TREA

Chi Cheng

Follow

Person

  • Clarendon Hills, IL, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Integrated window/light shelf system
    • Patent number 6,134,842
    • Issue date Oct 24, 2000
    • Chi Cheng
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Ball bearing piston and liner
    • Patent number 5,893,318
    • Issue date Apr 13, 1999
    • Chi Cheng
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Roller bearing piston
    • Patent number 5,615,600
    • Issue date Apr 1, 1997
    • Chi Cheng
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ball bearing piston
    • Patent number 5,437,220
    • Issue date Aug 1, 1995
    • Chi Cheng
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...