TREA

Gerald E. Tollefsen

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  • Calumet City, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Needle coke process and product
    • Patent number 4,466,883
    • Issue date Aug 21, 1984
    • Atlantic Richfield Company
    • Daniel B. Eickemeyer
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    White oil process
    • Patent number 4,263,127
    • Issue date Apr 21, 1981
    • Atlantic Richfield Company
    • Maurice K. Rausch
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    White mineral oil made by two stage hydrogenation
    • Patent number 4,251,347
    • Issue date Feb 17, 1981
    • Atlantic Richfield Company
    • Maurice K. Rausch
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL