Patents by Inventor Richard Tuan Le

Richard Tuan Le 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).

  • Dental handpiece with removable apex finding electrode
    Patent number: 7476101
    Abstract: A dental handpiece is provided with a collar that moves along an outer surface of the handpiece. A contact is secured to the collar. The collar interfaces with an electrical circuit that extends within the dental handpiece. The contact is removable from the collar and the contact defines an electrical connection between a cutting tool used with the dental handpiece and the electrical circuit that extends within the dental handpiece.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: January 13, 2009
    Assignee: Pro-Dex, Inc.
    Inventors: Roger W. McPherson, Richard Tuan Le, Patrick L. Johnson