Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6910841 | Thread-forming screw | — | 2005-06-28 |
| 5575865 | Process for coating a workpiece of steel with an anti-corrosive agent | Wolfgang Hoffmann, Rudolf Reinecke, Hans W. Herr | 1996-11-19 |