Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6660061 | Vapor purification with self-cleaning filter | Gary B. Josephson, Christopher L. Aardahl | 2003-12-09 |
| 5545803 | Heating of solid earthen material, measuring moisture and resistivity | Phillip A. Gauglitz, Gautam Pillay, Theresa M. Bergsman, Eugene A. Eschbach, Steven Goheen +3 more | 1996-08-13 |
| 5347070 | Treating of solid earthen material and a method for measuring moisture content and resistivity of solid earthen material | Richard L. Richardson, Steven Goheen | 1994-09-13 |
| 5330291 | Heating of solid earthen material, measuring moisture and resistivity | Richard L. Richardson, Steven Goheen | 1994-07-19 |
| 5254231 | Method and apparatus for chemically altering fluids in continuous flow | Judson W. Virden, Jr., R. L. Richardson, Theresa M. Bergsman | 1993-10-19 |