Inventor
DEVRIES ADRIAN J
US14 patents
⚠️ This page may combine multiple inventors who share the name “DEVRIES ADRIAN J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ZENITH RADIO CORP
9 patentsUS4460995AJul 17, 1984
Narrow focus compensating transducer for surface acoustic wave filter
ZENITH RADIO CORP7 citations73
US4375624AMar 1, 1983
Surface wave acoustic device with compensation for spurious frequency response modes
ZENITH RADIO CORP7 citations73
US4333065AJun 1, 1982
Low reflectivity apodized surface acoustic transducer with means to prevent wavefront distortion
ZENITH RADIO CORP13 citations73
US4065789ADec 27, 1977
Surface wave device for use in a ghost cancellation system
ZENITH RADIO CORP7 citations73
US4004254AJan 18, 1977
Swif with side lobe compensation barrier
ZENITH RADIO CORP18 citations73
US3988703AOct 26, 1976
Acoustic surface wave device having split-isolated or split-connected multistrip coupler
ZENITH RADIO CORP16 citations73
US3987379AOct 19, 1976
Acoustic surface wave filter having combined split-isolated and split-connected coupler
ZENITH RADIO CORP8 citations73
US4336515AJun 22, 1982
Acoustic filter with harmonic rejection
ZENITH RADIO CORP3 citations62
US4099146AJul 4, 1978
Acoustic wave storage convolver
ZENITH RADIO CORP3 citations62
INT TELESYSTEMS INC
4 patentsUS4903297AFeb 20, 1990
Restricted access television transmission system
INT TELESYSTEMS INC141 citations97
US5235640AAug 10, 1993
Master decoder for television signal scramble systems
INT TELESYSTEMS INC23 citations91
US4825467AApr 25, 1989
Restricted access television transmission system
INT TELESYSTEMS INC11 citations72
US5446795AAug 29, 1995
Universal decoder for television signal scramble systems
INT TELESYSTEMS INC4 citations61