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ROANWELL CORP

Overview
  • Total Patents
    32
About

ROANWELL CORP has a total of 32 patent applications. Its first patent ever was published in 1947. It filed its patents most often in United States and Canada. Its main competitors in its focus markets audio-visual technology, telecommunications and electrical machinery and energy are GN NETCOM INC, SANDER WENDELL B and PAVEL ANDREAS MAX.

Patent filings in countries

World map showing ROANWELL CORPs patent filings in countries
# Country Total Patents
#1 United States 22
#2 Canada 10

Patent filings per year

Chart showing ROANWELL CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Foley James P 9
#2 Marchand Gaston A 5
#3 George Cagen 3
#4 Powers Donald W 3
#5 Kloek Bernard F 3
#6 Poradowski Lech M 3
#7 Carbonaro Vito L 2
#8 D Agostino Michael 2
#9 Morrison Louis A 2
#10 Mol Hans C 1

Latest patents

Publication Filing date Title
US4463222A Noise canceling transmitter
US4454387A Handset hanger and switch
US4378467A Audio amplifier
US4288663A Noise canceling transmitter
US4273969A Communications headset mountable over the ear
CA1049135A Communications headset with rotatable and tiltable electrical connector
CA1074904A Communications headset with mounting means
US4009355A Reversible anti-noise microphone
US3971900A Communications headset with rotatable and tiltable electrical connector
US4008940A Telephone apparatus including electrical connector
US3971901A Communications headset with reversible mounting means
US3830988A Noise canceling transmitter
US3454912A Transducer drive rod
US3539735A Sintered transducer housing providing acoustical resistance and waterproofing
US3460080A Armature mounting assembly for an electroacoustic transducer
US3268784A Variable capacitor and electrical connector for use therewith
US3190974A Clamping means for an articlesupporting boom
US3128352A Clamping means for an articlesupporting boom
US3005061A Telephone handset hanger
US2924672A Headset