Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876336 | Amphoteric starches and process for their preparation | Daniel B. Solarek, Teresa A. Dirscherl, Wadym Jarowenko | 1989-10-24 |
| 4872951 | Starch blends useful as external paper sizes | Walter Maliczyszyn | 1989-10-10 |