TREA

David Allyn Hettinger

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  • New Bern, NC, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Self advancing mining sled
    • Patent number 6,267,191
    • Issue date Jul 31, 2001
    • David Allyn Hettinger
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Device to increase slurry density
    • Patent number 6,244,833
    • Issue date Jun 12, 2001
    • David Allyn Hettinger
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL