Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4557840 | Continuous process for overbasing petroleum sulfonate in a pipe reactor with multiple entry of countercurrent carbon dioxide | Douglas S. Jack | 1985-12-10 |
| 4255270 | Characterizing petroleum sulfonates by phase behavior | Donald M. Sitton | 1981-03-10 |