Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866151 | Polysaccharide graft polymers containing acetal groups and their conversion to aldehyde groups | John J. Tsai, Robert L. Billmers | 1989-09-12 |
| 4804769 | Acetals useful for the preparation of polysaccharide derivatives | Daniel B. Solarek, Martin M. Tessler, Robert L. Billmers, Diane J. Lamb, John J. Tsai | 1989-02-14 |
| 4801699 | Polysaccharide esters containing acetal and aldehyde groups | Diane J. Lamb, Gary T. Martino | 1989-01-31 |