Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7096706 | Drawing apparatus and method of operating same | Hermann-Josef Klingen, Thomas Winterfeldt | 2006-08-29 |
| 6976377 | Method of and apparatus for producing tubes of metal | Hermann-Josef Klingen, Thomas Winterfeldt | 2005-12-20 |
| 6715332 | Method of drawing metal workpieces and drawing unit for a drawing machine | Hermann-Josef Klingen, Karl Hausler | 2004-04-06 |
| 6688152 | Modular drawing apparatus and drawing | Hermann-Josef Klingen, Karl Hausler | 2004-02-10 |
| 6684675 | Drawing machine | Hermann-Josef Klingen, Ralf Bonsels, Thomas Winterfeldt | 2004-02-03 |