Patents by Inventor Eric Clowez

Eric Clowez 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).

  • Test telephone
    Patent number: 6061429
    Abstract: A test terminal includes a circuit for opening a loop switch to prevent setting up of calls from the terminal via a telephone line when a signal received from the telephone line via a first high-impedance connection exceeds a predetermined threshold indicating that the telephone line is busy. An alarm circuit indicates that any call from the terminal is prohibited. Operation of the terminal in discreet monitoring mode is also prohibited if the line is busy.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: May 9, 2000
    Assignee: S.A. Henri Depaepe
    Inventor: Eric Clowez