B66B 5/0043
Devices enhancing safety during maintenance
Official title: {Devices enhancing safety during maintenance}
B66B5/0043 (Devices enhancing safety during maintenance) appears on 192 US grants and 280 published applications in this corpus.
Search patents in B66B- Granted patents
- 192
- Published applications
- 280
- Assignees
- 29
- Inventors
- 509
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 2 |
| 2003 | 3 | 1 |
| 2004 | 1 | 5 |
| 2005 | 0 | 4 |
| 2006 | 2 | 4 |
| 2007 | 5 | 7 |
| 2008 | 3 | 8 |
| 2009 | 3 | 4 |
| 2010 | 4 | 8 |
| 2011 | 6 | 6 |
| 2012 | 8 | 6 |
| 2013 | 6 | 5 |
| 2014 | 4 | 7 |
| 2015 | 2 | 7 |
| 2016 | 5 | 6 |
| 2017 | 9 | 10 |
| 2018 | 6 | 32 |
| 2019 | 10 | 41 |
| 2020 | 18 | 20 |
| 2021 | 23 | 22 |
| 2022 | 15 | 11 |
| 2023 | 20 | 8 |
| 2024 | 10 | 22 |
| 2025 | 7 | 17 |
| 2026 | 13 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Protective roof with an adjustable width and depth for installing in an elevator shaft25 Aug 2026US 12,715,738 B2Inventio AG
- Elevator safety monitoring system, elevator system, elevator drive unit, and method for operating an elevator18 Aug 2026US 12,709,518 B2Kone Corporation
- Systems and method for detecting a location of a person in a hoistway28 Jul 2026US 12,692,125 B2Otis Elevator Company
- Elevator pit safety system and methods of use thereof21 Jul 2026US 12,686,593 B2Electronic Controls Company
- Elevator car roof system and a control system for monitoring an opening state of an elevator car roof19 May 2026US 12,630,390 B2Kone Corporation
- Activation and/or deactivation of a temporary refuge space23 Jul 2026US 2026/0209005 A1Kone Corporation
- Method and apparatus for providing hoistway access security in a lift system16 Jul 2026US 2026/0200698 A1Otis Elevator Company
- Elevator car roof protection device, elevator car and elevator system16 Jul 2026US 2026/0200699 A1Otis Elevator Company
- Lift system9 Jul 2026US 2026/0193056 A1Inventio AG
- Elevator remote main line disconnect device and system25 Jun 2026US 2026/0176104 A1
Most cited
By later US patents
- Elevator hatch door monitoring system102US 5,644,111 ANew York City Housing Authority · 1997
- Automatic protection of elevator mechanics38US 6,202,797 B1Otis Elevator Company · 2001
- Elevator system control responsive to hoistway access detection38US 7,954,606 B2Otis Elevator Company · 2011
- Hoistway intrusion detection34US 6,550,585 B2Otis Elevator Company · 2003
- Elevator car with maintenance window28US 8,316,998 B2Inventio AG · 2012