Patents by Inventor Stig Lundquist

Stig Lundquist 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).

  • System for the measurement of the concentration particulates in a flowing gas
    Patent number: 4973909
    Abstract: A system for estimating the burden of particulate levitated in a flow of gas which includes an upstream device for electrically charging the particulate, a downstream device for sensing the intensity of the field produced by the electrically charged particulate and an indicating device sensitive to an output of the downstream sensing device.
    Type: Grant
    Filed: January 17, 1990
    Date of Patent: November 27, 1990
    Assignees: University of Western Ontario, Inco Limited
    Inventors: G. S. Peter Castle, Ion I. Inculet, Stig Lundquist, William J. Middleton