B66C 23/60
Derricks
B66C23/60 (Derricks) appears on 43 US grants and 27 published applications in this corpus.
Search patents in B66C- Granted patents
- 43
- Published applications
- 27
- Assignees
- 22
- Inventors
- 59
- Latest grant
- 15 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 4 | 0 |
| 2013 | 0 | 1 |
| 2014 | 2 | 2 |
| 2015 | 1 | 0 |
| 2016 | 2 | 3 |
| 2017 | 3 | 1 |
| 2018 | 0 | 2 |
| 2019 | 2 | 2 |
| 2020 | 4 | 1 |
| 2021 | 4 | 4 |
| 2022 | 1 | 0 |
| 2023 | 2 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 3 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Assembling and installing a wind turbine15 Apr 2025US 12,276,253 B2Itrec B V
- Crane extension and installation device to achieve bidirectional tension control and method for achieving bidirectional tension control crane16 Jul 2024US 12,037,224 B2Dalian University of Technology
- Crane with adjustable suspended ballast14 Feb 2023US 11,577,941 B2Liebherr-Werk Ehingen GmbH
- Method and apparatus for loading vessels using rotation3 Jan 2023US 11,541,968 B1
- Auxiliary cylinder apparatus, working machine including same, and use of auxiliary cylinder22 Nov 2022US 11,505,438 B2Kobelco Construction Machinery Co., Ltd.
- Mobile crane and method for reducing the load on the jib thereof25 Dec 2025US 2025/0388437 A1
- Plant for the construction of engineering works25 Sep 2025US 2025/0296816 A1The Deal, L.L.C.
- Crane with derrick ballast9 Jan 2025US 2025/0011142 A1Liebherr-Werk Nenzing GmbH
- Assembling and installing a wind turbine7 Dec 2023US 2023/0392583 A1Itrec B V
- Auxiliary cylinder apparatus, working machine including same, and use of auxiliary cylinder9 Dec 2021US 2021/0380377 A1Kobelco Construction Machinery Co., Ltd.
Most cited
By later US patents
- Mast for handling a coiled tubing injector51US 7,077,209 B2Varco/IP, Inc. · 2006
- Air-propelled vessel with articulating member51US 8,187,045 B22012
- Stabilized shipboard crane35US 4,932,541 ACalspan Corporation · 1990
- Portable crane formed of composite members29US 9,630,816 B1OZ Lifting Products, LLC · 2017
- Hoist apparatus with dual mast structure and compound power transmission system20US 4,128,229 AHydra-Rig, Inc. · 1978