Tzann-Ywh Tzeng

Person

  • Keelung, TW

Patents Grantslast 30 patents

  • Information Patent Grant

    Foot balancing device

    • Patent number 9,913,508
    • Issue date Mar 13, 2018
    • Varithotics Co., Ltd.
    • Tzann-Yuh Tzeng
    • A43 - FOOTWEAR
  • Information Patent Grant

    Body balance device

    • Patent number 9,055,781
    • Issue date Jun 16, 2015
    • Varithotics Co., Ltd.
    • Tzann-Yuh Tzeng
    • A43 - FOOTWEAR
  • Information Patent Grant

    Pressure-reducing device

    • Patent number 8,484,864
    • Issue date Jul 16, 2013
    • Tzann-Yuh Tzeng
    • A43 - FOOTWEAR

Patents Applicationslast 30 patents