John K. Hefferan
2Patents
2h-index
4Co-inventors
41Inventor score
Filing activity: Dec 13, 1993 → Jan 3, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5535426A | Method and apparatus for moving primary control of a call in a multiple site communication system | Electricity | 28 | Expired |
| US9342935B2 | Smartphone based system for vehicle monitoring security | Physics | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.