E02F 3/301
With more than two arms
Official title: {with more than two arms (boom included), e.g. two-part boom with additional dipper-arm}
E02F3/301 (With more than two arms) appears on 77 US grants and 79 published applications in this corpus.
Search patents in E02F- Granted patents
- 77
- Published applications
- 79
- Assignees
- 39
- Inventors
- 181
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 3 | 1 |
| 2009 | 0 | 6 |
| 2010 | 1 | 2 |
| 2011 | 6 | 3 |
| 2012 | 1 | 1 |
| 2013 | 1 | 6 |
| 2014 | 1 | 2 |
| 2015 | 4 | 4 |
| 2016 | 1 | 4 |
| 2017 | 6 | 9 |
| 2018 | 3 | 6 |
| 2019 | 5 | 5 |
| 2020 | 3 | 3 |
| 2021 | 5 | 7 |
| 2022 | 4 | 2 |
| 2023 | 1 | 6 |
| 2024 | 5 | 1 |
| 2025 | 1 | 1 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electric drive of mobile apparatus29 Sep 2026US 12,747,557 B2Hudson Delta B.V.
- System formed of several IMUs28 Apr 2026US 12,612,768 B2Contelec AG
- Position estimating system, position estimating unit, work machine, and extension unit17 Mar 2026US 12,577,759 B2Komatsu Ltd.
- Construction machine27 Jan 2026US 12,534,869 B2Hitachi Construction Machinery Co., Ltd.
- Controlling boom of work machine7 Oct 2025US 12,435,743 B2Ponsse Oyj
- Mechanism for movably mounting an upper structure of an off-road vehicle with respect to a chassis of the off-road vehicle20 Aug 2026US 2026/0242011 A1Deere & Company
- Material-receiving device for a suction excavator, and suction excavator having said material-receiving device19 Feb 2026US 2026/0049460 A1Rsp GmbH
- Mobile hydraulic working machine comprising emergency stop valves, and method for controlling a mobile hydraulic working machine20 Mar 2025US 2025/0091842 A1Oilfix GmbH
- Position estimating system, position estimating unit, work machine, and extension unit16 May 2024US 2024/0159023 A1Komatsu Ltd.
- Boom vehicle with vertically and laterally foldable boom assembly21 Dec 2023US 2023/0406677 A1Ragnartech Inc.
Most cited
By later US patents
- Region limiting excavation control system for construction machine74US 5,835,874 AHitachi Construction Machinery Co., Ltd. · 1998
- Coupling for heavy-duty machine37US 5,484,250 AGilmore Transportation Services, Inc. · 1996
- Control device for a power shovel29US 4,889,466 AKabushiki Kaisha Komatsu Seisakusho · 1989
- Coupling for heavy-duty machine27US 5,360,313 AGilmore Transportation Services, Inc. · 1994
- Arm mechanism25US 5,456,568 A1995