B66D 3/18
Power-operated hoists
B66D3/18 (Power-operated hoists) appears on 483 US grants and 420 published applications in this corpus.
Search patents in B66D- Granted patents
- 483
- Published applications
- 420
- Assignees
- 258
- Inventors
- 933
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 9 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 10 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 10 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 4 |
| 2002 | 11 | 18 |
| 2003 | 15 | 10 |
| 2004 | 8 | 8 |
| 2005 | 9 | 13 |
| 2006 | 13 | 7 |
| 2007 | 13 | 13 |
| 2008 | 12 | 14 |
| 2009 | 9 | 14 |
| 2010 | 14 | 17 |
| 2011 | 8 | 11 |
| 2012 | 9 | 17 |
| 2013 | 10 | 22 |
| 2014 | 14 | 16 |
| 2015 | 15 | 15 |
| 2016 | 11 | 13 |
| 2017 | 14 | 13 |
| 2018 | 17 | 23 |
| 2019 | 16 | 15 |
| 2020 | 23 | 27 |
| 2021 | 25 | 28 |
| 2022 | 11 | 26 |
| 2023 | 21 | 20 |
| 2024 | 23 | 23 |
| 2025 | 25 | 20 |
| 2026 | 14 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Article elevating device8 Sep 2026US 12,733,438 B2Daifuku Co., Ltd.
- Method of operating a finishing system1 Sep 2026US 12,723,322 B2SST Systems, Inc.
- Carrying apparatus with loading element7 Jul 2026US 12,672,710 B1
- Compact aircraft rescue hoist with high wrap angle24 Mar 2026US 12,583,592 B2Hornet Acquisitionco, LLC
- Rope grab device for a portable power driven system10 Mar 2026US 12,570,505 B2Skylotec GmbH
- Air hoist, particularly adapted for use in a shipyard8 Oct 2026US 2026/0307956 A1
- Air filter lift assembly20 Aug 2026US 2026/0242190 A1
- Hoist system6 Aug 2026US 2026/0225863 A1
- Pipe replacement drum device and method6 Aug 2026US 2026/0227004 A1TT Technologies, Inc.
- Cordless winch30 Jul 2026US 2026/0217501 A1Milwaukee Electric Tool Corporation
Most cited
By later US patents
- Control and guiding device for manually operating a handling unit, and modular construction kit for making such devices of different configuration79US 6,592,321 B2Demag Cranes & Components GmbH · 2003
- Transfer hoist for disabled persons77US 4,372,452 AIndependent Transfer Equipment Co. · 1983
- Pneumatic human power amplifer module74US 5,915,673 A1999
- Vacuum-assisted carton or box lifter73US 9,061,868 B1Wepco., Inc. · 2015
- Human power amplifier for vertical maneuvers70US 5,865,426 A1999