Patents by Inventor Grady Logan

Grady Logan 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).

  • Vibrating screen separator
    Patent number: 6513664
    Abstract: A vibrating screen separator. The vibrating screen separator may be operated in a linear or elliptical mode of operation. In the linear mode of operation, the screen separator moves along a reciprocating straight line path, and, in the elliptical mode of operation, the screen separator moves along an elliptical path.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: February 4, 2003
    Assignee: M-I, L.L.C.
    Inventors: Grady Logan, Gary Fout, Roger Suter