Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798659 | Addition of calcium compounds to the carbothermic reduction of silica | Vishu D. Dosaj, Daniel H. Filsinger | 1989-01-17 |
JT
James E. Trunzo
Overall (1989): #140,541 of 140,708Top 100%
1
Patents 1989