Inventor
WAABEN SIGURD G
8 patents
⚠️ This page may combine multiple inventors who share the name “WAABEN SIGURD G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BELL TELEPHONE LABOR INC
6 patentsUS4319144AMar 9, 1982
Single polarity circuit
BELL TELEPHONE LABOR INC42 citations88
US4190747AFeb 26, 1980
Signal corrected optocoupled device
BELL TELEPHONE LABOR INC23 citations80
US4228323AOct 14, 1980
Variable loop length compensated barrier circuit
BELL TELEPHONE LABOR INC16 citations72
US4137428AJan 30, 1979
Optically actuated bidirectional semiconductor switch
BELL TELEPHONE LABOR INC17 citations72
US4440985AApr 3, 1984
Apparatus for determining the location of faults in a transmission line
BELL TELEPHONE LABOR INC13 citations71
US4349776ASep 14, 1982
DC-to-DC Converters utilizing FET devices
BELL TELEPHONE LABOR INC11 citations71