Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7545620 | Access protection device for a prohibited area | — | 2009-06-09 |
| 6060796 | Protective circuit | Frank Schmitz | 2000-05-09 |
| 5999395 | Monitoring circuit for a constant monitoring of a plurality of signal inputs | — | 1999-12-07 |