Patents by Inventor Brent Coghill

Brent Coghill 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).

  • Extrusion process and decorative synthetic lumber produced therefrom
    Publication number: 20060061004
    Abstract: Described is an extrusion process and a decorative synthetic lumber produced therefrom by providing a cellulose plastic composition; delivering the composition through an area containing a screw in an extruder; maintaining a back pressure in the screw area to keep the screw area filled with the composition; and extruding the composition, at a temperature at or slightly above the melt point of the composition, into a decorative shaped synthetic lumber product through a breaker plate designed to maintain the back pressure in the screw area. A colorant may be added to the feed throat of the extruder.
    Type: Application
    Filed: September 22, 2004
    Publication date: March 23, 2006
    Inventors: William Bufton, Brent Coghill, Bert Corliss, Charles Croneworth, Steven Henley, Matthew Sexton