Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872951 | Starch blends useful as external paper sizes | Henry R. Hernandez | 1989-10-10 |
| 4832792 | Storage stable paper size composition containing ethoxylated castor oil | Emil D. Mazzarella, Jeffrey Atkinson | 1989-05-23 |