B66B 11/08
With hoisting rope or cable operated by frictional engagement with a winding
Official title: with hoisting rope or cable operated by frictional engagement with a winding drum or sheave {(B66B11/008 takes precedence)}
B66B11/08 (With hoisting rope or cable operated by frictional engagement with a winding) appears on 119 US grants and 86 published applications in this corpus.
Search patents in B66B- Granted patents
- 119
- Published applications
- 86
- Assignees
- 32
- Inventors
- 219
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 8 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 1 |
| 2002 | 9 | 5 |
| 2003 | 1 | 0 |
| 2004 | 2 | 3 |
| 2005 | 1 | 5 |
| 2006 | 1 | 6 |
| 2007 | 0 | 4 |
| 2008 | 1 | 2 |
| 2009 | 2 | 3 |
| 2010 | 4 | 4 |
| 2011 | 1 | 1 |
| 2012 | 4 | 1 |
| 2013 | 2 | 4 |
| 2014 | 0 | 4 |
| 2015 | 3 | 2 |
| 2016 | 8 | 7 |
| 2017 | 5 | 9 |
| 2018 | 2 | 5 |
| 2019 | 7 | 1 |
| 2020 | 6 | 8 |
| 2021 | 1 | 3 |
| 2022 | 5 | 1 |
| 2023 | 3 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Energy-saving elevator19 Aug 2025US 12,391,516 B2
- Vibration suppression device for rope-like body of elevator16 Apr 2024US 11,958,720 B2Mitsubishi Electric Corporation
- Elevator system roping arrangement28 Feb 2023US 11,591,188 B2Otis Elevator Company
- Moving a heavy overload with an elevator17 Jan 2023US 11,554,936 B2Inventio AG
- Rope wheel, traction wheel, elevator drive machinery and elevator17 Jan 2023US 11,554,937 B2Kone Corporation
- Elevator lifted by dual-motor drive apparatus30 Jul 2026US 2026/0217496 A1Shanghai Mitsubishi Elevator Co., Ltd.
- Drive train assembly for a belt drive unit of a lift system and correspondingly designed shaft and use thereof7 May 2026US 2026/0125243 A1
- Rack for machine roomless elevator system, elevator lifting drive and elevator system19 Feb 2026US 2026/0048965 A1Otis Elevator Company
- Arrangement for replacing elevator suspension ropes and a method13 Feb 2025US 2025/0051139 A1Kone Corporation
- Method for online replacement and method for installation of elevator sheave liner, and elevator sheave liner9 Jan 2025US 2025/0011132 A1Otis Elevator Company
Most cited
By later US patents
- Elevator rope arrangement52US 6,364,063 B1Kone Corporation · 2002
- Traction sheave elevator49US 5,429,211 AKone Corporation · 1995
- Traction elevators with adjustable traction sheave loading, with or without counterweights42US 5,788,018 AOtis Elevator Company · 1998
- Pulley-driven elevator42US 6,193,017 B1Blain Hydraulics GmbH · 2001
- Synthetic non-metallic rope for an elevator34US 5,881,843 AOtis Elevator Company · 1999