Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5954185 | Centrifugal feeder | Michael Eshelman, George Harrison, Chad Roberts, Brian Karp, David R. Pugh +1 more | 1999-09-21 |
| 4508597 | Recovery of organic solvents from liquid mixtures | — | 1985-04-02 |
| 4279739 | Process for separating bituminous materials | — | 1981-07-21 |
| 4273644 | Process for separating bituminous materials | Samuel W. Harris | 1981-06-16 |