David M. Stumfall
6Patents
5h-index
3Co-inventors
52Inventor score
Filing activity: Oct 20, 1982 → Sep 19, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6011322A | Apparatus and method for providing power to circuitry implementing two different power sources | Electricity | 70 | Expired |
| US4507796A | Electronic apparatus having low radio frequency interference from system clock signal | Electricity | 25 | Expired |
| US5942811A | Apparatus and method for extending the supply of reserved power during a line power interruption | Electricity | 24 | Expired |
| US6031299A | Apparatus and method of providing EMI filtering | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6160591A | Apparatus and method of providing switching frequency synchronization | Electricity | 13 | Expired |
| US4875409A | Magnetic print hammer actuator protection circuit | Physics | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.