Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4458240 | Energy wave electronic intruder detection system | Otto E. Rittenbach | 1984-07-03 |
| 4401980 | Constant current electronic intruder detection system | Otto E. Rittenbach | 1983-08-30 |
| 4400695 | Electronic intruder detection system | Otto E. Rittenbach | 1983-08-23 |
| 4326272 | Electronic intruder detection system | Otto E. Rittenbach | 1982-04-20 |
| 4187501 | Electronic intruder detection system | Otto E. Rittenbach | 1980-02-05 |