Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886917 | Alkoxylation using calcium catalysts and products therefrom | Robert J. Knopf | 1989-12-12 |
| 4820673 | Alkoxylation using calcium catalysts and products therefrom | Robert J. Knopf | 1989-04-11 |