Patents by Inventor Gregory Paul Mattsen

Gregory Paul Mattsen 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: 5938318
    Abstract: A novelty shadow projecting lamp is disclosed having at the center a light source contained in a protective enclosure. A portal or opening lets light escape in a predetermined direction, and is in visual communication with and surrounding a light source enveloped by a bi-phased liquid. The bi-phased liquid includes bits of meltable wax. A heat source located in the base portion of the lamp, is in thermal communication with the liquid. As the heating element melts the wax, which is suspended in the liquid, the wax melts and floats freely in the liquid, thereby passing through the light source and casting shadows onto walls and surrounding area.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: August 17, 1999
    Inventor: Gregory Paul Mattsen