Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347018 | Process for producing sulfolane compounds | Earl Clark, Jr., Howard F. Efner | 1994-09-13 |
| 5321121 | Arylene sulfide copolymer | Michael C. Yu | 1994-06-14 |
| 5290953 | Process for producing sulfolane compounds | Earl Clark, Jr. | 1994-03-01 |