E02F 9/20
Drives
Official title: Drives; Control devices (gearings in general F16H; controlling in general G05; electric multi-motor drives H02K, H02P)
E02F9/20 (Drives) appears on 7,986 US grants and 8,663 published applications in this corpus.
Search patents in E02F- Granted patents
- 7,986
- Published applications
- 8,663
- Assignees
- 1,146
- Inventors
- 10,469
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 51 | 0 |
| 1977 | 45 | 0 |
| 1978 | 27 | 0 |
| 1979 | 21 | 0 |
| 1980 | 19 | 0 |
| 1981 | 30 | 0 |
| 1982 | 22 | 0 |
| 1983 | 19 | 0 |
| 1984 | 12 | 0 |
| 1985 | 35 | 0 |
| 1986 | 15 | 0 |
| 1987 | 26 | 0 |
| 1988 | 39 | 0 |
| 1989 | 30 | 0 |
| 1990 | 42 | 0 |
| 1991 | 41 | 0 |
| 1992 | 57 | 0 |
| 1993 | 57 | 0 |
| 1994 | 64 | 0 |
| 1995 | 46 | 0 |
| 1996 | 58 | 0 |
| 1997 | 54 | 0 |
| 1998 | 73 | 0 |
| 1999 | 99 | 0 |
| 2000 | 90 | 0 |
| 2001 | 97 | 13 |
| 2002 | 88 | 75 |
| 2003 | 84 | 108 |
| 2004 | 85 | 95 |
| 2005 | 87 | 108 |
| 2006 | 89 | 141 |
| 2007 | 79 | 151 |
| 2008 | 78 | 169 |
| 2009 | 96 | 193 |
| 2010 | 111 | 215 |
| 2011 | 153 | 187 |
| 2012 | 132 | 245 |
| 2013 | 223 | 385 |
| 2014 | 309 | 457 |
| 2015 | 389 | 422 |
| 2016 | 357 | 445 |
| 2017 | 422 | 423 |
| 2018 | 334 | 437 |
| 2019 | 424 | 401 |
| 2020 | 377 | 557 |
| 2021 | 416 | 629 |
| 2022 | 454 | 701 |
| 2023 | 461 | 558 |
| 2024 | 596 | 597 |
| 2025 | 560 | 538 |
| 2026 | 413 | 413 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E02F 9/22Hydraulic or pneumatic drives5,007
- E02F 9/2025Particular purposes of control systems not otherwise provided for2,428
- E02F 9/2058Electric or electro-mechanical or mechanical control devices of vehicle sub-units1,407
- E02F 9/2004Control mechanisms1,257
- E02F 9/202Mechanical transmission187
- E02F 9/2016Winches66
Recent patents
- Construction machine6 Oct 2026US 12,753,569 B2Hitachi Construction Machinery Co., Ltd.
- Control device, work machine, control method, and control system6 Oct 2026US 12,753,571 B2Komatsu Ltd.
- 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.
- Method for Operating a High-Voltage System of a Mobile Work Machine8 Oct 2026US 2026/0307495 A1Robert Bosch GmbH
- Mobile machine including thumb control system and associated method8 Oct 2026US 2026/0308867 A1Caterpillar Inc.
- Drive system of working machine8 Oct 2026US 2026/0308868 A1
- Drive system for work machine, control device for work machine, control method for work machine, storage medium storing control program for work machine, and work machine8 Oct 2026US 2026/0308874 A1Nabtesco Corporation
- Method for operating a system for performing a work task of a self-propelled construction machine from a control station located remotely from the construction machine, and a system for performing a work task of at least one self-propelled construction machine from a control station located remotely from the construction machine8 Oct 2026US 2026/0308877 A1BOMAG GmbH
Most cited
By later US patents
- Three-parameter optical fiber sensor and system497US 4,986,671 ALuxtron Corporation · 1991
- Force feedback lever236US 4,800,721 ACaterpillar Inc. · 1989
- Method and apparatus for establishing a perimeter defining an area to be traversed by a mobile machine227US 6,112,143 ACaterpillar Inc. · 2000
- Position sensing system for surveying and grading189US 4,820,041 AAGTEK Development Company, Inc. · 1989
- System for autonomous excavation and truck loading171US 6,363,632 B1Carnegie Mellon University · 2002