Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6740302 | Method for producing high-purity sulphuric acid | Martin Hostalek, Werner Buttner, Chih-Peng Lu, Ching-Jung Kan, Ekkehart Seitz +1 more | 2004-05-25 |
RH
Rolf Hafner
Overall (All Time): #3,479,937 of 4,157,543Top 85%
1
Patents All Time