James E. Schimpf
13Patents
9h-index
18Co-inventors
69Inventor score
Filing activity: Jul 11, 1975 → Nov 30, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5537818A | Method for controlling an implement of a work machine | Fixed Constructions | 46 | Expired |
| US5701793A | Method and apparatus for controlling an implement of a work machine | Fixed Constructions | 45 | Expired |
| US5189940A | Method and apparatus for controlling an implement | Fixed Constructions | 36 | Expired |
| US5899008A | Method and apparatus for controlling an implement of a work machine | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5727387A | Apparatus for controlling an implement of a work machine | Fixed Constructions | 20 | Expired |
| US5876185A | Load sensing pump control for a variable displacement pump | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5617723A | Method for controlling an implement of a work machine | Fixed Constructions | 15 | Expired |
| US4116497A | Apparatus for reducing track noise in a track-type vehicle | Performing Operations; Transporting | 15 | Expired |
| US4553904A | Pump control with fluid responsive standby pressure | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US7913491B2 | Hydraulic flow control system and method | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US3991633A | Adjustable steering column assembly | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4381646A | Torque and high pressure limiting control for variable displacement pumps | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US4075906A | Variable speed governor | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.