Patents by Inventor Anke Heusquin

Anke Heusquin 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).

  • Device for indicating hydroculture-related values
    Patent number: 4878043
    Abstract: A device for indicating values which are of interest in hydroculture applications is characterized in that the device includes a tube open at one end thereof and attached to a vessel at another end thereof. A probe including a sensor is disposed proximate the one end of the tube for responding to liquid. An IC connected to the sensor includes an electronic system 12 and an optical or acoustic signal transmitter (15) is connected to the electronic system galvanically or in a wireless manner. This arrangement makes it possible to reliably indicate any absence of liquid and to read the indication with ease.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: October 31, 1989
    Inventors: Guy Heusquin, Anke Heusquin