B66B 5/0093
Testing of safety devices
Official title: {Testing of safety devices}
B66B5/0093 (Testing of safety devices) appears on 48 US grants and 64 published applications in this corpus.
Search patents in B66B- Granted patents
- 48
- Published applications
- 64
- Assignees
- 24
- Inventors
- 141
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 4 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 2 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 2 | 0 |
| 2015 | 2 | 1 |
| 2016 | 2 | 4 |
| 2017 | 0 | 3 |
| 2018 | 3 | 12 |
| 2019 | 4 | 5 |
| 2020 | 8 | 8 |
| 2021 | 3 | 5 |
| 2022 | 3 | 4 |
| 2023 | 5 | 1 |
| 2024 | 4 | 2 |
| 2025 | 3 | 4 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Testing method for unintended car movement protection device for elevators and unintended car movement protection device for elevators14 Jul 2026US 12,679,695 B2Hitachi, Ltd.
- Method for testing a brake of a hoisting machine and system10 Feb 2026US 12,545,553 B2Kone Corporation
- Elevator operation quality detecting system and detecting method18 Nov 2025US 12,473,175 B2Fujian Special Equipment Inspection and Research Institute
- Guidance on safety inspection operations of functional component of elevator system19 Aug 2025US 12,391,519 B2Otis Elevator Company
- Elevator system22 Apr 2025US 12,280,984 B2Otis Elevator Company
- Method of doing maintenance on an elevator26 Mar 2026US 2026/0084928 A1Inventio AG
- Safety method and an elevator drive system for an elevator system comprising reduced buffers26 Mar 2026US 2026/0084929 A1Kone Corporation
- Lift safety system and method for testing functionality thereof26 Feb 2026US 2026/0054963 A1Otis Elevator Company
- Modular elevator system with configurable architecture5 Feb 2026US 2026/0035215 A1Otis Elevator Company
- Method and elevator6 Nov 2025US 2025/0340400 A1Kone Corporation
Most cited
By later US patents
- Device for monitoring a control unit22US 5,487,448 AFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. · 1996
- Elevator arrangement19US 7,222,698 B2Kone Corporation · 2007
- Safety device of elevator and its operation testing method16US 7,575,102 B2Mitsubishi Denki Kabushiki Kaisha · 2009
- Elevator diagnostic display system11US 4,936,419 AMontgomery Elevator Company · 1990
- Single brakeshoe test (electrical) for elevators7US 8,746,413 B2Otis Elevator Company · 2014