Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6029694 | Diaphragm pressure regulating valve assembly | Helmut Schwegler, Roland Hoepfl, Wolfgang Bueser, Lorenz Drutu | 2000-02-29 |
| 5794597 | Device for supplying internal combustion engine with fuel from supply container | Helmut Schwegler, Kurt Frank, Ansgar Seitz, Wolfgang Bueser | 1998-08-18 |