Inventor
MACPHERSON WILLIAM F
8 patents
⚠️ This page may combine multiple inventors who share the name “MACPHERSON WILLIAM F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BELL TELEPHONE LABOR INC
6 patentsUS4408248AOct 4, 1983
Protection circuit
BELL TELEPHONE LABOR INC37 citations86
US4309715AJan 5, 1982
Integral turn-on high voltage switch
BELL TELEPHONE LABOR INC7 citations73
US4250409AFeb 10, 1981
Control circuitry using a pull-down transistor for high voltage field terminated diode solid-state switches
BELL TELEPHONE LABOR INC7 citations73
US4345163AAug 17, 1982
Control circuitry for high voltage solid-state switches
BELL TELEPHONE LABOR INC9 citations72
US4166931ASep 4, 1979
Miniature bridge lifter for telephone lines
BELL TELEPHONE LABOR INC3 citations53
US4447744AMay 8, 1984
Control circuitry for high voltage solid-state switches
BELL TELEPHONE LABOR INC0 citations41