Patents by Inventor Benjamin E. Levie

Benjamin E. Levie 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).

  • METHODS FOR PRODUCING A HYDROLYSATE AND ETHANOL FROM LIGNOCELLULOSIC MATERIALS
    Publication number: 20080227161
    Abstract: A method for producing a hydrolysate from lignocellulosic materials generally includes fiberizing the lignocellulosic materials, separating the lignocellulosic materials into at least a first portion and a second portion, wherein at least the first portion includes lignin, treating the first portion to deactivate at least a portion of the lignin in the first portion, re-combining the first and second portions after treating the first portion, and hydrolyzing the lignocellulosic materials with enzymes to produce a hydrolysate.
    Type: Application
    Filed: March 17, 2008
    Publication date: September 18, 2008
    Applicant: WEYERHAEUSER COMPANY
    Inventors: Benjamin E. Levie, Amar N. Neogi, Sheldon J B Duff, Jeffrey E. Mayovsky, Dwight E. Anderson, Robert C. Eckert, Chundakkadu Krishna
  • Pulp chip fissure test device and method for estimating screened pulp yield
    Patent number: 5970783
    Abstract: The invention consists of a method and apparatus for estimating screened pulp yield using water uptake rate of a sample of screened pulp chips. A dried chip sample is placed in a wire basket and totally immersed in water. A balance records the rate of water uptake over a period of about 35 seconds. This is preferably entered directly into a computer to give an output closely predicting the yield of screened pulp.
    Type: Grant
    Filed: February 20, 1999
    Date of Patent: October 26, 1999
    Assignee: Weyerhaeuser Company
    Inventors: Benjamin E. Levie, Gail E. Johnson, Gevan R. Marrs