Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4529037 | Method of forming carbon dioxide mixtures miscible with formation crude oils | William F. Yellig, Jr. | 1985-07-16 |
| 4277351 | Method for improving sulfonate surfactants used in enhanced recovery processing in subterranean oil-bearing formations | George W. Powers, Jr., Davis L. Taggart | 1981-07-07 |
| 4187907 | Waterflood method using surfactants | William Ward Owens, Duane L. Archer | 1980-02-12 |