Patents by Inventor Johannes G. J. Heuker of Hoek

Johannes G. J. Heuker of Hoek 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).

  • Patent number: 4573043
    Abstract: Alarm producing apparatus for safeguarding a container carried by a messenger including a time countdown system and a status detection system assuring that container and messenger remain together. Countdown time is set sufficiently to allow normal delivery of container by messenger. Smoke, sound and/or visual signals are triggered by separating container from messenger or by excess time lapse occurring during delivery of container by messenger.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: February 25, 1986
    Assignee: Captor Holding B.V.
    Inventors: Johannes G. J. Heuker of Hoek, Cornelis J. Clement, Ernst M. van der Lee