TREA

David E. Hanke

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  • San Diego, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Infant seat liner
    • Patent number D313527
    • Issue date Jan 8, 1991
    • Weyerhaeuser Company
    • Lee E. Perdelwitz
    • D06 - Furnishings
  • Information Patent Grant

    Infant seat liner
    • Patent number D312549
    • Issue date Dec 4, 1990
    • Weyerhaeuser Company
    • Lee E. Perdelwitz
    • D06 - Furnishings
  • Information Patent Grant

    Method of making a limited life pad
    • Patent number 4,900,377
    • Issue date Feb 13, 1990
    • Weyerhaeuser Company
    • Douglas E. Redford
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Infant car seat liner
    • Patent number 4,891,454
    • Issue date Jan 2, 1990
    • Weyerhaeuser Company
    • Lee E. Perdelwitz
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Thermoplastic material containing absorbent pad or other article
    • Patent number 4,886,697
    • Issue date Dec 12, 1989
    • Weyerhaeuser Company
    • Lee E. Perdelwitz
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Infant car seat liner
    • Patent number 4,885,200
    • Issue date Dec 5, 1989
    • Weyerhaeuser Company
    • Lee E. Perdelwitz
    • B60 - VEHICLES IN GENERAL