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Hepworth & Grandage Limited

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Patents Grantslast 30 patents

  • Information Patent Grant

    Oil ring design
    • Patent number 4,053,165
    • Issue date Oct 11, 1977
    • Hepworth & Grandage Limited
    • Edward Douglas Hartley
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Production of a form of alumina whiskers
    • Patent number 3,947,562
    • Issue date Mar 30, 1976
    • Hepworth & Grandage Limited
    • Rex William Grimshaw
    • C30 - CRYSTAL GROWTH

Trademarklast 30 trademarks

  • Information Trademark

    73277403 - HG
    • Serial number 73277403
    • Registration number 1220556
    • Filing date Sep 11, 1980
    • Hepworth & Grandage Limited
    • 6 - Common metals and their alloys
  • Information Trademark

    71343653 - HEPOLITE
    • Serial number 71343653
    • Registration number 311585
    • Filing date Nov 14, 1933
    • HEPWORTH & GRANDAGE LIMITED
    • 7 - Machines and machine tools