Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4739654 | Method and apparatus for downhole chromatography | Mark P. DiStefano, Marvin C. Allen | 1988-04-26 | |
| 4183408 | Gas production from source rock | — | 1980-01-15 | $8,926,000 |