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Dennis J. Malfer

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  • Crestwood, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fuel compositions
    • Patent number 5,697,988
    • Issue date Dec 16, 1997
    • Ethyl Corporation
    • Dennis J. Malfer
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Succinimides
    • Patent number 5,411,559
    • Issue date May 2, 1995
    • Ethyl Corporation
    • Dennis J. Malfer
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Succinimides
    • Patent number 5,312,555
    • Issue date May 17, 1994
    • Ethyl Petroleum Additives, Inc.
    • Dennis J. Malfer
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Succinimides
    • Patent number 5,122,616
    • Issue date Jun 16, 1992
    • Ethyl Petroleum Additives, Inc.
    • Dennis J. Malfer
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Hexahydropyrimidine derivatives
    • Patent number 5,106,975
    • Issue date Apr 21, 1992
    • Ethyl Petroleum Additives, Inc.
    • Dennis J. Malfer
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Spent acid purification process
    • Patent number 5,030,436
    • Issue date Jul 9, 1991
    • Ethyl Corporation
    • J. Francis Steadman
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Fuel compositions
    • Patent number 4,997,456
    • Issue date Mar 5, 1991
    • Ethyl Petroleum Additives, Inc.
    • Dennis J. Malfer
    • C07 - ORGANIC CHEMISTRY