Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859236 | Process for producing molybdenum-ruthenium metal powder | Thomas J. Patrician, Harry D. Martin, III | 1989-08-22 |
| 4859237 | Hydrometallurgical process for producing spherical maraging steel powders with readily oxidizable alloying elements | Walter A. Johnson, Nelson E. Kopatz | 1989-08-22 |
| 4802915 | Process for producing finely divided spherical metal powders containing an iron group metal and a readily oxidizable metal | Nelson E. Kopatz, Walter A. Johnson | 1989-02-07 |
| 4801472 | Process for coating tungsten carbide with cobalt metal | Jen S. Lee | 1989-01-31 |