Patents by Inventor David Mark Naylor

David Mark Naylor 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 for forming discrete pellets from viscous materials
    Patent number: 6168733
    Abstract: A process for making pellets from a viscous material includes the steps of extruding the viscous material from a first conduit into a pelletizing fluid in a first zone; and passing the extruded viscous material and pelletizing fluid into a second zone having an increase in the velocity of the pelletizing fluid and a step-wise reduction in the pressure relative to the first zone. Advantageously, this step change combination produces sufficient forces by the pelleting fluid on the viscous material sufficiently to form discrete pellets of a substantially uniform size distribution.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: January 2, 2001
    Assignee: Eastman Chemical Company
    Inventors: David Mark Naylor, Paul Keith Scherrer