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Dennis A. Ray

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  • Crookston, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Diesel fuel heater
    • Patent number 4,979,483
    • Issue date Dec 25, 1990
    • Diesel Research and Development Co.
    • Dennis A. Ray
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Diesel fuel heater
    • Patent number 4,971,018
    • Issue date Nov 20, 1990
    • Diesel Research and Development Co.
    • Dennis A. Ray
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Fuel heater
    • Patent number 4,846,137
    • Issue date Jul 11, 1989
    • Dennis A. Ray
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Spiral distributor fuel heater
    • Patent number 4,829,969
    • Issue date May 16, 1989
    • Energy Research and Marketing Corporation
    • Dennis A. Ray
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Fuel heater thermostat
    • Patent number 4,827,889
    • Issue date May 9, 1989
    • Diesel Research and Development Co.
    • Dennis A. Ray
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Fuel treating apparatus for engines
    • Patent number 4,367,717
    • Issue date Jan 11, 1983
    • Northwest Investments
    • Dennis A. Ray
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Carburetor attachment
    • Patent number 4,300,513
    • Issue date Nov 17, 1981
    • Dennis A. Ray
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS