Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5227022 | Process for increasing pulp brightness with zeolites and easily decomposable organic chelating agents | Wolfgang Leonhardt, Hans U. Suess, Holger Glaum | 1993-07-13 |
| 4421464 | Liquid helium pump | Klaus Jentzsch | 1983-12-20 |
| 4371158 | Sheet tilting suction type separator | Karl-Heinz Marx, Klaus Winkler, Joachim Jentzsch | 1983-02-01 |