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JOHN DOUGLAS COCKCROFT

Overview
  • Total Patents
    20
About

JOHN DOUGLAS COCKCROFT has a total of 20 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United Kingdom. Its main competitors in its focus markets measurement and electrical machinery and energy are SUBMARINE SIGNAL CORP, RAYMARINE UK LTD and AKTSIONERNOE OBSHCHESTVO KONTSERN OKEANPRIBOR.

Patent filings in countries

World map showing JOHN DOUGLAS COCKCROFTs patent filings in countries
# Country Total Patents
#1 United Kingdom 20

Patent filings per year

Chart showing JOHN DOUGLAS COCKCROFTs patent filings per year from 1900 to 2020

Focus industries

Latest patents

Publication Filing date Title
GB581989A Improvements in or relating to radio location systems
GB590593A Improvements in or relating to radio locating apparatus
GB589958A Improvements in or relating to radio transmission and reception
GB582419A Improvements in or relating to radio-location apparatus
GB598702A Improvements in or relating to phase-varying networks
GB598649A Improvements in or relating to radio-locating apparatus
GB598701A Improvements in or relating to the measurement of time intervals
GB581998A Improvements in or relating to radio aerial systems
GB581999A Improvements in or relating to pulse radar installations
GB581980A Improvements in or relating to searchlight control installations
GB581996A Improvements in or relating to radio apparatus for receiving pulsed signals
GB582493A Improvements in or relating to radio installations for locating distant bodies
GB582521A Improvements in or relating to radio installations for locating distant bodies
GB583792A Improvements in or relating to the measurement of short intervals of time
GB582170A Improvements in the operation and control of cathode ray indicators
GB582325A Improvements in or relating to radio apparatus for locating distant bodies
GB582169A Improvements in radio equipment for locating distant bodies
GB550922A Improvements in or relating to electric valve holders
GB395758A Improved system for the voltage transformation of direct current electrical energy
GB367785A Improvements in high voltage direct current systems