Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683663 | Decomposition of cyanide in electrolytic cell lining | Rudolph Keller, David B. Stofesky | 1997-11-04 |
| 5538604 | Suppression of cyanide formation in electrolytic cell lining | Rudolf Keller, David B. Stofesky | 1996-07-23 |
| 5137867 | Superconducting cermet formed in situ by reaction sintering | Siba P. Ray, William E. Libent | 1992-08-11 |
| 4812168 | Process for carbothermic production of alkaline earth metal aluminide and recovery of same | Melvin H. Brown | 1989-03-14 |
| 4770696 | Process for carbothermic production of calcium aluminide using calcium carbide | Melvin H. Brown, Jagdish C. Agarwal | 1988-09-13 |
| 4769069 | Process for production of aluminum by carbothermic production of alkaline earth metal aluminide and stripping of aluminum from alkaline earth metal aluminide with halide stripping agent | Melvin H. Brown, David H. De Young | 1988-09-06 |
| 4769067 | Process for production of aluminum by carbothermic production of an alkaline earth metal aluminide such as calcium aluminide and recycling of reactant byproducts | Melvin H. Brown | 1988-09-06 |
| 4769068 | Process for production of aluminum by carbothermic production of alkaline earth metal aluminide and stripping of aluminum from alkaline earth metal aluminide with sulfurous stripping agent | Melvin H. Brown, Siba P. Ray | 1988-09-06 |
| 4765832 | Process for carbothermic production of calcium aluminide using slag containing calcium aluminate | Melvin H. Brown, Noel Jarrett | 1988-08-23 |
| 4765831 | Process for production of alkaline earth metal by carbothermic production of alkaline earth metal aluminide and stripping of alkaline earth metal from alkaline earth metal aluminide with nitrogen stripping agent | Melvin H. Brown | 1988-08-23 |
| 4735654 | Process for reduction of metal compounds by reaction with alkaline earth metal aluminide | Melvin H. Brown | 1988-04-05 |
| 4724054 | Process for production of aluminum and alkaline earth metal by carbothermic production of alkaline earth metal aluminide and reduction of aluminum and alkaline earth metal in electrolytic reduction cell | Melvin H. Brown | 1988-02-09 |
| 4411747 | Process of electrolysis and fractional crystallization for aluminum purification | Robert K. Dawless, Kenneth A. Bowman, Robert M. Mazgaj | 1983-10-25 |
| 4299619 | Energy efficient production of aluminum by carbothermic reduction of alumina | Nancy M. Fitzgerald | 1981-11-10 |
| RE30330 | Aluminum purification | Subodh K. Das, Richard A. Milito, Robert M. Mazgaj, Walter W. Hill | 1980-07-08 |