Issued Patents 1989
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885028 | Process for producing prealloyed tungsten alloy powders | Nelson E. Kopatz, Jack E. Vanderpool, Howard H. Shaw | 1989-12-05 |
| 4884754 | Process for producing fine copper flakes | Preston B. Kemp, Jr. | 1989-12-05 |
| 4880170 | Process for producing fine copper powder with enhanced sinterability | Preston B. Kemp, Jr. | 1989-11-14 |
| 4859237 | Hydrometallurgical process for producing spherical maraging steel powders with readily oxidizable alloying elements | Nelson E. Kopatz, Joseph E. Ritsko | 1989-08-22 |
| 4853861 | Windshear measurement system | Douglas W. Ford, Shahram Daneshmandi | 1989-08-01 |
| 4847045 | Process for producing tungsten heavy alloy sheet | Preston B. Kemp, Jr. | 1989-07-11 |
| 4836850 | Iron group based and chromium based fine spherical particles | Preston B. Kemp, Jr. | 1989-06-06 |
| 4832907 | Process for producing tungsten heavy alloy sheet | Preston B. Kemp, Jr., James R. Spencer | 1989-05-23 |
| 4802915 | Process for producing finely divided spherical metal powders containing an iron group metal and a readily oxidizable metal | Nelson E. Kopatz, Joseph E. Ritsko | 1989-02-07 |
| 4800064 | Process for producing tungsten heavy alloy sheet using hydrometallurgically produced tungsten heavy alloy | Preston B. Kemp, Jr., Nelson E. Kopatz | 1989-01-24 |