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George C. Harrison

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  • Roseville, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for making light weight ceramic particles
    • Patent number 5,268,131
    • Issue date Dec 7, 1993
    • George C. Harrison
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Waste treatment
    • Patent number 4,872,993
    • Issue date Oct 10, 1989
    • George C. Harrison
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Biological filtration process
    • Patent number 4,676,907
    • Issue date Jun 30, 1987
    • George C. Harrison
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Fired clay pillows and structures made therewith
    • Patent number 4,110,499
    • Issue date Aug 29, 1978
    • Minnesota Mining and Manufacturing Company
    • George C. Harrison
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES