Patents by Inventor Erwin J. Bakker

Erwin J. Bakker 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).

  • Method and device for separating solid particles on the basis of a difference in density
    Patent number: 7753211
    Abstract: The invention relates to a method of separating solid particles, using a magnetic fluid, wherein the magnetic fluid is passed through a magnetic field for the purpose of changing the effective density of the magnetic fluid, and the particles are separated into fractions of different density. The present invention further relates to device for separating solid particles, using a magnetic fluid.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: July 13, 2010
    Assignee: Bakker Holding Son B.V.
    Inventors: Peter C. Rem, Simon P. Berkhout, Erwin J. Bakker