John Coffee
11Patents
11h-index
16Co-inventors
65Inventor score
Filing activity: Apr 18, 1995 → May 10, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6611755B1 | Vehicle tracking, communication and fleet management system | Electricity | 690 | Expired |
| US6892131B2 | Vehicle tracking, communication and fleet management system | Electricity | 267 | Expired |
| US5689431A | Golf course yardage and information system | Physics | 237 | Expired |
| US6024655A | Map-matching golf navigation system | Physics | 137 | Expired |
| US7489993B2 | Vehicle tracking, communication and fleet management system | Electricity | 127 | Expired |
| US6236360A | Golf course yardage and information system | Physics | 95 | Expired |
| US6236940A | Display monitor for golf cart yardage and information system | Physics | 90 | Expired |
| US6525690B2 | Golf course yardage and information system with zone detection | Physics | 56 | Expired |
| US5878369A | Golf course yardage and information system | Physics | 49 | Expired |
| US6470242B1 | Display monitor for golf cart yardage and information system | Physics | 26 | Expired |
| US8484370B1 | Method and system for efficient extended data communications using GPRS | Electricity | 21 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.