Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4504448 | Activated carbon adsorption of flotation reagents from tungsten solutions | Leo W. Beckstead, Robert F. Hogsett | 1985-03-12 |
| 4490339 | Process for recovering tungsten from MoS.sub.3 /WS.sub.3 precipitates | Leo W. Beckstead, Robert F. Hogsett | 1984-12-25 |