Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866207 | Process for concentrating an urea solution by evaporation | Henk C. Burks | 1989-09-12 |
| 4801747 | Process for preparing urea | — | 1989-01-31 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866207 | Process for concentrating an urea solution by evaporation | Henk C. Burks | 1989-09-12 |
| 4801747 | Process for preparing urea | — | 1989-01-31 |