Patents by Inventor W. Alan Rendall

W. Alan Rendall 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 extracting the chemical components from dissociated lignocellulosic material
    Patent number: 4908098
    Abstract: The chemical components of lignocellulosic material that have been dissociated by a stream explosion process can be extracted from the mixture of components using a solvent extraction process. The dissociated lignocellulosic material is put in a column and the substances which are soluble in water, alcohol and caustic are leached out of the mixture by solvent extraction with relatively small volumes of those solvents. No agitation is used. Substantially pure cellulose remains in the column and it can be bleached before removal from the column.
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: March 13, 1990
    Assignee: Tigney Technology Inc.
    Inventors: Edward A. DeLong, Edward P. DeLong, George S. Ritchie, W. Alan Rendall