TREA

Tony Wei-Sin Chang

Follow

Person

  • San Jose, CA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Foldable chair with reclining back
    • Patent number 6,779,838
    • Issue date Aug 24, 2004
    • Tony Wei-Sin Chang
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Foldable chair with reclining back
    • Patent number 6,733,070
    • Issue date May 11, 2004
    • TWSC Corp.
    • Tony Wei-Sin Chang
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Swivel mechanism for foldable furniture
    • Patent number 6,536,732
    • Issue date Mar 25, 2003
    • Tony Wei-Sin Chang
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Collapsible glider chair
    • Patent number 5,971,474
    • Issue date Oct 26, 1999
    • Variety Electronic Inc.
    • Tony Wei-Sin Chang
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Foldable chair with a cup holder
    • Patent number 5,893,605
    • Issue date Apr 13, 1999
    • Variety Electronics Inc.
    • Tony Wei-Sin Chang
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Portable folding chair
    • Patent number 5,730,488
    • Issue date Mar 24, 1998
    • Variety International, Inc.
    • Tony Wei-Sin Chang
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents