Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5637740 | Production of 2, 3-epoxypropyl trialkyl ammonium chlorides | Wolfgang Fischer, Manfred Langer | 1997-06-10 |
| 5116967 | Method of manufacturing an adjustable-viscosity cationic starch | Wolfgang Fischer, Dietmar Bischoff, Michael Huss, Reinhard Stober | 1992-05-26 |