David K. Trumpy
8Patents
5h-index
15Co-inventors
60Inventor score
Filing activity: Apr 16, 1982 → Nov 3, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6067965A | Method and system for determining a quantity of fuel to be injected into an internal combustion engine | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4446825A | Internal combustion engine with valves having a variable spring rate | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6860244B2 | Engine control with operating mode detection | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6970781B1 | Compression ratio mode selection logic for an internal combustion engine having discrete variable compression ratio control mechanism | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6581580B2 | Hydrocarbon vapor evacuation system | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5612667A | In-vehicle barometric pressure detection system | Performing Operations; Transporting | 5 | Expired |
| US6460513B1 | Method to adapt engine fuel control, by multi-component vaporization method, to actual volatility quality of fuel | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7228824B2 | Internal combustion engine having variable compression ratio selection as a function of projected engine speed | Mechanical Engineering; Lighting; Heating | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.