Stephen C. Hadden
6Patents
5h-index
4Co-inventors
45Inventor score
Filing activity: Mar 19, 1975 → May 30, 1978
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3965749A | Sampling and dilution method | Physics | 22 | Expired |
| US4189940A | Engine fault diagnosis | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US3978719A | Tachometer without physical connection to internal combustion engine | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US3977239A | Engine diagnosis from frequency components in exhaust | Physics | 7 | Expired |
| US4032852A | Filter which tracks changing frequency of input signal | Electricity | 5 | Expired |
| US4133205A | Identification of engine cylinder having fault | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.