Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359426 | Process for the production of aromatic isocyanates containing aromatically bound sulfochloride groups | Heinz U. Blank, Erich Wolters, Norbert Langenfeld | 1982-11-16 |
| 4337333 | Substituted polyisocyanate or polyisocyanate mixtures of the diphenyl methane series containing chlorosulfonyl groups | Helmut Reiff | 1982-06-29 |