Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 11044541 | Loudspeaker with mounting assembly | Kyle A. Ambrose, Chanc L. Bergbower | 2021-06-22 | |
| 6294362 | Rapid ferrous sulfate biooxidation | Kevin Stuffle | 2001-09-25 | |
| 6284530 | Sulfide mineral concentrate bioleaching | Kevin Stuffle, Kelly L. Karlage, Tom L. Young | 2001-09-04 | $136,188,000 |
| 6139602 | Carbon catalyzed leaching of metal-containing ores | Kevin Stuffle, Sean P. Premeau | 2000-10-31 | $33,856,000 |
| 6063158 | Sulfide mineral concentrate bioleaching | Kevin Stuffle, Kelly L. Karlage, Tom L. Young | 2000-05-16 | |
| 5980342 | Flushing system for a marine propulsion engine | Andrew K. Logan, Matthew W. Jaeger, Lawrence C. Bibow, William E. Hughes | 1999-11-09 | $9,896,000 |
| 5413624 | Enhancement of bioleach systems using nutrient additives | Patricia A. Rusin | 1995-05-09 | |
| 5248329 | Biological processes for recovering heavy metals | Patricia A. Rusin | 1993-09-28 | |
| 5055130 | Method for recovering silver from refractory manganese ores | Robert G. Arnold, Norval A. Sinclair | 1991-10-08 |