B66D 3/043
Block and tackle system with variable number of cable parts
Official title: {Block and tackle system with variable number of cable parts}
B66D3/043 (Block and tackle system with variable number of cable parts) appears on 31 US grants and 26 published applications in this corpus.
Search patents in B66D- Granted patents
- 31
- Published applications
- 26
- Assignees
- 24
- Inventors
- 54
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 4 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 2 |
| 2018 | 0 | 1 |
| 2019 | 2 | 2 |
| 2020 | 1 | 2 |
| 2021 | 2 | 3 |
| 2022 | 1 | 4 |
| 2023 | 3 | 2 |
| 2024 | 4 | 2 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Double-reeved lifting device with an improved pawl-locking mechanism29 Jul 2025US 12,371,308 B2Manitowoc Crane Group France SAS
- Crane device, method for determining number of falls, and computer readable non-transitory recording medium31 Dec 2024US 12,180,043 B2Tadano Ltd.
- Method for determining the rope reeving of a pulley block4 Jun 2024US 11,999,601 B2Liebherr-Werk Ehingen GmbH
- Hoisting system and method13 Feb 2024US 11,897,738 B2Schlumberger Technology Corporation
- Double-reeved lifting device with a rotary locking mechanism9 Jan 2024US 11,866,309 B2Manitowoc Crane Group France SAS
- Lifting gear15 May 2025US 2025/0153983 A1Liebherr-Werk Biberach GmbH
- Low Headroom Hook Block for Wire Rope Hoist13 Feb 2025US 2025/0051146 A1Columbus McKinnon Corporation
- Lifting machinery with automated reeving configuration change14 Mar 2024US 2024/0083722 A1Manitowoc Crane Group France SAS
- Automatic method for determining a physical end-of-travel position of a reeve-block of a tower crane18 Jan 2024US 2024/0017969 A1Manitowoc Crane Group France SAS
- Double-reeved lifting device with an improved pawl-locking mechanism9 Nov 2023US 2023/0356988 A1Manitowoc Crane Group France SAS
Most cited
By later US patents
- Hoist system24US 6,926,259 B1Itrec B V · 2005
- Splittable block on a derrick20US 6,926,103 B1Itrec B V · 2005
- Compensation and hoisting apparatus20US 6,926,260 B1Itrec B V · 2005
- Split block for extended travel14US 4,721,286 AAMCA International Corporation · 1988
- Dual cluster crown block13US 4,796,863 AParco Mast and Substructures, Inc. · 1989