Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5284641 | Method of producing silicon using an electri arc low shaft furnace | — | 1994-02-08 |
| 5264007 | Method of making fuel briquettes and the briquettes so made | — | 1993-11-23 |
| 5078927 | Process for making raw material bodies especially for the production of silicon or silicon alloys | — | 1992-01-07 |
| 5073107 | Apparatus for making green briquettes for forming Si, SiC or ferrosilicon | — | 1991-12-17 |
| 4975226 | Process for making green briquettes for forming Si or SiC | — | 1990-12-04 |
| 4820341 | Process for producing silicon or ferrosilicon in a low-shaft electric furnace | Robert Nooden | 1989-04-11 |
| 4389493 | Process for the production of silicon-containing and carbon-containing raw material moldings, and the use of such moldings | — | 1983-06-21 |
| 4366137 | Process for producing silicon | — | 1982-12-28 |
| 4364974 | Method of producing an intermediate in the production of silicon or silicon carbide | — | 1982-12-21 |