B66C 23/22
Window cranes, i.e. adapted to be supported in window openings
B66C23/22 (Window cranes, i.e. adapted to be supported in window openings) appears on 8 US grants and 8 published applications in this corpus.
Search patents in B66C- Granted patents
- 8
- Published applications
- 8
- Assignees
- 4
- Inventors
- 20
- Latest grant
- 9 Jun 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Flue mounted hoist9 Jun 2020US 10,676,323 B2Clevatech Ltd
- Telescopic boom extension device27 Jun 2017US 9,688,519 B2Tadano Ltd.
- Crane23 Mar 2010US 7,681,747 B2
- Portable lifting device12 Nov 2002US 6,478,172 B2
- Cable lifting device for handling heavy loads within a tight shielded enclosure9 Jan 1996US 5,482,169 ACommissariat A L' Energie Atomique
Most cited
By later US patents
- Extensible and collapsible portable derrick35US 3,978,989 A1976
- Confined space lowering and retrieving apparatus12US 5,431,248 A1995
- Portable lifting device9US 6,478,172 B22002
- Crane6US 7,681,747 B22010
- Cable lifting device for handling heavy loads within a tight shielded enclosure3US 5,482,169 ACommissariat A L' Energie Atomique · 1996