Patents by Inventor Karen D. Ragan

Karen D. Ragan 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).

  • LOW Tg LIGNIN MIXED ESTERS
    Publication number: 20100152428
    Abstract: The disclosure includes lignin mixed esters comprising first ester groups and second ester groups wherein the number of carbon atoms in the first ester group differs from the number of carbon atoms in the second ester group by 3 or more and processes of making the same. The unique thermal glass transition temperature properties of such lignin mixed esters are described.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 17, 2010
    Applicant: WEYERHAEUSER COMPANY
    Inventors: Angela P. Gifford, John A. Westland, Amar N. Neogi, Karen D. Ragan