Patents by Inventor Hsien-Jung Hwang

Hsien-Jung Hwang 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).

  • Patent number: 5838639
    Abstract: The present invention relates to a watch having laser pointer of the type which comprises a housing, a modulating core, a laser diode module, and a power supply. The housing is provided with a clear cover and a display is disposed thereunder. A modulating core is disposed under the display. The power supply is disposed under the modulating core and the diode modulate is disposed in the peripheral of the housing. The laser diode module is provided with a button switch which is used to switch on/off the laser diode module. The emitted laser beam is further intensified by a convex lens and this intensified beam is directed through a aperture of the housing. This intensified light beam can be used to mark the graphic or character on the screen for clear demonstration. On the other hand, the water may still be used as a timing tool.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: November 17, 1998
    Inventor: Hsien-Jung Hwang