B66C 13/22
For electric drives
Official title: for electric drives (transmitting control pulses B66C13/40; systems or devices of general application H02P)
B66C13/22 (For electric drives) appears on 293 US grants and 314 published applications in this corpus.
Search patents in B66C- Granted patents
- 293
- Published applications
- 314
- Assignees
- 161
- Inventors
- 588
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 3 |
| 2003 | 4 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 4 |
| 2006 | 3 | 2 |
| 2007 | 3 | 5 |
| 2008 | 2 | 5 |
| 2009 | 7 | 2 |
| 2010 | 0 | 4 |
| 2011 | 0 | 7 |
| 2012 | 3 | 7 |
| 2013 | 2 | 6 |
| 2014 | 8 | 5 |
| 2015 | 6 | 8 |
| 2016 | 7 | 14 |
| 2017 | 10 | 13 |
| 2018 | 9 | 18 |
| 2019 | 19 | 25 |
| 2020 | 21 | 34 |
| 2021 | 23 | 39 |
| 2022 | 21 | 36 |
| 2023 | 33 | 16 |
| 2024 | 33 | 22 |
| 2025 | 26 | 23 |
| 2026 | 14 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Article elevating device8 Sep 2026US 12,733,438 B2Daifuku Co., Ltd.
- Rotation control device of work machine and work machine equipped with same18 Aug 2026US 12,709,521 B2Kobelco Construction Machinery Co., Ltd.
- Damper systems for suspended loads28 Jul 2026US 12,692,133 B2Innovative Minds, LLC
- Grid-powered material handling and/or construction machine23 Jun 2026US 12,662,357 B2Liebherr-Werk Biberach GmbH
- Monorail hoist transportation robot driven by permanent magnet and variable frequency of explosion-proof lithium battery9 Jun 2026US 12,649,644 B2China University of Mining and Technology
- Operating modes of an electric crane8 Oct 2026US 2026/0307509 A1
- Lift device and method of controlling24 Sep 2026US 2026/0285663 A1Terex South Dakota, Inc.
- Gasoline-electric hybrid operating system of truck crane, and crane3 Sep 2026US 2026/0257897 A1Xuzhou Heavy Machinery Co., Ltd.
- Hybrid-power control method and system, and crane30 Jul 2026US 2026/0217499 A1Xuzhou Heavy Machinery Co., Ltd.
- System for hook speed control of pipelayers16 Jul 2026US 2026/0200707 A1Caterpillar Inc.
Most cited
By later US patents
- Elevating system62US 5,361,565 A1994
- Arrangement for a vertical and horizontal goods hoist52US 5,850,928 A1998
- Lift control systems for lifting devices and lifting devices comprising the same48US 8,474,794 B2Liko Research & Development AB · 2013
- Crane claw tilt sensing and recovery36US 5,358,219 A1994
- Multiple hoist synchronization apparatus and method35US 6,598,859 B1MagneTek, Inc. · 2003