B66B 2201/224
Avoiding potential interference between elevator cars
B66B2201/224 (Avoiding potential interference between elevator cars) appears on 19 US grants and 14 published applications in this corpus.
Search patents in B66B- Granted patents
- 19
- Published applications
- 14
- Assignees
- 9
- Inventors
- 30
- Latest grant
- 10 Aug 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 3 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 2 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for operating a lift system, and lift system10 Aug 2021US 11,084,687 B2TK Elevator Innovation and Operations GmbH
- Elevator system with an elevator group-control device for controlling a plurality of cars30 May 2017US 9,663,324 B2Mitsubishi Electric Corporation
- Elevator control and method for independently movable cars in a common shaft9 Sep 2014US 8,827,043 B2Inventio AG
- Elevator control of an elevator installation3 Jun 2014US 8,739,936 B2Inventio AG
- Coordination of multiple elevator cars in a hoistway30 Oct 2012US 8,297,409 B2Otis Elevator Company
- Elevator system having shaft-changing units and method for operating an elevator system having shaft-changing units8 Oct 2020US 2020/0317468 A1thyssenkrupp Elevator Innovation and Operations AG
- Method for operating a lift system, and lift system19 Jul 2018US 2018/0201472 A1thyssenkrupp AG
- Elevator group-control device2 Oct 2014US 2014/0291077 A1Mitsubishi Electric Corporation
- Elevator control of an elevator installation19 Jan 2012US 2012/0012427 A1Inventio AG
- Elevator control of an elevator installation10 Nov 2011US 2011/0272220 A1Inventio AG
Most cited
By later US patents
- Elevator control system68US 5,663,538 A1997
- Elevator system with multiple cars in the same hoistway55US 5,419,414 A1995
- Elevator group management control apparatus and elevator group management control method46US 5,865,274 AKabushiki Kaisha Toshiba · 1999
- Elevator system, including control method for controlling, multiple cars in a single shaft33US 6,360,849 B1Mitsubishi Denki Kabushiki Kaisha · 2002
- Elevator system controller and method of controlling elevator system with two elevator cars in single shaft32US 6,364,065 B1Mitsubishi Denki Kabushiki Kaisha · 2002