Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4589998 | Method for treating oil-water emulsions and recovering surfactants | James R. Bragg | 1986-05-20 |
| 4479542 | Enhanced oil recovery process utilizing a lignosulfonate as a _solubilizing agent in an afterflush | Mark P. Warchol | 1984-10-30 |
| 4293428 | Propoxylated ethoxylated surfactants and method of recovering oil therewith | Maura C. Puerto, Thomas L. Ashcraft, Rhoderick K. Saunders, Ronald L. Reed | 1981-10-06 |
| 4271907 | Microemulsions which compatibly incorporate viscosifiers and their use in enhanced oil recovery | — | 1981-06-09 |