Robert Sydney Walker
3Patents
2h-index
5Co-inventors
33Inventor score
Filing activity: Nov 4, 1994 → May 10, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6311820A | Coin validator calibration | Physics | 7 | Expired |
| US5609234A | Coin validator | Physics | 5 | Expired |
| US5651444A | Coin handling apparatus and methods of determining information regarding moving coins | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.