B66D 1/56
Adaptations of limit switches
B66D1/56 (Adaptations of limit switches) appears on 73 US grants and 59 published applications in this corpus.
Search patents in B66D- Granted patents
- 73
- Published applications
- 59
- Assignees
- 51
- Inventors
- 144
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 0 | 5 |
| 2015 | 2 | 4 |
| 2016 | 3 | 4 |
| 2017 | 3 | 7 |
| 2018 | 3 | 3 |
| 2019 | 9 | 8 |
| 2020 | 6 | 8 |
| 2021 | 6 | 2 |
| 2022 | 9 | 4 |
| 2023 | 5 | 4 |
| 2024 | 0 | 2 |
| 2025 | 7 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Estimation apparatus and crane9 Dec 2025US 12,492,104 B2Tadano Ltd.
- Winch drum monitoring device2 Dec 2025US 12,486,148 B2Sumitomo Heavy Industries Construction Cranes Co., Ltd.
- Apparatus and method for loading and unloading cargo of air mobility18 Nov 2025US 12,473,088 B2Hyundai Motor Company
- Homing load detecting device for rescue hoist and winch assemblies11 Nov 2025US 12,466,704 B2Hornet Acquisitionco, LLC
- Method to detect homing loads in rescue hoist and winch assemblies4 Nov 2025US 12,459,793 B2Hornet Acquisitionco, LLC
- Method to detect homing loads in rescue hoist and winch assemblies16 May 2024US 2024/0158210 A1Goodrich Corporation
- Homing load detecting device for rescue hoist and winch assemblies16 May 2024US 2024/0158211 A1Goodrich Corporation
- Estimation apparatus and crane21 Dec 2023US 2023/0406678 A1Tadano Ltd.
- Winch drum monitoring device5 Oct 2023US 2023/0312312 A1Sumitomo Heavy Industies Construstion Cranes Co., Ltd.
- Winch and fairlead assembly for a vehicle14 Sep 2023US 2023/0286785 A1
Most cited
By later US patents
- Remote winch clutch system28US 9,315,364 B2Warn Industries, Inc. · 2016
- Hoist apparatus26US 6,966,544 B2MHE Technologies, Inc. · 2005
- Chainless drive winch20US 5,803,437 A1998
- Boat lift apparatus19US 6,435,768 B12002
- Device for supplying and modifying a cylinder cubic capacity of a hydraulic motor15US 10,865,765 B2Manitou Italia S.R.L. · 2020