B66C 23/94
For limiting slewing movements
Official title: for limiting slewing movements
B66C23/94 (For limiting slewing movements) appears on 55 US grants and 54 published applications in this corpus.
Search patents in B66C- Granted patents
- 55
- Published applications
- 54
- Assignees
- 38
- Inventors
- 133
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 2 | 1 |
| 2014 | 1 | 2 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 2 | 5 |
| 2019 | 1 | 3 |
| 2020 | 7 | 8 |
| 2021 | 5 | 5 |
| 2022 | 1 | 9 |
| 2023 | 3 | 4 |
| 2024 | 9 | 1 |
| 2025 | 5 | 0 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Crane slewing control device and crane equipped with same7 Apr 2026US 12,595,160 B2Kobe Steel, Ltd.
- Parking brake device and work machine equipped with the same20 Jan 2026US 12,528,673 B2Kobelco Construction Machinery Co., Ltd.
- Work machine and method for controlling work machine28 Oct 2025US 12,454,444 B2Kobelco Construction Machinery Co., Ltd.
- Cargo crane, cargo-crane swing prevention method, and cargo conveyance method15 Jul 2025US 12,358,761 B2Jfe Steel Corporation
- Work machine collision safety controls and warnings27 May 2025US 12,312,220 B2Kobelco Construction Machinery Co., Ltd.
- Crane swing control device, crane equipped therewith, and crane swing method6 Aug 2026US 2026/0225861 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- A method of operating a work vehicle according to a maximum allowable swing speed23 Jul 2026US 2026/0210075 A1Caterpillar SARL
- A Method Of Operating A Work Vehicle According To A Maximum Allowable Swing Speed1 Jan 2026US 2026/0002336 A1Caterpillar SARL
- Crane slewing control device and crane equipped with same5 Sep 2024US 2024/0294365 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Parking brake device and work machine equipped with the same28 Dec 2023US 2023/0416057 A1Kobelco Construction Machinery Co., Ltd.
Most cited
By later US patents
- Slewing ring brake23US 6,199,442 B1BAUER Spezialtiefbau GmbH · 2001
- Crane swing safety control20US 4,064,997 A1977
- Crane having boom rest13US 5,402,898 AJLG Industries, Inc. · 1995
- Crane having a toolless removable battery and progressive function control13US 9,120,651 B12015
- Crane swing warning system11US 6,102,373 A2000