B66B 2201/301
Shafts divided into zones
B66B2201/301 (Shafts divided into zones) appears on 68 US grants and 52 published applications in this corpus.
Search patents in B66B- Granted patents
- 68
- Published applications
- 52
- Assignees
- 18
- Inventors
- 90
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 2 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 1 | 4 |
| 2006 | 5 | 1 |
| 2007 | 1 | 5 |
| 2008 | 2 | 1 |
| 2009 | 3 | 0 |
| 2010 | 2 | 3 |
| 2011 | 2 | 4 |
| 2012 | 3 | 1 |
| 2013 | 2 | 2 |
| 2014 | 2 | 2 |
| 2015 | 0 | 2 |
| 2016 | 1 | 3 |
| 2017 | 3 | 4 |
| 2018 | 2 | 3 |
| 2019 | 2 | 2 |
| 2020 | 2 | 4 |
| 2021 | 1 | 3 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
| 2024 | 3 | 0 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control of an elevator system16 Jun 2026US 12,654,983 B2Kone Corporation
- Elevator system having two shafts25 Nov 2025US 12,479,700 B2TK Elevator Innovation and Operations GmbH
- Destination calls across multiple elevator groups15 Oct 2024US 12,116,240 B2Otis Elevator Company
- Super group architecture with advanced building wide dispatching logic—distributed group architecture10 Sep 2024US 12,084,308 B2Otis Elevator Company
- Automatic cognitive analysis of elevators to reduce passenger wait time6 Aug 2024US 12,054,355 B2Otis Elevator Company
- Counterweight monitoring device8 Sep 2022US 2022/0281718 A1Otis Elevator Company
- Method and elevator arrangement28 Apr 2022US 2022/0127107 A1Kone Corporation
- Destination dispatch sectoring29 Jul 2021US 2021/0229951 A1Otis Elevator Company
- Elevator system having two shafts13 May 2021US 2021/0139282 A1thyssenkrupp Elevator Innovation and Operations AG
- Control of an elevator system25 Feb 2021US 2021/0053794 A1Kone Corporation
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
- Relative system response elevator call assignments42US 4,363,381 AOtis Elevator Company · 1982
- Elevator system floor call registering circuit33US 4,836,336 AInventio AG · 1989
- Control system for a plurality of groups of lifts with destination call control system32US 6,065,570 AInventio AG · 2000