Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4235821 | Hydrogenation of aliphatic nitriles to primary amines | Walter A. Butte, Jr., Richard E. Mitchell | 1980-11-25 |
| 4222961 | Process for hydrogenating aromatic dinitriles | Walter A. Butte, Jr., Howard P. Angstadt | 1980-09-16 |
| 4186146 | Hydrogenation of aromatic nitriles to primary amines | Walter A. Butte, Jr. | 1980-01-29 |