TREA

4Silence B.V.

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Organization

  • GE Oldenzaal, NE
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Diffractor for diffracting sound
    • Patent number 9,909,269
    • Issue date Mar 6, 2018
    • 4SILENCE B.V.
    • Ysbrand Hans Wijnant
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Road with sound diffractors
    • Patent number 8,696,233
    • Issue date Apr 15, 2014
    • 4Silence B.V.
    • Ysbrand Hans Wijnant
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

  • Information Patent Application

    DIFFRACTOR FOR DIFFRACTING SOUND
    • Publication number 20160362855
    • Publication date Dec 15, 2016
    • 4SILENCE B.V.
    • Ysbrand Hans Wijnant
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Trademarklast 30 trademarks

  • Information Trademark

    79301826 - 4SILENCE
    • Serial number 79301826
    • Registration number 6541708
    • Filing date Aug 12, 2020
    • 4Silence B.V.
    • 6 - Common metals and their alloys
  • Information Trademark

    79271858 - WHIS
    • Serial number 79271858
    • Registration number 6303233
    • Filing date Sep 6, 2019
    • 4Silence B.V.
    • 6 - Common metals and their alloys