Ronald Barker
4Patents
4h-index
4Co-inventors
47Inventor score
Filing activity: Oct 2, 1978 → Jun 13, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6892942B1 | Roadside control device for a toll apparatus installed in a motor vehicle | Physics | 81 | Expired |
| US6816707B1 | Debiting device for deducting tolls | Physics | 37 | Expired |
| US6388581B1 | Method and system for monitoring the proper operation of a debiting device | Physics | 19 | Expired |
| US4246538A | Method of investigating the electrical resistivity of the ground and apparatus for use in the method | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.