Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5275649 | Doped zirconium mixed silicate pigment, method for the preparation thereof and products containing such pigment or a thus prepared pigment | Cornelis H. Zwart, Adrianus Smout | 1994-01-04 |