TREA

Robert M. Kulfan

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  • Kirkland, WA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Double parasol, favorable interference airplane
    • Patent number 4,598,886
    • Issue date Jul 8, 1986
    • The Boeing Company
    • Gottfried O. Friebel
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Airplane
    • Patent number D263135
    • Issue date Feb 23, 1982
    • The Boeing Company
    • Gottfried O. Friebel
    • D12 - Transportation