William F. MacPherson
9Patents
5h-index
13Co-inventors
52Inventor score
Filing activity: Jan 12, 1976 → Mar 23, 1983
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4408248A | Protection circuit | Electricity | 28 | Expired |
| US4499532A | Floating battery feed circuit | Electricity | 13 | Expired |
| US4656366A | Control circuitry using two branch circuits for high voltage solid-state switches | Electricity | 13 | Expired |
| US4021617A | Telephone ringer isolator | Electricity | 12 | Expired |
| US4345163A | Control circuitry for high voltage solid-state switches | Electricity | 6 | Expired |
| US4309715A | Integral turn-on high voltage switch | Electricity | 5 | Expired |
| US4250409A | Control circuitry using a pull-down transistor for high voltage field terminated diode solid-state switches | Electricity | 5 | Expired |
| US4166931A | Miniature bridge lifter for telephone lines | Electricity | 3 | Expired |
| US4447744A | Control circuitry for high voltage solid-state switches | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.