Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7948121 | Safety switching apparatus | Boris Kaufmann, Johannes Hopp, Rolf Dickhoff | 2011-05-24 |
| 7933104 | Safety switching apparatus for a failsafe disconnection of an electrical load | Ralf Bauer, Guenter Hornung | 2011-04-26 |
| 7898118 | Safety switching apparatus and method for safely switching an electrical load on and off | Udo Ratey, Christoph Zinser | 2011-03-01 |