B66F 3/20
Actuated through multiple or change-speed gearings
Official title: actuated through multiple or change-speed gearings
B66F3/20 (Actuated through multiple or change-speed gearings) appears on 13 US grants and 14 published applications in this corpus.
Search patents in B66F- Granted patents
- 13
- Published applications
- 14
- Assignees
- 11
- Inventors
- 36
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 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 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 2 |
| 2022 | 1 | 1 |
| 2023 | 3 | 2 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for switching gears in multiple-speed landing gear12 May 2026US 12,623,634 B2Ez Winder, LLC
- Maneuverable ergonomic trailer stands31 Mar 2026US 12,589,623 B2Rite-Hite Holding Corporation
- Lifting column transmission assembly and lifting column25 Mar 2025US 12,258,247 B2Zhejiang Jiecang Linear Motion Technology Co., Ltd.
- Maneuverable ergonomic trailer stands25 Jun 2024US 12,017,491 B2Rite-Hite Holding Corporation
- Jacking machine and control method thereof3 Oct 2023US 11,772,947 B1
- Lifting column transmission assembly and lifting column24 Sep 2026US 2026/0285653 A1Zhejiang Jiecang Linear Motion Technology Co., Ltd.
- Kit and Method for Converting a Manual Trailer Tongue Jack Assembly to Power Drill Drive9 Apr 2026US 2026/0097617 A1Dutton-Lainson Company
- Trailer Tongue Jack Assembly with Manual and Torque Limited Power Drill Driver5 Feb 2026US 2026/0035220 A1Dutton-Lainson Company
- Systems and methods for switching gears in multiple-speed landing gear7 Nov 2024US 2024/0367622 A1Ez Winder, LLC
- Maneuverable ergonomic trailer stands19 Sep 2024US 2024/0308286 A1Rite-Hite Holding Corporation
Most cited
By later US patents
- Electrically operated screw-type jack28US 5,118,082 AB & L Corp. · 1992
- Seat mechanism for mounting in a shower or bathtub19US 6,158,809 A2000
- Wheelchair for handicapped10US 6,247,718 B12001
- Maneuverable ergonomic trailer stands6US 11,602,964 B22023
- Leveling jack with direct actuation5US 10,167,178 B2Lippert Components, Inc. · 2019