Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5139762 | Fluidized bed for production of polycrystalline silicon | — | 1992-08-18 |
| 4921026 | Polycrystalline silicon capable of yielding long lifetime single crystalline silicon | Howard J. Dawson | 1990-05-01 |
| 4906441 | Fluidized bed with heated liners and a method for its use | — | 1990-03-06 |
| 4826668 | Process for the production of ultra high purity polycrystalline silicon | William C. Breneman, Jon M. Gaston, David W. Hagan | 1989-05-02 |