Patents by Inventor Vinh H. Nguyen

Vinh H. 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).

  • Text teletype writer with caller identification function
    Patent number: 5915000
    Abstract: A text teletype writer (TTY) is provided for receiving, processing, and displaying caller identification information in a visual display. A call back function is included to allow for automatic DTMF dialing of a telephone number associated with a previously received call.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: June 22, 1999
    Inventors: Vinh H. Nguyen, Sidney Ander, Bryan Davis, Kevin L. Hale