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David Andrewes

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  • Farnham, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ballast water monitoring device
    • Patent number 10,481,064
    • Issue date Nov 19, 2019
    • CHELSEA TECHNOLOGIES GROUP LTD
    • Kevin Oxborough
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
  • Information Patent Grant

    Device and apparatus for conducting an assay
    • Patent number 6,300,142
    • Issue date Oct 9, 2001
    • Provalis Diagnostics LTD
    • David Andrewes
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Spectrophotometer
    • Patent number D447713
    • Issue date Sep 11, 2001
    • Provalis Diagnostics Limited
    • Anthony Stevenson
    • D10 - Measuring, testing, or signalling instruments
  • Information Patent Grant

    Sample holder for spectrophotometer
    • Patent number D443539
    • Issue date Jun 12, 2001
    • Provalis Diagnostics Limited
    • Anthony Stevenson
    • D10 - Measuring, testing, or signalling instruments

Patents Applicationslast 30 patents

  • Information Patent Application

    BALLAST WATER MONITORING DEVICE
    • Publication number 20190033193
    • Publication date Jan 31, 2019
    • CHELSEA TECHNOLOGIES GROUP LTD
    • Kevin OXBOROUGH
    • G01 - MEASURING TESTING