Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860828 | Gas flooding processing for the recovery of oil from subterranean formations | Thomas Oswald | 1989-08-29 |
IR
Ian Robson
Overall (1989): #102,671 of 140,708Top 75%
1
Patents 1989