TREA

Roger D. Bradshaw

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  • Allen, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dispersant compositions comprising sulfonated isobutylene maleic an...
    • Patent number 5,360,787
    • Issue date Nov 1, 1994
    • Atlantic Richfield Company
    • James B. Bloys
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Dispersant compositions for subterranean well drilling and completion
    • Patent number 5,292,367
    • Issue date Mar 8, 1994
    • Atlantic Richfield Company
    • James B. Bloys
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Well conduit sealant and placement method
    • Patent number 5,117,909
    • Issue date Jun 2, 1992
    • Atlantic Richfield Company
    • Bonsall S. Wilton
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Spacer fluids
    • Patent number 5,113,943
    • Issue date May 19, 1992
    • Atlantic Richfield Company
    • William N. Wilson
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Cementing oil and gas wells
    • Patent number 5,076,852
    • Issue date Dec 31, 1991
    • Atlantic Richfield Company
    • James B. Bloys
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Cementing oil and gas wells
    • Patent number 5,038,863
    • Issue date Aug 13, 1991
    • Altantic Richfield Company
    • James B. Bloys
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Spacer fluids
    • Patent number 5,030,366
    • Issue date Jul 9, 1991
    • Atlantic Richfield Company
    • William N. Wilson
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES