B66B 1/306
With dc powered elevator drive
Official title: {with DC powered elevator drive}
B66B1/306 (With dc powered elevator drive) appears on 22 US grants and 16 published applications in this corpus.
Search patents in B66B- Granted patents
- 22
- Published applications
- 16
- Assignees
- 8
- Inventors
- 44
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 5 |
| 2020 | 1 | 4 |
| 2021 | 2 | 2 |
| 2022 | 2 | 0 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 2 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods for identifying at least one parameter of a permanent magnet motor of an elevator, elevator drive units, and elevators4 Aug 2026US 12,698,182 B2Kone Corporation
- Energy storage system for an elevator car, and a method and an apparatus for monitoring the energy storage system30 Dec 2025US 12,509,327 B2Kone Corporation
- Power management in an elevator system27 May 2025US 12,312,211 B2Otis Elevator Company
- Car to car wireless power transfer20 Jun 2023US 11,682,929 B2Otis Elevator Company
- Elevator14 Feb 2023US 11,577,934 B2Kone Corporation
- Conveyance system with regenerative drive15 Feb 2024US 2024/0051787 A1Otis Elevator Company
- Methods for identifying at least one parameter of a permanent magnet motor of an elevator, elevator drive units, and elevators30 Sep 2021US 2021/0300722 A1Kone Corporation
- Passenger conveyor16 Sep 2021US 2021/0284488 A1Mitsubishi Electric Corporation
- Energy storage system for an elevator car, and a method and an apparatus for monitoring the energy storage system10 Sep 2020US 2020/0283264 A1Kone Corporation
- Car to car wireless power transfer18 Jun 2020US 2020/0195060 A1Otis Elevator Company
Most cited
By later US patents
- Transportation system with malfunction monitor47US 3,961,688 AArmor Elevator Company, Inc. · 1976
- Electric motor drive12US 8,207,700 B2Kone Corporation · 2012
- Elevator system including a power storage device with a supercapacitor unit and a battery unit11US 9,834,406 B2Otis Elevator Company · 2017
- Emergency stop apparatus for electric elevators10US 4,284,175 AMitsubishi Denki Kabushiki Kaisha · 1981
- Energy saver elevator9US 5,341,902 A1994