TREA

Yung Chung Liao

Follow

Person

  • Taichung, TW
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Bidirectional hub assembly
    • Patent number 9,669,657
    • Issue date Jun 6, 2017
    • Kun Teng Industry Co., Ltd.
    • Hubert Chen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Ratchet driving tool
    • Patent number 6,450,067
    • Issue date Sep 17, 2002
    • Yung Chung Liao
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Ratchet driving tool
    • Patent number 6,349,619
    • Issue date Feb 26, 2002
    • Yung Chung Liao
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    High-speed rotary machine
    • Patent number 6,334,743
    • Issue date Jan 1, 2002
    • Yung-Chuan Liao
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Ratchet screwdriver
    • Patent number 6,047,801
    • Issue date Apr 11, 2000
    • Yung-Chuan Liao
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Semi-automatic pistolled screwdriver with thorny rings
    • Patent number 5,893,305
    • Issue date Apr 13, 1999
    • Yung-chuan Liao
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents