Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4369165 | Recovery of tungsten values from alkali tungstate solutions by solvent extraction | Tai K. Kim, Martin Vogt, Robert P. McClintic | 1983-01-18 |
| 4360502 | Recovery of tungsten values from alkali tungstate solutions by solvent extraction | Robert P. McClintic, Tai K. Kim | 1982-11-23 |
| 4348231 | Method of recovering metal carbides | Joseph E. Ritsko, Thomas L. Henson | 1982-09-07 |
| 4288413 | Separating molybdenum values from an aqueous solution containing tungsten by solvent extraction | Tai K. Kim | 1981-09-08 |
| 4283257 | Process for preparing ammonium metatungstate | Clarence D. Vanderpool | 1981-08-11 |
| 4278642 | Method for removing molybdenum from tungstate solutions by solvent extraction | Tai K. Kim | 1981-07-14 |
| 4278463 | Process for recovering cobalt | Clarence D. Vanderpool, Robert P. McClintic, Richard G. W. Gingerich | 1981-07-14 |
| 4261959 | Process for extracting ferric iron from an aqueous solution | Tai K. Kim | 1981-04-14 |
| 4233063 | Process for producing cobalt powder | Joseph E. Ritsko, John J. Culkin, Howard L. Acla | 1980-11-11 |
| 4185078 | Extraction process for recovery of rhenium | L. Rita Quatrini | 1980-01-22 |