| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Australia | 2 | |
| #3 | Canada | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | New Zealand | 2 | |
| #6 | WIPO (World Intellectual Property Organization) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Measurement | |
| #3 | Control |
| # | Technology | |
|---|---|---|
| #1 | Guiding railway traffic | |
| #2 | Radio navigation | |
| #3 | Traffic control systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Erick Jack M | 13 |
| #2 | Lane Brent A | 7 |
| Publication | Filing date | Title |
|---|---|---|
| US6345233B1 | Collision avoidance using GPS device and train proximity detector | |
| AU1687497A | Train proximity detector | |
| WO9724704A1 | Train proximity detector | |
| US5739768A | Train proximity detector |