Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4897166 | Antifoaming additive for acid liquids | Detlef Melzer, Hans-Peter Biermann | 1990-01-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4897166 | Antifoaming additive for acid liquids | Detlef Melzer, Hans-Peter Biermann | 1990-01-30 |