Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4229346 | Production of hexamethylenimine | Herbert Toussaint, Herwig Hoffmann | 1980-10-21 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4229346 | Production of hexamethylenimine | Herbert Toussaint, Herwig Hoffmann | 1980-10-21 |