Erich Eckhardt
5Patents
4h-index
7Co-inventors
50Inventor score
Filing activity: Jun 23, 1981 → Jun 7, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4543787A | Controls for continuously adjustable drive | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US4553620A | Vehicles with differential speed steering | Performing Operations; Transporting | 10 | Expired |
| US4405287A | Regulating devices for a plurality of pumps driven by a common source | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6736048B2 | Hydrostatic axial piston machine | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US6805148B2 | Relief-valve jet | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.