Patents by Inventor John Dargan

John Dargan 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).

  • Telephonic data access and transmission system
    Patent number: 4677659
    Abstract: A system for transmitting and accessing data through a standard telephone system. The system including activating a key or sequence of keys wherein each key represents a plurality of letters. Signals produced by activating the keys are compared to a data base having indexed entries of words or names. In this way, words can be input into the system using only 8 unique keys.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: June 30, 1987
    Inventor: John Dargan