B66C 23/821
Bracing equipment for booms
Official title: {Bracing equipment for booms}
B66C23/821 (Bracing equipment for booms) appears on 83 US grants and 86 published applications in this corpus.
Search patents in B66C- Granted patents
- 83
- Published applications
- 86
- Assignees
- 37
- Inventors
- 144
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 7 |
| 2005 | 0 | 1 |
| 2006 | 2 | 2 |
| 2007 | 4 | 0 |
| 2008 | 0 | 1 |
| 2009 | 3 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 4 | 4 |
| 2015 | 1 | 1 |
| 2016 | 1 | 3 |
| 2017 | 0 | 3 |
| 2018 | 3 | 5 |
| 2019 | 6 | 6 |
| 2020 | 10 | 8 |
| 2021 | 10 | 12 |
| 2022 | 3 | 9 |
| 2023 | 9 | 5 |
| 2024 | 5 | 5 |
| 2025 | 5 | 2 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lifting gear, and method for adjusting the boom of such a lifting gear21 Jul 2026US 12,686,599 B2Liebherr-Werk Biberach GmbH
- Increased stability lifting gear30 Jun 2026US 12,668,463 B2Liebherr-Werk Biberach GmbH
- Crane and control method therefor17 Feb 2026US 12,552,645 B2Zhejiang Sany Equipment Co., Ltd.
- Mobile crane having a guyed telescopic boom10 Feb 2026US 12,545,558 B2Liebherr-Werk Ehingen GmbH
- Upper spreader guide device13 Jan 2026US 12,522,480 B2Kobelco Construction Machinery Co., Ltd.
- Crane attachment6 Aug 2026US 2026/0225864 A1Kobelco Construction Machinery Co., Ltd.
- Telescopic boom and crane6 Aug 2026US 2026/0225865 A1Liebherr-Werk Ehingen GmbH
- Crane4 Jun 2026US 2026/0152373 A1Kobelco Construction Machinery Co., Ltd.
- Foldable superlift device, crane, and tensioning control system and method7 May 2026US 2026/0125248 A1Xuzhou Heavy Machinery Co., Ltd.
- Strut structure for a crane comprising a toggle leg at the foot of the strut arm9 Apr 2026US 2026/0097935 A1
Most cited
By later US patents
- Reinforcement mechanism for multi-stage telescopic boom35US 4,982,853 AKabushiki Kaisha Hikoma Seisakusho · 1991
- Telescopic boom of a crane25US 7,044,315 B2Liebherr-Werk Ehingen GmbH · 2006
- Telescopic crane18US 6,550,624 B1Mannesmann Aktiengesellschaft · 2003
- Mobile crane11US 8,777,027 B2Liebherr-Werk Ehingen GmbH · 2014
- Automatically deployable load-line receiving mast structure for limiting deflection of proportionally extendable boom section crane10US 5,803,279 APioneer Engineering · 1998