Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6793122 | Method for the production of reinforced hollow sections with a continuous periphery | — | 2004-09-21 |
| 6681611 | Process and device for manufacturing holes on the circumference of hollow sections | Ulrich Haag, Thomas Huelsberg | 2004-01-27 |
| 6484551 | Process for manufacturing holes on the circumference of hollow sections | Ulrich Hagg, Thomas Huelsberg | 2002-11-26 |
| 6434989 | Method and device for producing leadthroughs on hollow profiles | — | 2002-08-20 |
| 6430981 | Method and device for producing leadthroughs on hollow profiles | — | 2002-08-13 |
| 6009734 | Process and device for manufacturing hollow sections with end-side cross-sectional expansions | Helmut Augustin, Henning Bloecker, Kai-Uwe Dudziak, Carsten Rogowski | 2000-01-04 |
| 5996455 | Method and device for making holes at the circumference of a hollow shape | Ulrich Haag, Thomas Hulsberg | 1999-12-07 |