Roger A. Frederick
3Patents
3h-index
2Co-inventors
40Inventor score
Filing activity: Mar 17, 1975 → Aug 14, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5178720A | Method for controlling oxygen content of silicon crystals using a combination of cusp magnetic field and crystal and crucible rotation rates | Chemistry; Metallurgy | 44 | Expired |
| US4436577A | Method of regulating concentration and distribution of oxygen in Czochralski grown silicon | Chemistry; Metallurgy | 14 | Expired |
| US4002410A | Apparatus and method for orienting monocrystalline material for sawing | Physics | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.