Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5973217 | Method for processing recycled or scrap plastics | Horst Hastrich, Christian Hecka, Rolf Holighaus, Klaus Niemann | 1999-10-26 |
| 5789636 | Process for recovering synthetic raw materials and fuel components from used or waste plastics | Rolf Holighaus, Klaus Niemann | 1998-08-04 |
| 5100536 | Method of processing substances | Ulrich Bonisch, Wolfdieter Klein | 1992-03-31 |
| 4983279 | Process for the hydrogenation of liquid charge materials which contain carbon | Wolfdieter Klein, Alfons Feuchthofen, Ulrich Boenisch | 1991-01-08 |
| 4666589 | Method for pretreating feedstocks for coal hydrogenation | Wolf-Dieter Klein, Alfons Feuchthofen, Ulrich Bonisch | 1987-05-19 |