B66B 1/2458
For elevator systems with multiple shafts and a single car per shaft
Official title: {For elevator systems with multiple shafts and a single car per shaft}
B66B1/2458 (For elevator systems with multiple shafts and a single car per shaft) appears on 339 US grants and 243 published applications in this corpus.
Search patents in B66B- Granted patents
- 339
- Published applications
- 243
- Assignees
- 48
- Inventors
- 444
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 8 | 0 |
| 1989 | 9 | 0 |
| 1990 | 5 | 0 |
| 1991 | 10 | 0 |
| 1992 | 5 | 0 |
| 1993 | 15 | 0 |
| 1994 | 13 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 9 | 0 |
| 1998 | 15 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 9 | 4 |
| 2002 | 6 | 3 |
| 2003 | 5 | 3 |
| 2004 | 3 | 5 |
| 2005 | 3 | 5 |
| 2006 | 6 | 3 |
| 2007 | 1 | 4 |
| 2008 | 2 | 7 |
| 2009 | 8 | 9 |
| 2010 | 4 | 10 |
| 2011 | 9 | 17 |
| 2012 | 14 | 20 |
| 2013 | 11 | 8 |
| 2014 | 8 | 9 |
| 2015 | 17 | 12 |
| 2016 | 10 | 10 |
| 2017 | 10 | 14 |
| 2018 | 13 | 9 |
| 2019 | 8 | 18 |
| 2020 | 9 | 21 |
| 2021 | 4 | 10 |
| 2022 | 6 | 12 |
| 2023 | 9 | 9 |
| 2024 | 8 | 7 |
| 2025 | 13 | 12 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for operating an elevator system and elevator system25 Aug 2026US 12,715,732 B2Kone Corporation
- Solution for overspeed monitoring of an elevator car28 Jul 2026US 12,692,121 B2Kone Corporation
- System and method of enabling a mobile robot to take an elevator autonomously23 Jun 2026US 12,662,351 B2Kunshan League Automechanism Co., Ltd.
- Movement demand estimation and people flow estimation systems and methods28 Apr 2026US 12,614,006 B2Hitachi, Ltd.
- Systems and methods for determining elevator loads24 Mar 2026US 12,583,711 B2Appana Industries LLC
- Controlling an elevator using a mobile device18 Jun 2026US 2026/0167454 A1Inventio AG
- Control of elevator system5 Mar 2026US 2026/0062255 A1Kone Corporation
- System and method of operating an elevator system to select an elevator car of a bank of elevator cars from an elevator health and usage state and a travel time to respond to a service request23 Oct 2025US 2025/0326606 A1Otis Elevator Company
- Systems and methods for parking elevators2 Oct 2025US 2025/0304407 A1Appana Industries LLC
- Systems and methods for dispatching elevators4 Sep 2025US 2025/0276870 A1Appana Industries LLC
Most cited
By later US patents
- Method for transmitting messages in an elevator communications system95US 5,551,532 AOtis Elevator Company · 1996
- Apparatus for the load dependent control of an elevator83US 4,708,224 AInventio AG · 1987
- Apparatus for performing group control on elevators61US 4,760,896 AKabushiki Kaisha Toshiba · 1988
- Queue based elevator dispatching system using peak period traffic prediction53US 4,838,384 AOtis Elevator Company · 1989
- Elevator control system with image pickups in hall waiting areas and elevator cars46US 5,258,586 AHitachi, Ltd. · 1993