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PLESSEY SOUTH AFRICA

Overview
  • Total Patents
    20
About

PLESSEY SOUTH AFRICA has a total of 20 patent applications. Its first patent ever was published in 1982. It filed its patents most often in United States, South Africa and EPO (European Patent Office). Its main competitors in its focus markets basic communication technologies, machines and measurement are LITTON CONSULTING GROUP INC, NANOWAVE TECH INC and PLATH NAUT ELEKTRON TECH.

Patent filings in countries

World map showing PLESSEY SOUTH AFRICAs patent filings in countries

Patent filings per year

Chart showing PLESSEY SOUTH AFRICAs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Schreuder Jan 7
#2 Marsden Mark 6
#3 Mark Marsden 4
#4 Braun Robin Michael 4
#5 Braun Robin M 2
#6 Mark David Chewins 1
#7 Murphy Raymond James 1
#8 Downing Barry John 1
#9 Hill Trevor R 1
#10 Chewins Mark D 1

Latest patents

Publication Filing date Title
US5159149A Electronic device
ZW16490A1 System for the supply of a reticulated utility
US5214236A Timing of a multi-shot blast
ZA8906936B Timing of a multi-shot blast
ZA8905639B Electronic primer
US5038682A Electronic device
ZA8905638B Electronic primer
ZA8504999B Frequency stabilized rf oscillator,rf source assembly,and method of generating rf energy
US4631497A Injection locked RF oscillator with control hoop
US4634999A RF oscillator frequency stabilizing circuit using self-mixing with reference frequency
ZA8503857B Injection locked rf oscillator,and method of generating rf energy
ZA8503858B Rf oscillator and method of generating rf energy
US4646092A Method of and apparatus for continuous wave electromagnetic distance measurement of positioning
US4577150A Phase measuring method and apparatus
ZA8303671B Phase measuring method and apparatus
EP0060654A1 Improvements in or relating to electronic distance measuring instruments