B66C 1/04
Load-engaging elements or devices attached to lifting or lowering gear of cranes
Official title: by magnetic means
B66C1/04 (Load-engaging elements or devices attached to lifting or lowering gear of cranes) appears on 176 US grants and 157 published applications in this corpus.
Search patents in B66C- Granted patents
- 176
- Published applications
- 157
- Assignees
- 115
- Inventors
- 286
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 2 |
| 2002 | 2 | 1 |
| 2003 | 3 | 5 |
| 2004 | 3 | 3 |
| 2005 | 2 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 4 |
| 2008 | 2 | 7 |
| 2009 | 1 | 8 |
| 2010 | 6 | 9 |
| 2011 | 8 | 5 |
| 2012 | 4 | 13 |
| 2013 | 7 | 5 |
| 2014 | 9 | 2 |
| 2015 | 3 | 7 |
| 2016 | 3 | 2 |
| 2017 | 2 | 8 |
| 2018 | 4 | 7 |
| 2019 | 4 | 2 |
| 2020 | 5 | 8 |
| 2021 | 6 | 12 |
| 2022 | 4 | 5 |
| 2023 | 8 | 11 |
| 2024 | 14 | 13 |
| 2025 | 12 | 11 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lifting magnet and steel plate lifting apparatus, and steel plate conveying method14 Jul 2026US 12,679,701 B2Jfe Steel Corporation
- Piling machine14 Jul 2026US 12,680,254 B2JDC Corporation
- System and method for lifting prejoined deck components14 Jul 2026US 12,680,294 B2Klover SEPA, Inc.
- Magnetic coupling device7 Apr 2026US 12,597,544 B2Magswitch Automation Company
- Variable field magnetic couplers and methods for engaging a ferromagnetic workpiece17 Mar 2026US 12,580,142 B2Magswitch Automation Company
- Variable field magnetic couplers and methods for engaging a ferromagnetic workpiece27 Aug 2026US 2026/0253824 A1Magswitch Automation Company
- Magnetic coupling device25 Jun 2026US 2026/0175337 A1Magswitch Automation Company
- Magnetic coupling device19 Mar 2026US 2026/0081510 A1Magswitch Automation Company
- Magnet gripper5 Mar 2026US 2026/0061632 A1SMC Corporation
- Package Loading Mechanism5 Mar 2026US 2026/0062125 A1Wing Aviation LLC
Most cited
By later US patents
- Electromagnetic attachment mechanism89US 5,145,227 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1992
- Pneumatically actuated magnetic workpiece holder72US 6,538,544 B1Industrial Magnetics, Inc. · 2003
- Servocontrolled magnetic gripping device59US 6,663,154 B2Famatec S.R.L. · 2003
- Pickup method and apparatus56US 4,121,865 A1978
- Magnetic lifting apparatus52US 6,076,873 A2000