Patents by Inventor Randy Donahoo

Randy Donahoo 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).

  • Intra-oral optical viewing device
    Patent number: 5528432
    Abstract: An electronic optical viewing wand capable of viewing an object in a confined space, such as a dental patient's mouth, using only ambient light. The wand can be held and the focused in one hand via a telescoping/sliding focusing casing. The focal distance is adjustable from about 5 mm to infinity without having to change lenses.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: June 18, 1996
    Assignee: Ultrak, Inc.
    Inventor: Randy Donahoo
  • Video imaging dental camera for viewing teeth
    Patent number: D354566
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: January 17, 1995
    Assignee: Dental Vision Direct, Inc., a Texas corporation
    Inventor: Randy Donahoo