Patents by Inventor Stuart F. Eckmann

Stuart F. Eckmann 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).

  • Interactive educational system with voice reaction and access using tone-generating telephone
    Patent number: 4539435
    Abstract: This invention relates to an automated educational system in which a remote student or subject can be interrogated by a central automated interrogation system, can respond using machine-distinguishable signals generated by a Touch-Tone-type telephone, and in which an appropriate reaction to the answer chosen by the student can be communicated to the student.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: September 3, 1985
    Inventor: Stuart F. Eckmann