TREA

Jen-Chih Chang

Follow

Person

  • Wurih Township, TW
People

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    FOAM GENERATING APPARATUS
    • Publication number 20110193245
    • Publication date Aug 11, 2011
    • MEI THUNG CO., LTD.
    • Jen-Chih Chang
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Connection device for quickly connecting pneumatic hose
    • Publication number 20090050836
    • Publication date Feb 26, 2009
    • Jen-Chih Chang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Rotor structure of pneumatic tool
    • Publication number 20070042690
    • Publication date Feb 22, 2007
    • Jen-Chih Chang
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Filter device used in a paint cup of a spraying gun
    • Publication number 20060049099
    • Publication date Mar 9, 2006
    • Jen Chih Chang
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Pump-used filter device
    • Publication number 20050220635
    • Publication date Oct 6, 2005
    • Jen-Chih Chang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...