Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4441943 | Polypeptides as chemical tagging materials | — | 1984-04-10 |
| 4437973 | Coal hydrogenation process with direct coal feed and improved residuum conversion | Derk T. A. Huibers | 1984-03-20 |
| 4407367 | Method for in situ recovery of heavy crude oils and tars by hydrocarbon vapor injection | — | 1983-10-04 |
| 4400263 | H-Coal process and plant design | Michael C. Chervenak, George DEVAUX | 1983-08-23 |
| 4400181 | Method for using fast fluidized bed dry bottom coal gasification | George J. Snell | 1983-08-23 |
| 4359353 | Polypeptides as chemical tagging materials | — | 1982-11-16 |
| 4354852 | Phase separation of hydrocarbon liquids using liquid vortex | — | 1982-10-19 |