Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8900341 | Method and system for producing an aluminum—silicon alloy | Reinaldo Rodrigues Bittar | 2014-12-02 |
| 7569716 | Method of selecting silicon having improved performance | Michael George Kroupa, Paul Jacques Marion | 2009-08-04 |
| 5174810 | Ferrosilicon smelting in a direct current furnace | James B. May | 1992-12-29 |
| 5174982 | Control of carbon balance in a silicon smelting furnace | Cathryn Marie Haines, James B. May, John D. Oleson | 1992-12-29 |
| 5058126 | Silicon carbide beam as refractory in an open-arc furnace | — | 1991-10-15 |
| 5009703 | Silicon smelting process in direct current furnace | Arvid Neil Arvidson, James B. May | 1991-04-23 |
| 4997474 | Silicon smelting process | James B. May, John D. Oleson | 1991-03-05 |
| 4981668 | Silicon carbide as a raw material for silicon production | Alvin W. Rauchholz, Martin D. Young, Gary N. Bokerman | 1991-01-01 |
| 4898960 | Method of direct process performance improvement via control of silicon manufacture | Roland L. Halm, Oliver K. Wilding, Jr. | 1990-02-06 |
| 4898712 | Two-stage ferrosilicon smelting process | James B. May, Robert D. Jeffress | 1990-02-06 |
| 4897852 | Silicon smelting process | James B. May, John D. Oleson | 1990-01-30 |
| 4798659 | Addition of calcium compounds to the carbothermic reduction of silica | Daniel H. Filsinger, James E. Trunzo | 1989-01-17 |
| 4702902 | Handling of by-product gases from a silicon furnace | John D. Oleson, Gary N. Bokerman | 1987-10-27 |
| 4680096 | Plasma smelting process for silicon | Alvin W. Rauchholz | 1987-07-14 |
| 4247528 | Method for producing solar-cell-grade silicon | Lee Hunt | 1981-01-27 |