Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7551936 | Method of radio transmission in a danger alarm system | Werner Schropp | 2009-06-23 |
| 7363036 | Procedure for registering a new subscriber in a radio system through routers | Werner Schropp | 2008-04-22 |
| 7248854 | Method for radio transmission in an alarm signaling system | Werner Schropp | 2007-07-24 |
| 4286117 | Danger alarm system | Peer Thilo | 1981-08-25 |
| 4250353 | Danger alarm system | Karla Oberstein | 1981-02-10 |