E02F 3/651
Hydraulic or pneumatic drives
Official title: {Hydraulic or pneumatic drives; Electric or electro-mechanical control devices (E02F3/652, E02F3/653 take precedence)}
E02F3/651 (Hydraulic or pneumatic drives) appears on 61 US grants and 53 published applications in this corpus.
Search patents in E02F- Granted patents
- 61
- Published applications
- 53
- Assignees
- 19
- Inventors
- 155
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 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 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 2 | 5 |
| 2011 | 3 | 0 |
| 2012 | 2 | 5 |
| 2013 | 1 | 2 |
| 2014 | 1 | 1 |
| 2015 | 2 | 3 |
| 2016 | 1 | 6 |
| 2017 | 3 | 2 |
| 2018 | 3 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 8 |
| 2021 | 3 | 3 |
| 2022 | 2 | 4 |
| 2023 | 6 | 2 |
| 2024 | 5 | 3 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Earth scraper23 Jun 2026US 12,662,794 B2
- Work cycle identification for scrapers and corresponding feature automation14 Jan 2025US 12,195,942 B2Deere & Company
- Utility truck body with integrated multifunctional hydraulic arm and lift assembly29 Oct 2024US 12,129,625 B1
- Excavator9 Jul 2024US 12,031,302 B2Sumitomo Heavy Industries, Ltd.
- Scraper control method4 Jun 2024US 12,000,109 B2Deere & Company
- Shovel control device and shovel30 May 2024US 2024/0175243 A1Sumitomo Heavy Industries, Ltd.
- Work Cycle Identification for Scrapers and Corresponding Feature Automation11 Apr 2024US 2024/0117593 A1Deere & Company
- Earth scraper21 Mar 2024US 2024/0093462 A1
- Scraper control method2 Mar 2023US 2023/0066877 A1Deere & Company
- Electrical drive system for earth moving machinery2 Mar 2023US 2023/0067152 A1
Most cited
By later US patents
- Dual motor hydrostatic drive system54US 3,948,049 ACaterpillar Tractor Co. · 1976
- Excavating system utilizing machine-to-machine communication31US 8,170,756 B2Caterpillar Inc. · 2012
- Wheel tractor scraper production optimization29US 8,229,631 B2Caterpillar Inc. · 2012
- Brake cooling circuit26US 4,083,469 ACaterpillar Tractor Co. · 1978
- Hydraulic drive assist for scrapers24US 3,981,374 AClark Equipment Company · 1976