Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837322 | Mixtures of sulfurous triazine compounds | Georg Hellwig, Rudolf Michel, Peter Kleinschmit, Siegfried Wolff | 1989-06-06 |
| 4835297 | Method of preparing sulfenic acid chlorides and sulfenic acid esters | Rudolf Michel, Peter Kleinschmit, Siegfried Wolff | 1989-05-30 |