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John H. Holmquest

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  • Watertown, SD, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Multi-layer laminate structure
    • Patent number 5,679,432
    • Issue date Oct 21, 1997
    • Benchmark Foam, Inc.
    • John H. Holmquest
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Expanded polystyrene lightweight fill
    • Patent number 5,549,418
    • Issue date Aug 27, 1996
    • Benchmark Foam, Inc.
    • John P. Devine
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING