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Patent applications and USPTO patent grants for Witter; David E..The latest application filed is for "process for producing crystalline silicon spheres".
Patent | Date |
---|---|
Process for producing crystalline silicon spheres Grant 4,637,855 - Witter , et al. January 20, 1 | 1987-01-20 |
Control of nitrogen and/or oxygen in silicon via nitride oxide pressure during crystal growth Grant 4,591,409 - Ziem , et al. May 27, 1 | 1986-05-27 |
Deposition of silicon at temperatures above its melting point Grant 4,547,258 - Witter , et al. October 15, 1 | 1985-10-15 |
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