Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6437273 | Hybrid circuit breaker | Joachim Stechbarth, Kurt Kaltenegger, Lutz Niemeyer, Max Claessens, Klaus-Dieter Weltmann +1 more | 2002-08-20 |
| 6028759 | Electrical apparatus, in particular a surge arrestor, having an apparatus for indicating a fault current | Walter Schmidt | 2000-02-22 |
| 5578806 | Compressed gas-blast circuit breaker | Joachim Stechbarth | 1996-11-26 |