Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5061792 | Preparation of chitosan salts in aqueous alcoholic media | John E. Castle | 1991-10-29 |
| 4931551 | Dispersions of chitin and product therefrom | John E. Castle | 1990-06-05 |