Francois P. Pretorius
7Patents
1h-index
27Co-inventors
51Inventor score
Filing activity: Mar 15, 1996 → Oct 19, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5751569A | Geographic train control | Performing Operations; Transporting | 41 | Expired |
| US8989926B2 | Railroad signaling and communication system using a fail-safe voltage sensor to verify trackside conditions in safety-critical railroad applications | Fixed Constructions | 1 | Active |
| US11871234B2 | Secure vehicle to vehicle PTC communication | Electricity | 0 | Active |
| US11527151B2 | System and method for monitoring traffic control devices | Physics | 0 | Active |
| US9457821B2 | Railroad signaling and communication system using a fail-safe voltage sensor to verify trackside conditions in safety-critical railroad applications | Fixed Constructions | 0 | Active |
| US11176811B2 | System and method for monitoring traffic control devices | Physics | 0 | Active |
| US11511782B2 | Control system for enforcing conditional authorities using vehicle-to-vehicle monitoring | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.