Patents by Inventor Edward Zheng

Edward Zheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Collapsible, portable cot
    Patent number: D411387
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: June 22, 1999
    Inventor: Edward Zheng
  • Collapsible chair
    Patent number: D432325
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: October 24, 2000
    Assignee: Tofasco of America, Inc.
    Inventors: Edward Zheng, Shi-Ping Zheng
  • Seat and back support for collapsible chair
    Patent number: D432823
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: October 31, 2000
    Assignee: Tofasco of America, Inc.
    Inventor: Edward Zheng
  • Folding frame for deck-chair
    Patent number: D433244
    Type: Grant
    Filed: January 3, 2000
    Date of Patent: November 7, 2000
    Inventor: Edward Zheng
  • Folding frame for lounge chair
    Patent number: D433574
    Type: Grant
    Filed: January 3, 2000
    Date of Patent: November 14, 2000
    Inventor: Edward Zheng