Richard J. Coppa
6Patents
3h-index
7Co-inventors
42Inventor score
Filing activity: Dec 22, 1975 → Apr 4, 1983
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4047191A | Exposure control system having dynamic aperture flash arrangement | Physics | 26 | Expired |
| US4317620A | Variable proportional fill flash | Physics | 10 | Expired |
| US4375322A | Full range variable proportional fill flash system | Physics | 8 | Expired |
| US4299461A | Exposure and flash fire control system | Physics | 2 | Expired |
| US4486087A | Method of and apparatus for altering sensitivity of photometer to different scene portions | Physics | 1 | Expired |
| US4268138A | Follow focus flash arrangement | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.