Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4388458 | Use of ultrasonic energy to improve nitrocellulose purification | Robert Baumann, Marcel H. Blais | 1983-06-14 |
| 4365059 | Nitration of cellulose | Robert Baumann, Marcel H. Blais | 1982-12-21 |