Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5218288 | Method and apparatus for monitoring the operational state and stand-by of a battery | Dietmar Fischer | 1993-06-08 |
| 4779182 | Power supply for an electrostatic filter | Hartmut Gaul, Walter Schmidt, Franz Neulinger, Helmut Schummer | 1988-10-18 |
| 4692632 | Procedure and apparatus for uninterruptible power supply | Hartmut Gaul, Adolf Haboeck | 1987-09-08 |