TREA

Martin J. Uram

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  • Pittsburgh, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pneumatic excavator
    • Patent number 6,158,152
    • Issue date Dec 12, 2000
    • Concept Engineering Group, Inc.
    • Richard D. Nathenson
    • B08 - CLEANING
  • Information Patent Grant

    Pneumatic excavator
    • Patent number 5,966,847
    • Issue date Oct 19, 1999
    • Concept Engineering Group, Inc.
    • Richard D. Nathenson
    • B08 - CLEANING
  • Information Patent Grant

    Apparatus for pneumatic excavation
    • Patent number 5,487,229
    • Issue date Jan 30, 1996
    • Electric Power Research Institute, Inc.
    • Richard D. Nathenson
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING