Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5047513 | Metal chelate resins | Heinz Dobeli | 1991-09-10 |
| 4877830 | Metal chelate resins | Heinz Dobeli | 1989-10-31 |
FH
Frich Hochuli
Overall (All Time): #2,318,829 of 4,157,543Top 60%
2
Patents All Time