Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806165 | Preparation of activators for fast-setting cements | Elliot I. Band | 1989-02-21 |
| 4804649 | Alkaline oxalate precipitation process for forming metal oxide ceramic superconductors | — | 1989-02-14 |