Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5292800 | Water-in-oil polymer emulsions | Heinrich Hartmann, Hans-Ulrich Wekel | 1994-03-08 |
| 5290880 | Preparation of finely divided, water-soluble polymers containing vinylamine units | Michael Kroener, Enrique Freudenberg, Heinrich Hartmann, Norbert Sendhoff | 1994-03-01 |