| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Canada | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | Israel | 3 | |
| #5 | Australia | 1 | |
| #6 | Germany | 1 | |
| #7 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Electrical machinery and energy | |
| #3 | Telecommunications |
| # | Technology | |
|---|---|---|
| #1 | Alarm systems | |
| #2 | Cables and insulators | |
| #3 | Antennas |
| # | Name | Total Patents |
|---|---|---|
| #1 | Harman R Keith | 12 |
| #2 | Younge Dale R | 8 |
| #3 | Rich Brian G | 1 |
| #4 | Patchell John W | 1 |
| #5 | Harman Robert Keith | 1 |
| Publication | Filing date | Title |
|---|---|---|
| IL84623D0 | Intrusion detector | |
| US4612536A | Dual velocity leaky cable intrusion detector sensor | |
| CA1209656A | Shunt transmission line for use in leaky coaxial cable system | |
| IL84623A | Intrusion detecting system | |
| CA1214232A | Intrusion detector field probe | |
| CA1216340A | Intrusion detector |