Patents by Inventor Wu-Hsiung Wu

Wu-Hsiung Wu 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).

  • Ash tray
    Patent number: 5361785
    Abstract: A domed casing includes a flat base and a rounded roof portion provided on the flat base to define an internal space in the domed casing. The rounded roof portion has a tapered through-hole formed therethrough in which a spiral coil is engaged. The spiral coil has a first end engaged in the tapered through-hole and a second end which extends into the internal space of the casing. The second end of the spiral coil is coiled more compactly than the first end.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: November 8, 1994
    Inventor: Wu-Hsiung Wu