Patents per Year
Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7819937 | Use of alumina-carbon agglomerates in the carbothermic production of aluminum | David J. Roha, Anders Schei, Mark L. Weaver | 2010-10-26 | $46,494,000 |
| 7753988 | Use of alumina-carbon agglomerates in the carbothermic production of aluminum | David J. Roha, Anders Schei, Mark L. Weaver | 2010-07-13 | $86,895,000 |
| 7556667 | Low carbon aluminum production method using single furnace carbothermic reduction operated in batch mode | — | 2009-07-07 | $49,409,000 |
| 6849101 | Method using selected carbons to react with Al2O and Al vapors in the carbothermic production of aluminum | Yun Li, Gerald E. Carkin | 2005-02-01 | $132,529,000 |
| 5378260 | Two-zone countercurrent smelter system and process | James H. Cox, John F. Elliott, deceased | 1995-01-03 |