator6 Oct 2026US 12,753,048 B2Inventio AG
- Elevator door enforcer6 Oct 2026US 12,753,049 B2Ashby Elevator Safety Products, LLC
- Automatic closing door proximity detector15 Sep 2026US 12,735,300 B2Airdri Limited
- Elevator sill clearance protection device and elevator car26 May 2026US 12,637,329 B2Otis Elevator Company
- Elevator system with simplified power supply for shaft door assemblies3 Mar 2026US 12,565,403 B2Inventio AG
- Controlling of an access to an elevator car4 Jun 2026US 2026/0152367 A1Kone Corporation
- Elevator door enforcer16 Apr 2026US 2026/0103362 A1Ashby Elevator Safety Products, LLC
- Elevator18 Dec 2025US 2025/0382157 A1Inventio AG
- Elevator car with retractable apron and elevator system comprising such an elevator car20 Nov 2025US 2025/0353705 A1Otis Elevator Company
- Detection of objects associated with an elevator car6 Nov 2025US 2025/0340402 A1Kone Corporation
Most cited
By later US patents
- Self correcting infrared intrusion detection system88US 5,149,921 AInnovation Industries, Inc. · 1992
- Proximity detector79US 4,910,464 AFormula Systems Limited · 1990
- Doorway safety device77US 4,029,176 A1977
- Detection device having energy transmitters located at vertically spaced apart points along movable doors60US 4,794,248 AOtis Elevator Company · 1988
- Powered sliding door safety system59US 4,621,452 A1986