| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 3 | |
| #2 | United States | 3 | |
| #3 | Germany | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Canada | 1 | |
| #6 | France | 1 |
| # | Technology | |
|---|---|---|
| #1 | Alarm systems | |
| #2 | Unspecified technologies | |
| #3 | Optical systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Owers Ian Alexander | 4 |
| #2 | Owers Ian A | 2 |
| #3 | Galloway John L | 2 |
| #4 | Ellis Lyndon | 1 |
| #5 | Galloway John Lindsay | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB9107062D0 | Intruder detection arrangements and methods | |
| DE4030993A1 | SECURITY SIGNALING SYSTEM | |
| DE3906761A1 | Security-sensor system (safety-sensor system) | |
| GB8829892D0 | Radiation detection arrangements and methods | |
| EP0274889A2 | Security sensors | |
| EP0209385A2 | Passive infra-red sensors | |
| GB8531491D0 | Passive infra-red sensors |