Patents by Inventor James F. Chang

James F. 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).

  • Couples chair
    Patent number: 4099773
    Abstract: An article of furniture that includes a curved lower outer surface so that the article of furniture or chair can be rocked back and forth, the chair including stop members for limiting rocking motion or movement of the chair, and wherein reinforced portions are provided for supporting occupants of the chair so that the occupants will not sink down too far in the chair.
    Type: Grant
    Filed: May 31, 1977
    Date of Patent: July 11, 1978
    Inventor: James F. Chang