David M. Upton
5Patents
5h-index
7Co-inventors
56Inventor score
Filing activity: Mar 31, 1992 → Mar 11, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5420541A | Microwave doherty amplifier | Electricity | 131 | Expired |
| US5568086A | Linear power amplifier for high efficiency multi-carrier performance | Electricity | 60 | Expired |
| US5270667A | Impedance matching and bias feed network | Electricity | 18 | Expired |
| US5289142A | Transmit/receive switch for phased array antenna | Electricity | 10 | Expired |
| US9083351B1 | Phase lock loop with tracking filter for attenuating spurious signals of a swept local oscillator | Electricity | 8 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.