Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5811748 | Low-voltage power switch with a switching chamber | Martin Böttcher, Sezai Turkmen | 1998-09-22 |
| 5756951 | Arc chute having three barriers for the passage of arc gasses | Martin Böttcher, Gunter Seidler-Stahl | 1998-05-26 |
| 5731561 | Power switch with an ARC quenching device | Gunter Seidler-Stahl | 1998-03-24 |
| 4845460 | Multipole low-voltage circuit breaker with an insulating material housing and arc-quenching chambers | Martin Boettcher, Bernhard Pfeiffer | 1989-07-04 |
| 4845459 | Contact arrangement of a low-voltage circuit breaker with electro-dynamic breaking | Martin Boettcher, Bernhard Pfeiffer | 1989-07-04 |
| 4649247 | Contact assembly for low-voltage circuit breakers with a two-arm contact lever | Bernhard Preuss | 1987-03-10 |
| 4599590 | Switch with a selective release | Bernhard Preuss | 1986-07-08 |
| 4562419 | Electrodynamically opening contact system | Bernhard Preuss | 1985-12-31 |