Patents by Inventor Liet Nguyen

Liet Nguyen 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).

  • Publication number: 20070003905
    Abstract: A tooth whitening apparatus and method using an intra-oral light generating device, whereas the light generating device is placed inside a patient's mouth and bucally to the jaws to produce a light source, comprises the steps of applying inside a means for depositing and applying, adapted for the upper and lower jaws, a tooth whitening agent comprising an optical chemical agent. Said means for depositing and applying are made of suitable material comprising plastic, and adapted inside the patient's mouth and adjacent to the inner surface of the patient's lips.
    Type: Application
    Filed: July 1, 2005
    Publication date: January 4, 2007
    Inventors: Bao Nguyen, Liet Nguyen
  • Publication number: 20060127837
    Abstract: An embodiment of the present invention is a technique for dental bleaching. A tray covers teeth of a user and has a reservoir. A conductor is placed inside the tray. The conductor is covered by a bleaching agent when the bleaching agent fills the reservoir. The conductor is electrically connected to a negative terminal of a power source to cause regeneration of free radicals decomposed from the bleaching agent when power is applied.
    Type: Application
    Filed: December 12, 2005
    Publication date: June 15, 2006
    Inventors: Bao Nguyen, Liet Nguyen