Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12219701 | Component carrier | Abderrazzaq Ifis | 2025-02-04 |
| 4956016 | Anticorrosive agents and use thereof | Lutz Schellenberg | 1990-09-11 |
| 4944813 | Process for phosphating metal surfaces | Kurt Hosemann | 1990-07-31 |
| 4793542 | Process for welding cast iron | Wolfgang Farrenkopf, Heinrich Gruenauer, Manfred Menzinger, Joachim von Hirsch | 1988-12-27 |
| 4707193 | Method for activating metal surfaces prior to zinc phosphation | Heinz Portz | 1987-11-17 |
| 4622078 | Process for the zinc/calcium phosphatizing of metal surfaces at low treatment temperatures | Manfred Breuer | 1986-11-11 |
| 4600447 | After-passivation of phosphated metal surfaces | Kurt Hosemann, Heinz Portz | 1986-07-15 |
| 4490185 | Phosphating solutions and process | Karl-Heinz Gottwald | 1984-12-25 |