B66B 11/028
Active systems
Official title: {Active systems}
B66B11/028 (Active systems) appears on 30 US grants and 21 published applications in this corpus.
Search patents in B66B- Granted patents
- 30
- Published applications
- 21
- Assignees
- 13
- Inventors
- 66
- Latest grant
- 5 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 3 |
| 2003 | 0 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 4 |
| 2018 | 1 | 1 |
| 2019 | 3 | 1 |
| 2020 | 1 | 4 |
| 2021 | 2 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Stabilizing assemblies and methods of use thereof5 Dec 2023US 11,834,300 B2TK Elevator Innovation and Operations GmbH
- Electronic safety actuator electromagnetic guidance31 May 2022US 11,345,570 B2Otis Elevator Company
- Elevator device5 Oct 2021US 11,136,220 B2Mitsubishi Electric Corporation
- Self-propelled elevators and elevator brake systems14 Sep 2021US 11,117,783 B2
- Elevator car roller guide and method of use26 May 2020US 10,662,031 B2Inventio AG
- Stabilizing assemblies and methods of use thereof16 Feb 2023US 2023/0047079 A1TK Elevator Innovation and Operations GmbH
- Autonomous elevator car movers configured with coupling devices for vibration damping3 Feb 2022US 2022/0033223 A1Otis Elevator Company
- Elevator system and method for operating an elevator system13 Aug 2020US 2020/0255259 A1thyssenkrupp AG
- Self-propelled elevators and elevator brake systems20 Feb 2020US 2020/0055701 A1
- Electronic safety actuator electromagnetic guidance2 Jan 2020US 2020/0002130 A1Otis Elevator Company
Most cited
By later US patents
- Procedure and apparatus for damping the vibrations of an elevator car36US 5,027,925 AKone Elevator GmbH · 1991
- Active vibration control system for an elevator, which reduces horizontal and rotational forces acting on the car34US 5,294,757 AOtis Elevator Company · 1994
- Elevator car mounting assembly25US 4,899,852 AOtis Elevator Company · 1990
- Elevator horizontal suspensions and controls25US 5,304,751 AOtis Elevator Company · 1994
- Elevator system20US 5,584,364 A1996