B66C 1/22
Rigid members
Official title: Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
B66C1/22 (Rigid members) appears on 864 US grants and 636 published applications in this corpus.
Search patents in B66C- Granted patents
- 864
- Published applications
- 636
- Assignees
- 511
- Inventors
- 1,377
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 17 | 0 |
| 1978 | 18 | 0 |
| 1979 | 14 | 0 |
| 1980 | 11 | 0 |
| 1981 | 21 | 0 |
| 1982 | 9 | 0 |
| 1983 | 9 | 0 |
| 1984 | 13 | 0 |
| 1985 | 13 | 0 |
| 1986 | 9 | 0 |
| 1987 | 11 | 0 |
| 1988 | 13 | 0 |
| 1989 | 7 | 0 |
| 1990 | 13 | 0 |
| 1991 | 8 | 0 |
| 1992 | 11 | 0 |
| 1993 | 14 | 0 |
| 1994 | 12 | 0 |
| 1995 | 14 | 0 |
| 1996 | 10 | 0 |
| 1997 | 15 | 0 |
| 1998 | 13 | 0 |
| 1999 | 16 | 0 |
| 2000 | 18 | 0 |
| 2001 | 6 | 3 |
| 2002 | 13 | 10 |
| 2003 | 11 | 11 |
| 2004 | 5 | 18 |
| 2005 | 6 | 16 |
| 2006 | 8 | 16 |
| 2007 | 12 | 10 |
| 2008 | 11 | 13 |
| 2009 | 8 | 16 |
| 2010 | 8 | 19 |
| 2011 | 14 | 23 |
| 2012 | 13 | 13 |
| 2013 | 24 | 24 |
| 2014 | 18 | 19 |
| 2015 | 21 | 24 |
| 2016 | 30 | 25 |
| 2017 | 23 | 36 |
| 2018 | 29 | 23 |
| 2019 | 34 | 40 |
| 2020 | 31 | 44 |
| 2021 | 36 | 49 |
| 2022 | 37 | 38 |
| 2023 | 39 | 44 |
| 2024 | 45 | 49 |
| 2025 | 35 | 33 |
| 2026 | 18 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for the transport and holding of building materials6 Oct 2026US 12,753,050 B2Nilec Solutions, LLC
- Crane with saw attachment mechanism15 Sep 2026US 12,735,301 B2Fascan International, Inc.
- Mobile crane systems and methods11 Aug 2026US 12,703,405 B2
- Crane construction gripping device and communication method thereof28 Jul 2026US 12,692,131 B2
- System and method for lifting prejoined deck components14 Jul 2026US 12,680,294 B2Klover SEPA, Inc.
- Remotely operable lifting equipment8 Oct 2026US 2026/0307947 A1
- Clamping mechanism and limiting mechanism for lifting device8 Oct 2026US 2026/0307948 A1Great Circle Machinery Corp
- Overhead transport vehicle1 Oct 2026US 2026/0296839 A1Murata Machinery, Ltd.
- Universal Skid Steer and Compact Equipment Motor Puller24 Sep 2026US 2026/0285648 A1
- Overhead transport vehicle24 Sep 2026US 2026/0285649 A1Murata Machinery, Ltd.
Most cited
By later US patents
- Snap hook with pivotal gate115US 5,913,479 A1999
- Collapsible receptacle for flowable materials89US 4,194,652 ASuper Sack Manufacturing Corporation · 1980
- Swivel coupling device84US 5,248,176 A1993
- Industrial manipulator for placing articles in close proximity to adjacent articles82US 4,273,506 AImperial Chemical Industries PLC · 1981
- Lifting hook with a safety latch and capable of being provided with automatic load release function75US 5,292,165 A1994