| 4965116 |
Method for separation of cobalt from nickel |
Michael J. Miller |
1990-10-23 |
$9,898,000 |
| 4804407 |
Method for recovering cobalt from hexammine cobaltic (111) solutions |
Clarence D. Vanderpool, Michael J. Miller |
1989-02-14 |
$6,200,000 |
| 4741886 |
Process for recovering tungsten from tungsten bearing material containing arsenic |
Clarence D. Vanderpool, Martin B. MacInnis |
1988-05-03 |
$16,822,000 |
| 4690710 |
Process for producing cobalt metal powder |
Clarence D. Vanderpool, Michael J. Miller, Richard G. W. Gingerich |
1987-09-01 |
$6,301,000 |
| 4626425 |
Recovery of tungsten from ammoniacal solutions |
Clarence D. Vanderpool, Martin B. MacInnis, Michael J. Miller |
1986-12-02 |
$6,708,000 |
| 4624844 |
Process for producing ammonium paratungstate |
Clarence D. Vanderpool, Martin B. MacInnis, Michael J. Miller |
1986-11-25 |
$6,891,000 |
| 4623534 |
Method for producing ammonium paratungstate |
Clarence D. Vanderpool, Michael J. Miller |
1986-11-18 |
$8,628,000 |
| 4612039 |
Production of pure cobalt metal powder |
Clarence D. Vanderpool, Michael J. Miller |
1986-09-16 |
$3,123,000 |
| 4608084 |
Recovery of cobalt and chromium |
Michael J. Miller, Clarence D. Vanderpool, Martin B. MacInnis |
1986-08-26 |
$6,290,000 |
| 4608235 |
Recovery of cobalt |
Clarence D. Vanderpool, Richard G. W. Gingerich |
1986-08-26 |
$6,290,000 |
| 4594230 |
Recovery of cobalt |
Michael J. Miller, Clarence D. Vanderpool |
1986-06-10 |
$5,590,000 |
| 4552729 |
Method for removing tin from sodium tungstate solution |
Michael J. Miller, Martin Vogt |
1985-11-12 |
$2,900,000 |
| 4454098 |
Process for reclaiming tungsten from a hazardous waste |
Clarence D. Vanderpool, Michael J. Miller, Martin B. MacInnis |
1984-06-12 |
$5,421,000 |
| 4452633 |
Method for producing cobalt metal powder |
Michael J. Miller, Clarence D. Vanderpool, Eric F. Husted |
1984-06-05 |
$3,081,000 |
| 4448755 |
Method for removal of tin from ammonium tungstates |
Michael J. Miller, Martin B. MacInnis, James N. Christini, Martin Vogt |
1984-05-15 |
$6,558,000 |
| 4432950 |
Recovery of refractory metal values from scrap cemented carbide |
Clarence D. Vanderpool, Richard G. Warmington |
1984-02-21 |
$5,391,000 |
| 4395278 |
Method for producing cobalt metal powder |
Clarence D. Vanderpool, Richard G. W. Gingerich |
1983-07-26 |
$10,672,000 |
| 4381937 |
Method for producing cobalt metal powder |
Richard G. W. Gingerich, Clarence D. Vanderpool, Martin B. MacInnis |
1983-05-03 |
$6,027,000 |
| 4348224 |
Method for producing cobalt metal powder |
Richard G. W. Gingerich, Clarence D. Vanderpool, Joseph E. Ritsko |
1982-09-07 |
$5,504,000 |
| 4329169 |
Method for producing cobalt metal powder |
Richard G. W. Gingerich |
1982-05-11 |
$7,527,000 |