Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4567294 | Preparation of ammonium carbamate | Manfred Dressel, Heinrich Eberle, Willi Ripperger, Wolfgang Ruehenbeck | 1986-01-28 |
WZ
Werner Zwick
Overall (All Time): #3,989,545 of 4,157,543Top 100%
1
Patents All Time