Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7819937 | Use of alumina-carbon agglomerates in the carbothermic production of aluminum | Richard J. Fruehan, David J. Roha, Mark L. Weaver | 2010-10-26 |
| 7753988 | Use of alumina-carbon agglomerates in the carbothermic production of aluminum | Richard J. Fruehan, David J. Roha, Mark L. Weaver | 2010-07-13 |
| 5788945 | Method for refining of silicon | — | 1998-08-04 |