Patents by Inventor Brad Thedford Duckworth

Brad Thedford Duckworth 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).

  • Olefin polymerization process
    Patent number: 6359083
    Abstract: Disclosed is a process for producing polyolefins wherein the solids are conveyed by a gas throughout the polymerization process, thereby resulting in improved operability.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: March 19, 2002
    Assignee: Eastman Chemical Company
    Inventors: Kenneth Alan Dooley, Randal Ray Ford, Glenn Edward Moore, Brad Thedford Duckworth, Don Kent Farrer