Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4423194 | Polyquaternary ammonium compounds, their preparation, their use in the production of paper and paper treatment agents containing them | Wilfried Lobach, Peter Haas, Gunter Kolb, Joachim Probst | 1983-12-27 |