Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6022395 | Method for increasing tap density of molybdenum powder | Jeffrey A. Eckert, David C. Sheppeck, Thomas R. Pinkowski | 2000-02-08 |
| 5734960 | Process for producing KS molybdenum | Thomas J. Patrician, Michael J. Miller, Michael J. Cheresnowsky, Vernon L. Carr, Jr. | 1998-03-31 |
| 5417945 | Process for recovering tungsten as an ammoniacal tungstate compound in which ammoniacal tungstate liquors are reclaimed | Richard G. W. Gingerich, Martin Vogt, Clarence D. Vanderpool, Michael J. Miller | 1995-05-23 |
| 5185030 | Method for producing extrafine pure metal powder | Michael J. Miller, Eric F. Husted | 1993-02-09 |
| 4933152 | Continuous process for purifying molybdenum | Judy L. Scheftic | 1990-06-12 |
| 4882131 | Process for recovering tungsten from organic solutions | John Powers, III, James C. Patton | 1989-11-21 |
| 4599223 | Separation of tungsten from rhenium | Alan D. Douglas, Kenneth T. Reilly, Martin B. MacInnis, John Powers, III | 1986-07-08 |
| 4557923 | Method for producing ammonium metatungstate from ammonium paratungstate | John Powers, III | 1985-12-10 |
| 4448755 | Method for removal of tin from ammonium tungstates | Richard A. Scheithauer, Michael J. Miller, Martin B. MacInnis, Martin Vogt | 1984-05-15 |
| 4360503 | Recovery of tungsten values from alkali tungstate solutions by solvent extraction | Carl Boyer, Martin Vogt | 1982-11-23 |
| 4298485 | Process of preparing lubricating oil additive containing tungsten | John Powers, III | 1981-11-03 |
| 4288216 | Calciner with tapered reverse feed spiral | Tai K. Kim, Robert P. McClintic | 1981-09-08 |
| 4288217 | Rotary calciner feed spiral | Tai K. Kim, Robert P. McClintic | 1981-09-08 |
| 4286946 | Calciner reverse feed discharge spiral | — | 1981-09-01 |