Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4915705 | Production of silica and fluorine-containing coproducts from fluosilicic acid | Tadeusz K. Wiewiorowski, Vivian C. Astley, Willis Thornsberry, Michael A. Murray | 1990-04-10 |
| 4657559 | Process for seed crystal preparation for phosphoric acid crystallization | Vivian C. Astley, Jody J. Taravella | 1987-04-14 |
| 4655789 | Phosphoric acid crystallization process | Tadeusz K. Wiewiorowski, Vivian C. Astley, David M. Dyer | 1987-04-07 |
| 4510027 | Simultaneous leaching and electrodeposition of precious metals | Tadeusz K. Wiewiorowski | 1985-04-09 |
| 4384889 | Simultaneous leaching and cementation of precious metals | Tadeusz K. Wiewiorowski | 1983-05-24 |