Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4339391 | Quaternary ammonium compounds | Wolfgang Wagemann, Gunther Tauber, Adolf May, Hans-Walter Bucking | 1982-07-13 |
EH
Erich Hoffmann
Overall (1982): #66,655 of 81,411Top 85%
1
Patents 1982