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PLESSEY CO LTD

Overview
  • Total Patents
    3,879
About

PLESSEY CO LTD has a total of 3,879 patent applications. Its first patent ever was published in 1929. It filed its patents most often in United Kingdom, France and United States. Its main competitors in its focus markets electrical machinery and energy, machines and telecommunications are PLESSEY UK LTD, ITT and STANDARD ELEKTRIK LORENZ AG.

Patent filings per year

Chart showing PLESSEY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Moss Norman 57
#2 Costa Harry Da 36
#3 Trowbridge David Roy 34
#4 Baines Frederick 32
#5 Herbert John Martin 28
#6 Moore Norman Clement 21
#7 Kahn Peter Bruno 21
#8 Wood Robert Spurgeon 20
#9 Sharp Leonard William Descarri 17
#10 Chandler Walter 17

Latest patents

Publication Filing date Title
GB9011375D0 Airborne radar for speed measurement
GB2331371A9 Method for determining signal detection threshold in ESM communication system
GB9007927D0 Radio communication systems
GB9007877D0 Improvements relating to data transmission systems
GB9007455D0 Antireflective coatings
GB9007320D0 Optical fibre coupling device
GB9007329D0 Adjustable strap
GB9006426D0 A mobile telephone system
GB9005353D0 Improvements in true logarithmic amplifiers
GB9005364D0 Detector arrays
GB9005049D0 Radiation hardened power supplies for integrated circuits
GB9004638D0 Ferrite loaded coaxial structure
GB9003956D0 Defective sensor detection in sensor arrays
GB9003795D0 Optical duplexer
GB9002435D0 An optical interconnect assembly
GB9000319D0 Frequency hopping system for congested environments
GB8826004D0 Underwater acoustic sensor
GB8810569D0 Improvements in and relating to oscillators
GB8801329D0 Directional coupler
GB8801112D0 Miniature transmission lines for monolithic microwave integrated circuits