TREA

Edwin C. Lewis II

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Closure for openings in pumps
    • Patent number 4,516,477
    • Issue date May 14, 1985
    • Edwin C. Lewis
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    High pressure piston and seal
    • Patent number 4,270,440
    • Issue date Jun 2, 1981
    • Weatherford/DMC
    • Edwin C. Lewis
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...