TREA

Robert D. MacDonald

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  • Grand Blanc, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Handle valve assembly
    • Patent number 4,699,172
    • Issue date Oct 13, 1987
    • Masco Corporation
    • Robert D. MacDonald
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Thermostatic valve assembly
    • Patent number 4,640,457
    • Issue date Feb 3, 1987
    • Masco Corporation
    • Robert D. MacDonald
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Valve
    • Patent number 4,609,177
    • Issue date Sep 2, 1986
    • Brasscraft Manufacturing Company
    • Larry G. Turner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Valve
    • Patent number 4,562,994
    • Issue date Jan 7, 1986
    • Brass-Craft Manufacturing Company
    • Robert D. MacDonald
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Thermostatic valve assembly
    • Patent number 4,458,839
    • Issue date Jul 10, 1984
    • Masco Corporation
    • Robert D. MacDonald
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Valve assembly
    • Patent number 4,453,567
    • Issue date Jun 12, 1984
    • Masco Corporation
    • Robert D. MacDonald
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Faucet
    • Patent number 4,429,712
    • Issue date Feb 7, 1984
    • Masco Corporation
    • Robert D. MacDonald
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Submersible sump pump
    • Patent number 4,396,353
    • Issue date Aug 2, 1983
    • Flint & Walling, Inc.
    • Robert D. MacDonald
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Self-closing hinge
    • Patent number 4,287,641
    • Issue date Sep 8, 1981
    • Masco Corporation
    • Robert D. MacDonald
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Method for bonding a heat exchanger fin to a tube
    • Patent number 4,192,052
    • Issue date Mar 11, 1980
    • E. I. Du Pont de Nemours and Company
    • Robert D. MacDonald
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Internally finned tube
    • Patent number 4,163,474
    • Issue date Aug 7, 1979
    • E. I. Du Pont de Nemours and Company
    • Robert D. MacDonald
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Door closing apparatus
    • Patent number 4,103,392
    • Issue date Aug 1, 1978
    • Masco Corporation
    • Robert D. MacDonald
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Annular heat exchanger fins
    • Patent number 4,005,748
    • Issue date Feb 1, 1977
    • Champion Home Builders Co.
    • Robert D. MacDonald
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...