| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 4 | |
| #2 | Canada | 4 | |
| #3 | WIPO (World Intellectual Property Organization) | 4 | |
| #4 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Computer technology | |
| #3 | IT methods for management | |
| #4 | Control |
| # | Technology | |
|---|---|---|
| #1 | Radio navigation | |
| #2 | Data recognition and presentation | |
| #3 | Data processing systems | |
| #4 | Alarm systems | |
| #5 | Traffic control systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Woolley Louis A | 15 |
| #2 | Weimar James H | 12 |
| #3 | Greasley Ian | 4 |
| #4 | Ferrara Charles F | 4 |
| Publication | Filing date | Title |
|---|---|---|
| WO9749972A2 | Measuring distance | |
| US5774876A | Managing assets with active electronic tags | |
| US5892441A | Sensing with active electronic tags | |
| US5804810A | Communicating with electronic tags |