TREA

William E. Showalter

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  • Seal Beach, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Geopreater heating method and apparatus
    • Patent number 5,126,037
    • Issue date Jun 30, 1992
    • Union Oil Company of California
    • William E. Showalter
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Oil recovery method and apparatus
    • Patent number 5,040,605
    • Issue date Aug 20, 1991
    • Union Oil Company of California
    • William E. Showalter
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Steam injection piping
    • Patent number 5,025,862
    • Issue date Jun 25, 1991
    • Union Oil Company of California
    • William E. Showalter
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Oil tracing method
    • Patent number 4,755,469
    • Issue date Jul 5, 1988
    • Union Oil Company of California
    • William E. Showalter
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Solution mining process
    • Patent number 4,586,752
    • Issue date May 6, 1986
    • Union Oil Company of California
    • William E. Showalter
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Solution mining process
    • Patent number 4,358,157
    • Issue date Nov 9, 1982
    • Union Oil Company of California
    • William E. Showalter
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Solution mining process
    • Patent number 4,358,158
    • Issue date Nov 9, 1982
    • Union Oil Company of California
    • William E. Showalter
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Process for recovery of mineral values from underground formations
    • Patent number 4,105,253
    • Issue date Aug 8, 1978
    • Union Oil Company of California
    • William E. Showalter
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...