Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5186846 | Dye dispersants: aryl sulphonic acid-formaldehyde condensate or ligninsulfonate | Ralf Brueckmann, Willi Bury, Johannes P. Dix, Manfred Herrmann, Erich Kromm +4 more | 1993-02-16 |
WD
Waldemar Dlugosch
Overall (All Time): #3,817,427 of 4,157,543Top 95%
1
Patents All Time