B66B 13/20
Lock mechanisms actuated mechanically by abutments or projections on the cages
B66B13/20 (Lock mechanisms actuated mechanically by abutments or projections on the cages) appears on 59 US grants and 49 published applications in this corpus.
Search patents in B66B- Granted patents
- 59
- Published applications
- 49
- Assignees
- 22
- Inventors
- 105
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 4 |
| 2007 | 1 | 1 |
| 2008 | 4 | 3 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 0 | 4 |
| 2016 | 1 | 0 |
| 2017 | 4 | 2 |
| 2018 | 0 | 3 |
| 2019 | 2 | 7 |
| 2020 | 4 | 6 |
| 2021 | 7 | 5 |
| 2022 | 6 | 1 |
| 2023 | 9 | 3 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Elevator car door locking device and elevator equipment25 Nov 2025US 12,479,701 B2Otis Elevator Company
- Elevator car door lock8 Oct 2024US 12,110,209 B1The Peelle Company
- Elevator car door interlock24 Oct 2023US 11,795,033 B2Otis Elevator Company
- Elevator door interlock assembly10 Oct 2023US 11,780,710 B1Atlas Elevator Components, Inc.
- Elevator car door control system3 Oct 2023US 11,772,937 B2G.A.L. Manufacturing Company, LLC
- Car door interlock13 Aug 2026US 2026/0233975 A1Otis Elevator Company
- Lock hook assembly, door hanging plate assembly, hall door lock device, and elevator system9 Jul 2026US 2026/0193060 A1Otls Elevator Company
- Lost motion slider for operating an elevator car door interlock21 May 2026US 2026/0138851 A1Otis Elevator Company
- Reversible door interlock for elevators6 Feb 2025US 2025/0042697 A1
- Elevator car door lock24 Oct 2024US 2024/0351827 A1The Peelle Company
Most cited
By later US patents
- Elevator evacuation deterrent device25US 5,819,877 AOtis Elevator Company · 1998
- Vehicle door lock for limiting door opening to specified vehicle positions22US 4,364,454 AG.A.L. Manufacturing Company, LLC · 1982
- Car door safety interlock20US 4,313,525 AMontgomery Elevator Company · 1982
- Vehicle door lock for limiting door opening to specified vehicle positions18US 4,423,799 AG.A.L. Manufacturing Company, LLC · 1984
- Elevator door apparatus16US 7,350,623 B2Toshiba Elevator Kabushiki Kaisha · 2008