Patents by Inventor Dwane S. Hutto

Dwane S. Hutto 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).

  • Process for removal of lignin from lignocellulosic material
    Patent number: 6752904
    Abstract: The present invention relates to a process for the removal of lignin from lignocellulose containing material comprising treating the lignocellulose containing material prior to a high-yield pulping process with a delignifying gas comprising gaseous compounds comprising at least one oxygen atom such as chlorine dioxide containing gas.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: June 22, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Patrick S. Bryant, John C. Sokol, Dwane S. Hutto
  • Pulping process
    Publication number: 20020088569
    Abstract: The present invention relates to a process for the removal of lignin from lignocellulose containing material comprising treating the lignocellulose containing material prior to a high-yield pulping process with a delignifying gas comprising gaseous compounds comprising at least one oxygen atom such as chlorine dioxide containing gas.
    Type: Application
    Filed: March 2, 2001
    Publication date: July 11, 2002
    Inventors: Patrick S. Bryant, John C. Sokol, Dwane S. Hutto