Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5213737 | Extrusion method and apparatus for producing a body from powder material | Clarence E. Ford, Jr., Donald L. Guile | 1993-05-25 |
| 5174725 | Gear pump having multiple pairs of gears | Donald L. Guile | 1992-12-29 |
| 4353878 | Tungsten recovery from tungsten ore concentrates by caustic digestion | Marie B. Terlizzi, Brice E. Martin | 1982-10-12 |
| 4353879 | Tungsten recovery from tungsten ore concentrates by caustic digestion | Brice E. Martin | 1982-10-12 |
| 4353880 | Tungsten recovery from tungsten ore concentrates by caustic digestion | — | 1982-10-12 |
| 4353881 | Tungsten recovery from tungsten ore concentrates by caustic digestion | Martin Vogt, Brice E. Martin | 1982-10-12 |
| 4256708 | Process for recovering tungsten from cemented tungsten carbide | — | 1981-03-17 |