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PLESSEY TELECOMMUNICATIONS RES

Overview
  • Total Patents
    17
About

PLESSEY TELECOMMUNICATIONS RES has a total of 17 patent applications. Its first patent ever was published in 1969. It filed its patents most often in United Kingdom and United States. Its main competitors in its focus markets digital networks, telecommunications and measurement are POSTAL TELEGRAPH CABLE CO, SCHWARZ HENRY and GEORGE CREED FREDERICK.

Patent filings in countries

World map showing PLESSEY TELECOMMUNICATIONS RESs patent filings in countries
# Country Total Patents
#1 United Kingdom 12
#2 United States 5

Patent filings per year

Chart showing PLESSEY TELECOMMUNICATIONS RESs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Davis John Christopher Hammond 2
#2 Clark A 2
#3 Kent Alan Hugh 1
#4 Clark Adrian Percy 1

Latest patents

Publication Filing date Title
US3789149A Code division multiplex system
GB1345188A Data processing input-output systems
GB1388833A Telecommunication line transmission power-feed protection arrangements
GB1388553A Supervisory systems for telecommunication line transmission system
GB1348778A Data switching exchanges
US3667301A Control of gyroscope spin-up devices
US3677098A Gyroscope uncaging device
GB1342904A Multifrequency data receivers
US3720789A Electrical signalling systems using correlation detectors
GB1317260A Apparatus for providing a control signal indicative of any deviation of the speed of movement of a moving object from a desired speed
GB1309557A Electrical signalling systems
GB1314180A Electrical data transmission systems
GB1309754A Electrical signalling systems
GB1320911A Electrical signalling systems
GB1310509A Multiplex electrical signalling systems