Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4243422 | Granular quartz glass product | Arnold Lenz, Rainer Haase | 1981-01-06 |
| 4185029 | Method of preparing orthosilicic acid alkyl esters | Arnold Lenz, Walter Rogler | 1980-01-22 |