TREA

Hans Langenberg

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  • Hamburg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Propeller drive for watercraft
    • Patent number 5,795,199
    • Issue date Aug 18, 1998
    • Blohm + Voss Holding AG
    • Hans Langenberg
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
  • Information Patent Grant

    Water craft with guide fins
    • Patent number 5,141,456
    • Issue date Aug 25, 1992
    • Blohm + Voss AG
    • Hans Langenberg
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
  • Information Patent Grant

    Water craft with guide fins
    • Patent number 4,959,032
    • Issue date Sep 25, 1990
    • Blohm + Voss AG
    • Hans Langenberg
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT