E02F 3/439
Automatic repositioning of the implement
Official title: {Automatic repositioning of the implement, e.g. automatic dumping, auto-return (E02F3/438 takes precedence)}
E02F3/439 (Automatic repositioning of the implement) appears on 170 US grants and 236 published applications in this corpus.
Search patents in E02F- Granted patents
- 170
- Published applications
- 236
- Assignees
- 48
- Inventors
- 323
- Latest grant
- 6 Oct 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 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 3 |
| 2009 | 0 | 1 |
| 2010 | 3 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 2 |
| 2013 | 1 | 2 |
| 2014 | 3 | 4 |
| 2015 | 3 | 3 |
| 2016 | 3 | 7 |
| 2017 | 5 | 9 |
| 2018 | 7 | 15 |
| 2019 | 7 | 9 |
| 2020 | 7 | 28 |
| 2021 | 14 | 31 |
| 2022 | 16 | 29 |
| 2023 | 17 | 18 |
| 2024 | 24 | 32 |
| 2025 | 26 | 17 |
| 2026 | 23 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Computer controlled backhoe83US 4,288,196 A1981
- Automatic excavation control system and method70US 5,446,980 ACaterpillar Inc. · 1995
- Method and apparatus for calibrating a tool positioning mechanism on a mobile machine70US 6,253,160 B1Trimble Navigation Limited · 2001
- Coordinated joint motion control system60US 8,145,355 B2Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada, Reno · 2012
- Semi-automatic hydraulic excavator40US 4,377,043 AKabushiki Kaisha Komatsu Seisakusho · 1983