Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5100536 | Method of processing substances | Claus Strecker, Wolfdieter Klein | 1992-03-31 |
| 4666589 | Method for pretreating feedstocks for coal hydrogenation | Wolf-Dieter Klein, Alfons Feuchthofen, Claus Strecker | 1987-05-19 |