Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4294715 | Impregnating agent and its use | Alfons Klein, Rudolf Kron, Karlfried Wedemeyer, Lothar Havenith | 1981-10-13 |
| 4203145 | Chloro-diphenyl | Alfons Klein, Rudolf Kron, Karlfried Wedemeyer | 1980-05-13 |