B66B 5/26
Positively-acting devices
Official title: Positively-acting devices, e.g. latches, knives
B66B5/26 (Positively-acting devices) appears on 24 US grants and 21 published applications in this corpus.
Search patents in B66B- Granted patents
- 24
- Published applications
- 21
- Assignees
- 16
- Inventors
- 47
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 3 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 0 |
| 2019 | 2 | 2 |
| 2020 | 1 | 3 |
| 2021 | 1 | 1 |
| 2022 | 4 | 3 |
| 2023 | 2 | 3 |
| 2024 | 2 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Elevator device21 Jul 2026US 12,686,595 B2Hitachi, Ltd.
- Overspeed governor for a stairlift22 Oct 2024US 12,122,642 B2Otolift Trapliften B.V.
- Stairlift overspeed safety system2 Jul 2024US 12,024,402 B2Harmar Mobility, LLC
- Running system for elevator, and multi-car elevator running system12 Dec 2023US 11,840,424 B2Hunan Daju Information Tech Co Ltd
- Stairlift overspeed safety systems14 Mar 2023US 11,603,287 B2Harmar Mobility, LLC
- Car lock device and elevator system23 Apr 2026US 2026/0109575 A1Otis Elevator Company
- Elevator device6 Nov 2025US 2025/0340403 A1Hitachi, Ltd.
- Lifting equipment22 Aug 2024US 2024/0278050 A1Ficont Industry (Beijing) Co., Ltd.
- Stairlift Overspeed Safety System9 Nov 2023US 2023/0356976 A1Harmar Mobility, LLC
- Overspeed governor for a stairlift26 Oct 2023US 2023/0339725 A1Otolift Trapliften B.V.
Most cited
By later US patents
- Fallproof safety parking apparatus16US 5,497,854 A1996
- Safety device arrangement10US 5,411,117 AKone Elevator GmbH · 1995
- Elevator structure and brake system therefor9US 9,457,988 B1Federal Equipment Company · 2016
- Powerless emergency elevator7US 5,368,131 A1994
- Apparatus for preventing drift of an elevator car stopped at a floor5US 5,613,576 AInventio AG · 1997