TREA

Jan Krueger

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  • Stuttgart, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Controlled acoustic waveguide for soundproofing
    • Patent number 6,963,647
    • Issue date Nov 8, 2005
    • Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    • Jan Krueger
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Reactive sound absorber
    • Patent number 6,385,321
    • Issue date May 7, 2002
    • Fraunhofer-Gesellschaft
    • Jan Krueger
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS