Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5376767 | Plasma torch and an apparatus for producing fused silica using plasma arc electrodes | John K. Williams, Takumi Fukunishi, Takao Matsuoka | 1994-12-27 |
| 5256855 | Silica production | John K. Williams, Takumi Fukunishi, Takao Matsuoka | 1993-10-26 |
| 5028248 | Method of melting materials and apparatus therefor | John K. Williams, Leonard E. Olds | 1991-07-02 |
| 4891060 | Process for the recovery of gold using plasma | Gerhardus Overbeek, John K. Williams | 1990-01-02 |