Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837002 | Removal of chlorate from caustic soda | Wolfgang Kochanek, Bernd Leutner | 1989-06-06 |
DS
Dieter Schlaefer
Overall (1989): #120,167 of 140,708Top 90%
1
Patents 1989