E02F 3/303
With the dipper-arm or boom rotatable about its longitudinal axis
Official title: {with the dipper-arm or boom rotatable about its longitudinal axis}
E02F3/303 (With the dipper-arm or boom rotatable about its longitudinal axis) appears on 25 US grants and 9 published applications in this corpus.
Search patents in E02F- Granted patents
- 25
- Published applications
- 9
- Assignees
- 16
- Inventors
- 37
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 2 |
| 2020 | 1 | 1 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dipper handle assembly14 Oct 2025US 12,442,153 B2Caterpillar Global Mining LLC
- Shovel having boom raising assisting function using attachment information4 Apr 2023US 11,619,030 B2Sumitomo(S.H.I.) Construction Machinery Co., Ltd.
- Excavator having rotatable arm12 Oct 2021US 11,142,881 B2
- Boom system for breaking and manouevring oversize material7 Sep 2021US 11,111,648 B2McQuaid Engineering Ltd
- Working device5 May 2020US 10,640,948 B2Takeuchi Mfg. Co., Ltd.
- Construction machine, drive device for construction machine, and drive unit for construction machine12 Mar 2026US 2026/0071405 A1Nabtesco Corporation
- Excavating machine27 Feb 2025US 2025/0067017 A1Kyungwontech Co., Ltd.
- Dipper handle assembly22 Jun 2023US 2023/0193584 A1Caterpillar Global Mining LLC
- Working device12 Mar 2020US 2020/0080276 A1Takeuchi Mfg. Co., Ltd.
- Shovel26 Dec 2019US 2019/0390444 A1Sumitomo(S.H.I.) Construction Machinery Co., Ltd.
Most cited
By later US patents
- Method for controlling a hydraulic excavator32US 5,363,304 AShin Caterpillar Mitsubishi Ltd. · 1994
- Method and apparatus for cutting a trench through rock-like material30US 4,542,940 AH. B. Zachry Company · 1985
- Control device for a power shovel29US 4,889,466 AKabushiki Kaisha Komatsu Seisakusho · 1989
- Excavator arm24US 5,054,990 AKarl Schaeff GmbH & Co. · 1991
- Backhoe excavating apparatus19US 4,274,797 A1981