Inventor · disambiguated record
Roger A. Frederick
Also filed as: FREDERICK ROGER A
3 granted patents·120 citations·filing 1975–1991
74Inventor score
Top patents by PatentIndex Score
3 records- 0186US5178720AMethod for controlling oxygen content of silicon crystals using a combination of cusp magnetic field and crystal and crucible rotation ratesMEMC ELECTRONIC MATERIALS·Filed 1991·Granted Jan 12, 1993·80 cites·20 claims
- 0280US4436577AMethod of regulating concentration and distribution of oxygen in Czochralski grown siliconMONSANTO CO·Filed 1982·Granted Mar 13, 1984·32 cites·8 claims
- 0339US4002410AApparatus and method for orienting monocrystalline material for sawingMONSANTO CO·Filed 1975·Granted Jan 11, 1977·8 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →