B66C 23/32
Self-hoisting cranes
B66C23/32 (Self-hoisting cranes) appears on 30 US grants and 34 published applications in this corpus.
Search patents in B66C- Granted patents
- 30
- Published applications
- 34
- Assignees
- 28
- Inventors
- 121
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 3 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 2 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 4 |
| 2022 | 1 | 2 |
| 2023 | 4 | 1 |
| 2024 | 1 | 5 |
| 2025 | 4 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Crane system and method for delivering crane from floor-to-floor of high-rise building under construction3 Feb 2026US 12,540,058 B2
- Self-hoisting crane and method of mounting and operating such crane23 Dec 2025US 12,503,343 B2Liftra IP Aps
- Crane assemblies and methods for erecting towers and wind turbines16 Dec 2025US 12,497,270 B2GE Vernova Infrastructure Technology LLC
- Multi-tower linkage type aerial hoisting platform9 Sep 2025US 12,410,039 B2Wuhan Construction Engineering Group Co., Ltd.
- Construction method for fully prefabricated multi-story concrete plant4 Mar 2025US 12,240,736 B2Gmc Grand-Bay Intelligent Manufacturing and Technology Co., Ltd.
- Base assembly for a tower mounted crane9 Apr 2026US 2026/0097934 A1Liftra IP Aps
- Crane System and Method for Delivering Crane from Floor-to-Floor of High-Rise Building under Construction3 Jul 2025US 2025/0214812 A1Broadway Patents LLC
- Multi-tower linkage type aerial hoisting platform22 May 2025US 2025/0162845 A1Wuhan Construction Engineering Group Co., Ltd.
- Tower climbing mechanism13 Feb 2025US 2025/0051145 A1
- Improvements in the construction and maintenance of wind turbines14 Nov 2024US 2024/0376863 A1Wind Spider AS
Most cited
By later US patents
- Pumping tower support system and method of use29US 7,748,193 B2Putzmeister America, Inc. · 2010
- Method and apparatus for handling building materials and implements24US 6,226,955 B12001
- Method of erecting a tower crane from two groups of modular tower sections differing in cross section23US 4,028,792 A1977
- Construction crane base16US 5,426,907 A1995
- Self-climbing hoist, deck and scaffold platform system15US 8,584,801 B22013