Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5028736 | Process for the separation and recovery of naphthalene-sulfonic acids from aqueous solutions | Ulrich Girrbach, Siegbert Rittner, Klaus Schmiedel | 1991-07-02 |
SB
Siegfried Bildstein
Overall (All Time): #3,879,941 of 4,157,543Top 95%
1
Patents All Time