Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4568427 | Continuous isolation of phthalic anhydride and maleic anhydride from reaction gases | Eckehard Danz, Ernest Miesen, Johannes E. Schmidt, Friedrich Wirth | 1986-02-04 |
GD
Gerd Dumbgen
Overall (All Time): #3,989,874 of 4,157,543Top 100%
1
Patents All Time