TREA

Plessey Handel und Investments A.G.

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  • Beeston, EN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Radar systems
    • Patent number 4,375,640
    • Issue date Mar 1, 1983
    • Plessey Handel Und Investments AG
    • Denis H. Harvey
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Sealing optical fibres into packages
    • Patent number 4,357,072
    • Issue date Nov 2, 1982
    • Plessey Handel und Investments AG
    • Robert C. Goodfellow
    • G02 - OPTICS
  • Information Patent Grant

    Duplex transceiver arrangements for rebroadcast of signals
    • Patent number 4,353,127
    • Issue date Oct 5, 1982
    • Plessey Handel und Investments AG
    • Christopher K. Richardson
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Transmitter/receivers capable of contemporaneous transmission/recep...
    • Patent number 4,349,919
    • Issue date Sep 14, 1982
    • Plessey Handel und Investments AG
    • Christopher K. Richardson
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Transceivers
    • Patent number 4,348,757
    • Issue date Sep 7, 1982
    • Plessey Handel und Investments AG
    • Christopher K. Richardson
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Low pressure fuel injection system
    • Patent number 4,345,717
    • Issue date Aug 24, 1982
    • Plessey Handel und Investments AG
    • Michael W. Clark
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Phase locked loop frequency synthesizer with fine tuning
    • Patent number 4,344,045
    • Issue date Aug 10, 1982
    • Plessey Handel und Investments AG
    • Tapan K. Das
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Volume control mechanism for a bell assembly
    • Patent number 4,337,461
    • Issue date Jun 29, 1982
    • Plessey Handel und Investments AG
    • John A. Carrier
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Cover assemblies for electrical apparatus
    • Patent number 4,336,417
    • Issue date Jun 22, 1982
    • Plessey Handel und Investments AG
    • David J. Hickling
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Optical fibre connectors
    • Patent number 4,323,300
    • Issue date Apr 6, 1982
    • Plessey Handel und Investments AG
    • William J. Stewart
    • G02 - OPTICS
  • Information Patent Grant

    Directional arrays
    • Patent number 4,318,104
    • Issue date Mar 2, 1982
    • Plessey Handel und Investments AG
    • Mohamed H. Enein
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Pyroelectric detectors
    • Patent number 4,317,063
    • Issue date Feb 23, 1982
    • Plessey Handel und Investments AG
    • David J. Pedder
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Coupling arrangements
    • Patent number 4,313,626
    • Issue date Feb 2, 1982
    • Plessey Handel und Investments AG
    • William C. W. Duncan
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Optical fibre switches
    • Patent number 4,312,561
    • Issue date Jan 26, 1982
    • Plessey Handel und Investments AG
    • John F. Mead
    • G02 - OPTICS
  • Information Patent Grant

    Sonar systems
    • Patent number 4,313,184
    • Issue date Jan 26, 1982
    • Plessey Handel und Investments AG
    • Leonard B. Jarman
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Connectors for sealed containers
    • Patent number 4,312,563
    • Issue date Jan 26, 1982
    • Plessey Handel und Investments AG
    • John F. Mead
    • G02 - OPTICS
  • Information Patent Grant

    Fuel injector
    • Patent number 4,307,838
    • Issue date Dec 29, 1981
    • Plessey Handel und Investments AG
    • Barrie J. Martin
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Receiver arrangement
    • Patent number 4,307,422
    • Issue date Dec 22, 1981
    • Plessey Handel und Investments AG
    • Tapan K. Das
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Microwave landing systems
    • Patent number 4,306,238
    • Issue date Dec 15, 1981
    • Plessey Handel und Investments AG
    • Mohamed H. Enein
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Microwave landing systems
    • Patent number 4,306,239
    • Issue date Dec 15, 1981
    • Plessey Handel und Investments AG
    • Mohamed H. Enein
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Optical fibre connectors
    • Patent number 4,304,461
    • Issue date Dec 8, 1981
    • Plessey Handel und Investments AG
    • William J. Stewart
    • G02 - OPTICS
  • Information Patent Grant

    Radar systems
    • Patent number 4,303,920
    • Issue date Dec 1, 1981
    • Plessey Handel und Investments AG
    • Alan K. Mortimer
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Hydrodynamic devices
    • Patent number 4,300,466
    • Issue date Nov 17, 1981
    • Plessey Handel und Investments AG
    • Trevor I. Silvey
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
  • Information Patent Grant

    Communications systems
    • Patent number 4,300,235
    • Issue date Nov 10, 1981
    • Plessey Handel und Investments AG
    • John D. Outram
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Transistorized invertor
    • Patent number 4,298,925
    • Issue date Nov 3, 1981
    • Plessey Handel und Investments AG
    • John R. Melling
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Optical fibre connectors
    • Patent number 4,296,999
    • Issue date Oct 27, 1981
    • Plessey Handel und Investments AG
    • John F. Mead
    • G02 - OPTICS
  • Information Patent Grant

    Electrolyte capacitors with improved anode-to-lead connection
    • Patent number 4,296,458
    • Issue date Oct 20, 1981
    • Plessey Handel und Investments AG
    • Leslie Smith
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Radial flow centrifugal impeller
    • Patent number 4,285,631
    • Issue date Aug 25, 1981
    • Plessey Handel und Investments AG
    • Peter J. Taylor
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pyroelectric detectors
    • Patent number 4,284,888
    • Issue date Aug 18, 1981
    • Plessey Handel und Investments AG
    • David Appleby
    • G08 - SIGNALLING
  • Information Patent Grant

    Feedback biasing circuit arrangement for transistor amplifier
    • Patent number 4,283,641
    • Issue date Aug 11, 1981
    • Plessey Handel und Investments AG
    • John A. Skingley
    • G05 - CONTROLLING REGULATING