Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4604216 | Drilling fluids | G. Allan Stahl, Earl Clark, Jr. | 1986-08-05 |
| 4548982 | Drilling fluids | Earl Clark, Jr. | 1985-10-22 |
| 4418191 | Solvent purification | — | 1983-11-29 |
| 4408039 | Separation of polymer of conjugated diene from a solution polymerization solvent using prestripping step | — | 1983-10-04 |
| 4406750 | Solvent removal from polymer solution utilizing flashed vapor as a heat source | — | 1983-09-27 |
| 4388444 | Preparing blends of a synthetic rubber with a poly(arylene oxide) by distillative displacement | — | 1983-06-14 |
| 4320091 | Apparatus for two stage catalytic hydrogenation of olefinically unsaturated dinitriles | — | 1982-03-16 |
| 4278506 | Polymer solution purification | — | 1981-07-14 |
| 4263228 | Two stage catalytic hydrogenation of olefinically unsaturated dinitriles | — | 1981-04-21 |
| 4232137 | Cooling an alpha-methylstyrene polymerization mass | Ronnie L. Lewis, George A. Moczygemba | 1980-11-04 |