Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4385172 | Prevention of hornification of dissolving pulp | Donald M. MacDonald | 1983-05-24 |
| 4336370 | Process for activating cellulose pulp to improve ease of esterification | Donald M. MacDonald | 1982-06-22 |