William J. Kerwin
5Patents
4h-index
6Co-inventors
50Inventor score
Filing activity: Jul 24, 1974 → Feb 23, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4424491A | Automatic voltage imbalance detector | Emerging Cross-Sectional Technologies | 203 | Expired |
| US4232698A | Pressure relief valve with pressure indicating means | Emerging Cross-Sectional Technologies | 16 | Expired |
| US3978364A | Integrated structure vacuum tube | Electricity | 11 | Expired |
| US4138622A | High temperature electronic gain device | Electricity | 7 | Expired |
| US6343027B1 | Transformerless high voltage inverter using a fourth-order impedance network | Electricity | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.