B66B 7/044
With magnetic or electromagnetic means
Official title: {with magnetic or electromagnetic means}
B66B7/044 (With magnetic or electromagnetic means) appears on 40 US grants and 38 published applications in this corpus.
Search patents in B66B- Granted patents
- 40
- Published applications
- 38
- Assignees
- 18
- Inventors
- 84
- Latest grant
- 13 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 3 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 2 | 3 |
| 2010 | 2 | 0 |
| 2011 | 3 | 2 |
| 2012 | 1 | 2 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 5 |
| 2019 | 2 | 5 |
| 2020 | 4 | 2 |
| 2021 | 0 | 2 |
| 2022 | 2 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Transport system for an elevator or lift13 May 2025US 12,297,082 B2Ironbox S.R.L.
- Frictionless electronic safety actuator2 Jan 2024US 11,858,781 B2Otis Elevator Company
- Elevator with linear motor13 Dec 2022US 11,524,875 B2Kone Corporation
- Elevator safety gear trigger and reset system4 Oct 2022US 11,459,208 B2Kone Corporation
- Electric linear motor8 Dec 2020US 10,858,219 B2Kone Corporation
- Device for reducing bouncing of elevator car28 Aug 2025US 2025/0270070 A1Hyundai Elevator Co., Ltd.
- Tower lift20 Jun 2024US 2024/0199377 A1Semes Co., Ltd.
- A transport system for an elevator or lift18 Apr 2024US 2024/0124267 A1Ironbox S.R.L.
- Frictionless electronic safety actuator4 May 2023US 2023/0139867 A1Otis Elevator Company
- Passenger conveyor18 Mar 2021US 2021/0078831 A1Kone Corporation
Most cited
By later US patents
- Multi-degree of freedom magnetorheological devices and system for using same133US 5,492,312 ALord Corporation · 1996
- Control system for elevator cage guide magnets30US 4,754,849 AMitsubishi Denki Kabushiki Kaisha · 1988
- Magnetic system for elevator car lateral suspension28US 5,379,864 AOtis Elevator Company · 1995
- Active guide system for elevator cage27US 6,401,872 B1Kabushiki Kaisha Toshiba · 2002
- Elevator active guidance system having a coordinated controller24US 5,652,414 AOtis Elevator Company · 1997