Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877886 | Process for the production of alkylene carbonate | — | 1989-10-31 |
| 4830712 | Process for refining ethylene glycol | John W. Crandall | 1989-05-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877886 | Process for the production of alkylene carbonate | — | 1989-10-31 |
| 4830712 | Process for refining ethylene glycol | John W. Crandall | 1989-05-16 |