Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5633310 | Water-soluble copolymers of vinylacetate and maleamic acids and use as fluidizers high-range water-reducers for aqueous suspensions | Anna Huber, J urg Widmer | 1997-05-27 |