Learn more

MACKAY RADIO & TELEGRAPH CO

Overview
  • Total Patents
    52
About

MACKAY RADIO & TELEGRAPH CO has a total of 52 patent applications. Its first patent ever was published in 1935. It filed its patents most often in United States, France and United Kingdom. Its main competitors in its focus markets telecommunications, digital networks and basic communication technologies are NITERO PTY LTD, MACKAY RADIO & TELEGRAPH COMPA and CHANNEL MASTER LLC.

Patent filings in countries

World map showing MACKAY RADIO & TELEGRAPH COs patent filings in countries
# Country Total Patents
#1 United States 49
#2 France 2
#3 United Kingdom 1

Patent filings per year

Chart showing MACKAY RADIO & TELEGRAPH COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Andrew Alford 28
#2 Taylor Royden George 5
#3 William Butterworth John 3
#4 Litton Charles V 3
#5 Schabauer Fritz M 2
#6 Hugo Abelew Harry 2
#7 Buff Christopher 1
#8 Royden George Taylor 1
#9 Royden George T 1
#10 Abelew Harry H 1

Latest patents

Publication Filing date Title
US2954431A Automatic telegraph message numbering apparatus
US2931981A Variable pulse delay apparatus
US2938171A Stabilized low frequency wave generating circuit
US2932730A Narrow to wide band converter
US2944110A Error suppressing telegraph system
US2855506A Automatic frequency control circuit for frequency shift radio telegraphy
US2850095A Apparatus and method for making serial number tape
US2829200A Half-duplex telegraph repeater
US2956151A Radio receiver with means to detect signals below noise level
US2877423A Amplifier distortion correction system
US2878451A Piezolelectric resonator
US2869116A Automatic keyer for lifeboat radio equipment
US2678390A Electronic timing relay
US2680197A Crystal controlled oscillator
US2650266A Dual channel telegraph system
US2520188A Diversity reception employing frequency shift keying
US2405174A Transmission control network
US2335723A Phase shifter
US2344884A Wave transmission system
US2327485A Broad band antenna