Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5795408 | Process for the phosphatising treatment of steel strip or sheet galvanized on one side or alloy galvanized on one side | Klaus Bittner, Walter Jansen, Thomas Wendel, Hardy Wietzoreck | 1998-08-18 |
| 5177233 | Catalyst system and use for the preparation of 1,2-dichloroethane | Ludwig Schmidhammer, Klaus Haselwarter, Hermann Klaus, Gerhard Dummer | 1993-01-05 |
| 5068475 | Process for purifying unreacted 1,2-dichloroethane from a 1,2-dichloroethane pyrolysis process | Ludwig Schmidhammer, Klaus Haselwarter, Hermann Klaus | 1991-11-26 |
| 4986975 | Process for purifying hydrogen chloride from pyrolysis of 1,2-dichloroethane | Ludwig Schmidhammer, Peter Hirschmann, Hermann Klaus, Franz Haunberger | 1991-01-22 |