Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7551936 | Method of radio transmission in a danger alarm system | Karlheinz Schreyer | 2009-06-23 |
| 7363036 | Procedure for registering a new subscriber in a radio system through routers | Karlheinz Schreyer | 2008-04-22 |
| 7248854 | Method for radio transmission in an alarm signaling system | Karlheinz Schreyer | 2007-07-24 |