Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857207 | Process for reducing the phenol content in phenol-containing waters | Ulrich Hars, Karl Kurt Rocco Westphal | 1989-08-15 |
RS
Rolf Staiger
Overall (1989): #60,969 of 140,708Top 45%
1
Patents 1989