B66D 1/225
Variable ratio or reversing gearing
Official title: {variable ratio or reversing gearing (fixed ratio gearing B66D1/22)}
B66D1/225 (Variable ratio or reversing gearing) appears on 35 US grants and 39 published applications in this corpus.
Search patents in B66D- Granted patents
- 35
- Published applications
- 39
- Assignees
- 25
- Inventors
- 62
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 2 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 2 | 7 |
| 2019 | 7 | 7 |
| 2020 | 6 | 4 |
| 2021 | 3 | 2 |
| 2022 | 2 | 1 |
| 2023 | 1 | 1 |
| 2024 | 2 | 4 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Winch with advanced electrical and mechanical smart controls28 Apr 2026US 12,612,290 B2Warn Industries, Inc.
- Method for controlling an actuation assembly9 Sep 2025US 12,411,473 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Drive unit for a construction and/or material handling machine18 Jun 2024US 12,013,023 B2Liebherr-Components Biberach GmbH
- Winch fitted with planetary gear transmission having function of automatic gear shifting13 Feb 2024US 11,897,737 B2
- Low force epicyclic gear apparatus hold and release mechanism22 Aug 2023US 11,732,788 B2Wedgerock LLC
- Winch with automatic speed-changing mechanism20 Aug 2026US 2026/0242189 A1Zhejiang Normal University
- Automatic resetting mechanism for winch engaging-disengaging switch5 Feb 2026US 2026/0035218 A1Ningbo Lianda Winch Co., Ltd.
- Compact Winch System20 Nov 2025US 2025/0353709 A1Westin Automotive Products, Inc.
- Winch with advanced electrical and mechanical smart controls18 Apr 2024US 2024/0124277 A1Warn Industries, Inc.
- Winch with advanced electrical and mechanical smart controls18 Apr 2024US 2024/0124278 A1Warn Industries, Inc.
Most cited
By later US patents
- Multi-speed winch39US 5,842,684 AMileMarker, Inc. · 1998
- Winch8US 10,322,916 B2Ningbo Lianda Winch Co., Ltd. · 2019
- Drive for lifting equipment7US 5,779,588 AZF Friedrichshafen AG · 1998
- Swivel winch rotated via an actuator in response to pressure sensor data5US 10,173,870 B1Hall Labs LLC · 2019
- Winch for vehicles5US 10,377,608 B2Ningbo Lianda Winch Co., Ltd. · 2019