Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4298748 | Preparation of 2-imidazolines | Toni Dockner, Uwe Kempe, Herbert Krug, Peter Magnussen, Werner Praetorius | 1981-11-03 |
HS
Hans J. Szymanski
Overall (All Time): #4,099,818 of 4,157,543Top 100%
1
Patents All Time