Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7034675 | Intrusion detection system including over-under passive infrared optics and a microwave transceiver | Michael J Bernard | 2006-04-25 |
| 7009106 | Shielding assembly and method | — | 2006-03-07 |
| 6493687 | Apparatus and method for detecting glass break | Ji Wu | 2002-12-10 |
| 5670943 | Pet immune intruder detection | Lawrence R. Tracy | 1997-09-23 |
| 5581237 | Microwave intrusion detector with threshold adjustment in response to periodic signals | — | 1996-12-03 |
| 5450062 | Detection system with reduced sensitivity to pin diode effect | — | 1995-09-12 |
| 5382944 | Supervised PIR motion-detection system | David B. Lederer | 1995-01-17 |
| 5216388 | Microwave oscillator with temperature compensation | — | 1993-06-01 |
| 5093656 | Active supervision of motion-detection systems | — | 1992-03-03 |
| 5083106 | Intruder detection system with programmable countdown timer for self-supervision | Karl H. Kostusiak | 1992-01-21 |
| 5077548 | "Dual technology intruder detection system with sensitivity adjustment after ""default""" | — | 1991-12-31 |
| 5043703 | Supervision of autodyne microwave motion-detection system | Daniel F. Pedtke | 1991-08-27 |