David J. Cowl
8Patents
8h-index
5Co-inventors
58Inventor score
Filing activity: Oct 24, 1996 → Dec 29, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5938721A | Position based personal digital assistant | Physics | 951 | Expired |
| US6266612A | Position based personal digital assistant | Physics | 399 | Expired |
| US6411899B1 | Position based personal digital assistant | Physics | 364 | Expired |
| US6088650A | Vehicle tracker, mileage-time monitor and calibrator | Physics | 59 | Expired |
| US5987378A | Vehicle tracker mileage-time monitor and calibrator | Physics | 38 | Expired |
| US6353796B1 | Vehicle tracker, mileage-time monitor and calibrator | Physics | 32 | Expired |
| US8111271B2 | Gray scale drive sequences for pulse width modulated displays | Physics | 18 | Active |
| US8264507B2 | Gray scale drive sequences for pulse width modulated displays | Physics | 16 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.