Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4332667 | Liquefaction process for solid carbonaceous materials containing alkaline earth metal humates | William R. Epperly, Roy J. Brunson | 1982-06-01 | $10,881,000 |