Patents by Inventor Donald L. Michelsen

Donald L. Michelsen 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).

  • Microbubble generator
    Patent number: 5314644
    Abstract: Means are provided for supplying a liquid surfactant solution, for supplying a gas under pressure, for mixing the liquid surfactant solution and the pressurized gas to form a liquid coarse dispersion of relatively large gas bubbles, and for receiving the liquid coarse dispersion to generate a liquid fine dispersion of relatively small micron-size gas bubbles.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: May 24, 1994
    Assignee: Virginia Polytechnic Institute and State University
    Inventors: Donald L. Michelsen, Felix Sebba