Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4956505 | Process for the preparation of 4,4-dimethyl-1-(p-chlorophenyl)pentan-3-one | Franz-Josef Mais, Helmut Fiege | 1990-09-11 |
| 4760209 | Process for preparing 3,5-dichloro-.alpha.-methylstyrene | Heinz U. Blank, Erich Wolters, Bernhard Beitzke, Karlfried Wedemeyer, Michael Herzhoff +2 more | 1988-07-26 |
| 4650910 | Process for the preparation of substituted styrenes | Karlfried Wedemeyer | 1987-03-17 |
| 4594467 | Preparation of 3,5-dichloro-.alpha.-methylstyrene | Herbert Diehl, Karlfried Wedemeyer | 1986-06-10 |