Evan A. Edwards
14Patents
10h-index
16Co-inventors
65Inventor score
Filing activity: Feb 7, 1979 → Dec 19, 1989
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4824564A | Dry sump liquid filter | Mechanical Engineering; Lighting; Heating | 103 | Expired |
| US4263623A | Slow-frame video camera/recorder and image-sensing and signal processing device for use therewith | Emerging Cross-Sectional Technologies | 56 | Expired |
| US4990248A | Reverse osmosis apparatus | Performing Operations; Transporting | 43 | Expired |
| US4685648A | Counterbalancing apparatus for use in an optical instrument | Physics | 38 | Expired |
| US4851818A | Electronic controller for a water purifying unit | Chemistry; Metallurgy | 34 | Expired |
| US4243850A | Apparatus for tracking a record track on a video disc | Physics | 31 | Expired |
| US4909934A | Water purification system | Performing Operations; Transporting | 19 | Expired |
| US4488796A | Photographic still camera film system | Physics | 19 | Expired |
| US4295713A | Film and photographic apparatus | Physics | 17 | Expired |
| US5006246A | Baffled particulate material housing | Chemistry; Metallurgy | 10 | Expired |
| US4338634A | Frame-rate converting film scanner with two-dimensional solid state image sensing array | Electricity | 10 | Expired |
| US4245247A | Hard copy reproduction from video disc information | Electricity | 8 | Expired |
| US4223990A | Film and photographic apparatus | Physics | 7 | Expired |
| US4497556A | Photographic still camera | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.