Patents by Inventor Wang Y. Hsia

Wang Y. Hsia 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).

  • Retractable device for a desk lamp
    Patent number: 5101332
    Abstract: This invention relates to a retractable device for a desk lamp and in particular to one which including a tubular cylindrical casing having an end for connecting with an appropriate position of the desk lamp, a piston rod provided with an outer end for connecting with an appropriate position of the desk lamp and extending into the cylindrical casing, an annular ring fixedly mounted within the cylindrical casing for receiving a first rubber ring, a cap engaged with the other end of the tubular cylindrical casing, a plug mounted at the other end of the tubular cylindrical casing, and a second rubber ring disposed between the cap and the plug.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: March 31, 1992
    Inventor: Wang Y. Hsia
  • Desk lamp
    Patent number: D326535
    Type: Grant
    Filed: September 5, 1990
    Date of Patent: May 26, 1992
    Assignee: Fantasy Int. Corp.
    Inventor: Wang Y. Hsia
  • Adjustable desk lamp
    Patent number: D329918
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: September 29, 1992
    Inventor: Wang Y. Hsia