TREA

Helmut Weichart

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  • Hanover, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Marine seismic streamer with a device for damping oscillations
    • Patent number 5,404,340
    • Issue date Apr 4, 1995
    • Prakla-Seismos G.m.b.H
    • Helmut Weichart
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Hydrophone
    • Patent number 5,394,379
    • Issue date Feb 28, 1995
    • Prakla-Seismos G.m.b.H
    • Helmut Weichart
    • B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • Information Patent Grant

    Cable for sea seismic exploration
    • Patent number 4,204,188
    • Issue date May 20, 1980
    • Prakla-Seismos GmbH
    • Helmut Weichart
    • G01 - MEASURING TESTING