Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658378 | Method of paper sizing using modified cationic starch | Walter Maliczyszyn | 1997-08-19 |
| 5595631 | Method of paper sizing using modified cationic starch | Walter Maliczyszyn | 1997-01-21 |