Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6820474 | Method for the diagnosis of the voltage control for a piezoelectric actuator of an injection valve | Matthias Mrosik, Volker Pitzal, Udo Schulz | 2004-11-23 |
| 6807950 | Fuel injection device for internal combustion engine | Juergen Boss, Klaus Zimmerman | 2004-10-26 |
| 6784596 | Method of charging and discharging a piezoelectric element | Udo Schulz | 2004-08-31 |
| 6712047 | Method for determining the rail pressure of an injector having a piezoelectrical actuator | — | 2004-03-30 |
| 6705544 | Valve for controlling liquids | Patrick Mattes, Wolfgang Stoecklein, Udo Schulz | 2004-03-16 |