Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5949662 | No-break power supply | Detlef Boldin, Karl Büttner, Karl Fleisch | 1999-09-07 |
| 5471377 | Process for controlling a power supply which supplies power to an electrostatic filter in which secondary circuit states are determined based on measured primary circuit values and in which short circuits are detected | Gerhard Donig, Norbert Grass, Hans-Joachim Knaak, Franz Neulinger, Helmut Schummer | 1995-11-28 |