Patents by Inventor John W. Koning, Jr.

John W. Koning, Jr. 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 of pulping wood chips with a fungi using sulfite salt-treated wood chips
    Patent number: 5460697
    Abstract: A method of making a wood pulp is disclosed. Wood is first chipped into wood chips. The wood chips are treated with an amount of sulfite salt sufficient to inhibit indigenous microorganism growth. The treated wood chips are introduced into a bioreactor and inoculated with a culture of white-rot fungus. The wood chips are incubated under conditions favoring the propagation of white-rot fungus and then mechanically pulped.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: October 24, 1995
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Masood Akhtar, Michael C. Attridge, John W. Koning, Jr., T. Kent Kirk