Fred Mast
10Patents
6h-index
6Co-inventors
59Inventor score
Filing activity: Dec 27, 1976 → Sep 9, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4078858A | Measuring head | Physics | 12 | Expired |
| US4371258A | Illuminating device for photographic copying apparatus | Physics | 12 | Expired |
| US4143279A | Method and apparatus for testing the print quality of printed texts, more particularly banknotes | Physics | 9 | Expired |
| US4341473A | Measuring head in or for a densitometer | Physics | 6 | Expired |
| US4865456A | Measuring head | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4929084A | Measuring head | Physics | 6 | Expired |
| US4754307A | Photographic copying apparatus with master format adjustment | Physics | 4 | Expired |
| US4519682A | Optical image amplifier | Physics | 4 | Expired |
| US5993016A | Optical reproduction system | Physics | 2 | Expired |
| US4247168A | Zoom lens for photographic printers | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.