Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9163764 | Valve for liquid vessels | Marco Zünd, Markus Erb | 2015-10-20 |
| 6626627 | Screw with tamper-proof head | Helmut Oesterle, Norbert Koeppel, Peter Kouwenhoven | 2003-09-30 |
| 6539826 | Screwing element | Helmut Oesterle, Norbert Koeppel, Peter Kouwenhoven | 2003-04-01 |
| 6360635 | Nut for accommodating the head of a fastening element or for inserting into the same | — | 2002-03-26 |
| 6240811 | Screwing element | Helmut Oesterle, Norbert Koeppel, Peter Kouwenhoven | 2001-06-05 |