Patents by Inventor Chao-Lee Chang

Chao-Lee Chang 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).

  • Apparatus for making furniture
    Patent number: 5294468
    Abstract: An apparatus includes an elongated flexible tube with an oblong cross section. The tube has two opposed long sides and an elongated partition wall extends parallel with the opposed long sides. The elongated partition wall defines a slot within the same, into which an iron pipe of elliptical shape in cross section is inserted.
    Type: Grant
    Filed: January 13, 1992
    Date of Patent: March 15, 1994
    Assignee: Taiwan Shin Yeh Enterprise Co., Ltd.
    Inventor: Chao-Lee Chang