E02F 3/84
Drives or control devices therefor
Official title: Drives or control devices therefor {, e.g. hydraulic drive systems}
E02F3/84 (Drives or control devices therefor) appears on 916 US grants and 875 published applications in this corpus.
Search patents in E02F- Granted patents
- 916
- Published applications
- 875
- Assignees
- 166
- Inventors
- 1,418
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 12 | 0 |
| 1978 | 8 | 0 |
| 1979 | 10 | 0 |
| 1980 | 8 | 0 |
| 1981 | 9 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 6 | 0 |
| 1990 | 9 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 10 | 0 |
| 1998 | 14 | 0 |
| 1999 | 26 | 0 |
| 2000 | 22 | 0 |
| 2001 | 18 | 3 |
| 2002 | 9 | 3 |
| 2003 | 3 | 7 |
| 2004 | 6 | 3 |
| 2005 | 4 | 7 |
| 2006 | 10 | 10 |
| 2007 | 6 | 19 |
| 2008 | 2 | 19 |
| 2009 | 9 | 9 |
| 2010 | 12 | 14 |
| 2011 | 12 | 12 |
| 2012 | 13 | 18 |
| 2013 | 23 | 31 |
| 2014 | 26 | 40 |
| 2015 | 30 | 21 |
| 2016 | 34 | 52 |
| 2017 | 38 | 44 |
| 2018 | 36 | 48 |
| 2019 | 40 | 62 |
| 2020 | 48 | 98 |
| 2021 | 60 | 93 |
| 2022 | 72 | 66 |
| 2023 | 46 | 75 |
| 2024 | 65 | 48 |
| 2025 | 59 | 39 |
| 2026 | 41 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Differential dozer blade lift and angle mechanism6 Oct 2026US 12,753,572 B2
- Adaptive eco mode6 Oct 2026US 12,753,573 B2Deere & Company
- Work machine and method for controlling work machine6 Oct 2026US 12,753,574 B2Komatsu Ltd.
- Work machine, and method and system for controlling work machine22 Sep 2026US 12,742,304 B2Komatsu Ltd.
- Work tool float management15 Sep 2026US 12,735,858 B2Caterpillar Inc.
- Multidirectional grading control for work machines8 Oct 2026US 2026/0308871 A1Deere & Company
- Autonomous Control Of Powered Earth-Moving Vehicles To Implement Vehicle Stoppage And Shutdown24 Sep 2026US 2026/0286647 A1AIM Intelligent Machines, Inc.
- Generation of a smooth path profile for an implement of a machine based on a set of terrain points10 Sep 2026US 2026/0266028 A1Caterpillar Inc.
- Variable blade float3 Sep 2026US 2026/0258636 A1Deere & Company
- Automatically enabling and disabling an autonomous control scheme for an implement of a machine3 Sep 2026US 2026/0258638 A1Caterpillar Inc.
Most cited
By later US patents
- Method and apparatus for establishing a perimeter defining an area to be traversed by a mobile machine227US 6,112,143 ACaterpillar Inc. · 2000
- Method and apparatus for real-time monitoring and coordination of multiple geography altering machines on a work site223US 5,646,844 ACaterpillar Inc. · 1997
- Position sensing system for surveying and grading189US 4,820,041 AAGTEK Development Company, Inc. · 1989
- Method and apparatus for accurately positioning a tool on a mobile machine using on-board laser and positioning system172US 6,108,076 ATrimble Navigation Limited · 2000
- Grading system149US 4,807,131 AClegg Engineering, Inc. · 1989