Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5117048 | Process for the continuous preparation of monoisocyanates or polyisocyanates | Gottfried Zaby, Helmut Judat, Eric F. Boonstra, Stefaan De Vos, Rolf-W. Eckermann | 1992-05-26 |
| 4851570 | Process for the continuous production of mono- and polyisocyanates | Gottfried Zaby, Helmut Judat, Stefaan De Vos, Rolf-W. Eckermann | 1989-07-25 |
| 4337359 | Preparation of dimethyl polysulphides | Hermann Arold, Hans-Joachim Diehr, Helmut Porkert | 1982-06-29 |