Michael W. Null
9Patents
6h-index
12Co-inventors
60Inventor score
Filing activity: Dec 29, 1975 → Dec 11, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5327053A | Apparatus and method for detecting rotor position in a sensorless and brushless DC motor | Electricity | 56 | Expired |
| US6064539A | Method of retracting a read and/or write head for parking | Physics | 18 | Expired |
| US4320255A | Radio with audio controls and associated displays | Electricity | 12 | Expired |
| US4028627A | Sample and hold valley detector | Electricity | 10 | Expired |
| US4514651A | ECL To TTL output stage | Electricity | 7 | Expired |
| US4501974A | Pulse stretching and level shifting circuit | Electricity | 6 | Expired |
| US4485352A | Current amplifier | Electricity | 5 | Expired |
| US5920183A | Voltage regulator for regulating its output voltage selectively with respect to more than one voltage | Physics | 5 | Expired |
| US4501979A | Current amplifier having multiple selectable outputs | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.