David Lapczynski
3Patents
2h-index
2Co-inventors
30Inventor score
Filing activity: Jan 14, 2005 → Oct 25, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7469817B2 | Validating removable fare collection system | Physics | 4 | Expired |
| US7624914B2 | Validating removable fare collection system | Physics | 2 | Active |
| US8856024B2 | Determining companion and joint cards in transit | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.