B66B 11/0438
With a gearless driving
Official title: {with a gearless driving, e.g. integrated sheave, drum or winch in the stator or rotor of the cage motor}
B66B11/0438 (With a gearless driving) appears on 71 US grants and 56 published applications in this corpus.
Search patents in B66B- Granted patents
- 71
- Published applications
- 56
- Assignees
- 25
- Inventors
- 126
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 1 |
| 2002 | 5 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 5 |
| 2007 | 2 | 2 |
| 2008 | 4 | 0 |
| 2009 | 1 | 5 |
| 2010 | 1 | 4 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 2 |
| 2014 | 4 | 5 |
| 2015 | 3 | 2 |
| 2016 | 2 | 3 |
| 2017 | 0 | 5 |
| 2018 | 5 | 3 |
| 2019 | 2 | 5 |
| 2020 | 3 | 0 |
| 2021 | 1 | 2 |
| 2022 | 2 | 1 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Elevator drive and elevator system6 Jan 2026US 12,515,914 B2Inventio AG
- Energy-saving elevator19 Aug 2025US 12,391,516 B2
- Retrofitted hoist machine7 Nov 2023US 11,807,493 B1Otis Elevator Company
- Traction machine assembly and elevator18 Jul 2023US 11,702,321 B2Otis Elevator Company
- Rope-climbing self propelled elevator system6 Sep 2022US 11,434,107 B2Otis Elevator Company
- Modular machine with brake coil integrated in motor stand27 Aug 2026US 2026/0250103 A1Otis Elevator Company
- Traction machine and traction machine system applying the same23 Jul 2026US 2026/0213605 A1Zhongshan Broad-Ocean Motor Co., Ltd.
- Gearless elevator drive system and elevator system comprising a gearless elevator drive system30 Apr 2026US 2026/0116706 A1Otis Elevator Company
- Rack for machine roomless elevator system, elevator lifting drive and elevator system19 Feb 2026US 2026/0048965 A1Otis Elevator Company
- Elevator drive and elevator system19 Dec 2024US 2024/0417214 A1Inventio AG
Most cited
By later US patents
- Traction sheave elevator49US 5,429,211 AKone Corporation · 1995
- Elevator hoist apparatus with an outer rotor motor42US 4,960,186 AMitsubishi Denki Kabushiki Kaisha · 1990
- Elevator hoist apparatus39US 5,018,603 AMitsubishi Denki Kabushiki Kaisha · 1991
- Structure for attaching elevator machinery in a building30US 5,490,578 AKone Corporation · 1996
- Elevator machinery mounted on a guide rail and its installation27US 5,899,301 AKone Corporation · 1999