Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4354922 | Processing of heavy hydrocarbon oils | Francis J. Derbyshire, Darrell D. Whitehurst | 1982-10-19 |
| 4334977 | Method for the generation of recycle solvents in coal liquefaction | Francis J. Derbyshire, Darrell D. Whitehurst | 1982-06-15 |