Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821312 | Cermet inert anode materials and method of making same | Siba P. Ray, Frankie E. Phelps, Joseph M. Dynys, Douglas A. Weirauch, Jr. | 2004-11-23 |
| 6758991 | Stable inert anodes including a single-phase oxide of nickel and iron | Robert A. DiMilia, Joseph M. Dynys, Douglas A. Weirauch, Jr., Siba P. Ray, Frankie E. Phelps | 2004-07-06 |
| 6423195 | Inert anode containing oxides of nickel, iron and zinc useful for the electrolytic production of metals | Siba P. Ray, Douglas A. Weirauch, Jr. | 2002-07-23 |
| 6423204 | For cermet inert anode containing oxide and metal phases useful for the electrolytic production of metals | Siba P. Ray, Douglas A. Weirauch, Jr. | 2002-07-23 |
| 6416649 | Electrolytic production of high purity aluminum using ceramic inert anodes | Siba P. Ray, Douglas A. Weirauch, Jr., Robert A. DiMilia, Joseph M. Dynys, Frankie E. Phelps +1 more | 2002-07-09 |
| 6372119 | Inert anode containing oxides of nickel iron and cobalt useful for the electrolytic production of metals | Siba P. Ray, Douglas A. Weirauch, Jr. | 2002-04-16 |
| 6217739 | Electrolytic production of high purity aluminum using inert anodes | Siba P. Ray, Douglas A. Weirauch, Jr. | 2001-04-17 |
| 6162334 | Inert anode containing base metal and noble metal useful for the electrolytic production of aluminum | Siba P. Ray | 2000-12-19 |