TREA

Xueqin Zha

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  • Boeblingen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Structured molded parts for sound absorption
    • Patent number 6,793,037
    • Issue date Sep 21, 2004
    • Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    • Gerhard Babuke
    • E04 - BUILDING
  • Information Patent Grant

    Anechoic room for the entire auditory range
    • Patent number 6,073,722
    • Issue date Jun 13, 2000
    • Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung e.V.
    • Gerhard Babuke
    • E04 - BUILDING
  • Information Patent Grant

    Plate resonator
    • Patent number 5,975,238
    • Issue date Nov 2, 1999
    • Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    • Helmut Fuchs
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS