Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4338412 | Intumescent compositions obtained by reacting polyisocyanates, phosphorus-containing substances and aromatic hydroxy carboxylic acids on salts | — | 1982-07-06 |
| 4334992 | Modular block for osmotic methods of separation | Jurgen Lahrs, Eberhard Born | 1982-06-15 |
| 4320067 | Process for the preparation of modified polyisocyanates | Helmut Kleimann, Hans-Albrecht Freitag | 1982-03-16 |