Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7819937 | Use of alumina-carbon agglomerates in the carbothermic production of aluminum | Richard J. Fruehan, David J. Roha, Mark L. Weaver | 2010-10-26 | $46,494,000 |
| 7753988 | Use of alumina-carbon agglomerates in the carbothermic production of aluminum | Richard J. Fruehan, David J. Roha, Mark L. Weaver | 2010-07-13 | $86,895,000 |
| 5788945 | Method for refining of silicon | — | 1998-08-04 |