B66D 3/22
With variable-speed gearings between driving motor and drum or barrel
Official title: with variable-speed gearings between driving motor and drum or barrel
B66D3/22 (With variable-speed gearings between driving motor and drum or barrel) appears on 59 US grants and 35 published applications in this corpus.
Search patents in B66D- Granted patents
- 59
- Published applications
- 35
- Assignees
- 34
- Inventors
- 101
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 3 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 2 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 5 |
| 2018 | 2 | 5 |
| 2019 | 4 | 0 |
| 2020 | 4 | 2 |
| 2021 | 4 | 3 |
| 2022 | 0 | 1 |
| 2023 | 2 | 2 |
| 2024 | 2 | 1 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Upper and lower limit detecting apparatus and method for electric chain block4 Nov 2025US 12,460,980 B2Kito Corporation
- Method for testing the operation of a next generation rescue hoist4 Nov 2025US 12,460,996 B2Goodrich Actuation Systems Limited
- Load lifting system14 May 2024US 11,982,126 B2ITC Services, Inc.
- Electrically propelled towing apparatus23 Apr 2024US 11,964,852 B1Zhejiang Nowvow Mechanical and Electrical Co., Ltd.
- Power transmission system30 May 2023US 11,661,194 B2Airbus Helicopters Deutschland GmbH
- Multiple brake hoist for overhead crane19 Feb 2026US 2026/0048967 A1Mazzella Lifting Texhnologies, Inc.
- Upper and lower limit detecting apparatus and method for electric chain block1 Feb 2024US 2024/0035907 A1Kito Corporation
- Method for testing the operation of a next generation rescue hoist7 Dec 2023US 2023/0393025 A1Goodrich Actuation Systems Limited
- Load lifting system13 Jul 2023US 2023/0220729 A1ITC Services, Inc.
- Winch for handling, in particular for lifting, a load8 Dec 2022US 2022/0388818 A1
Most cited
By later US patents
- Brake, in particular for a drive of a hoist62US 6,460,828 B1Demag Cranes & Components GmbH · 2002
- Personal lift device52US 7,240,621 B2Prism Medical Ltd. · 2007
- Portable winch46US 6,241,215 B1Mannesmann Aktiengesellschaft · 2001
- Hoist load brake36US 5,141,085 AHarnischfeger Corporation · 1992
- Method and apparatus for a high-performance hoist29US 6,241,462 B1Collaborative Motion Control, Inc. · 2001