The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 2006
Filed:
May. 30, 2002
Masood Akhtar, Madison, WI (US);
Eric G. Horn, Madison, WI (US);
Michael J. Lentz, Madison, WI (US);
Ross E. Swaney, Madison, WI (US);
Masood Akhtar, Madison, WI (US);
Eric G. Horn, Madison, WI (US);
Michael J. Lentz, Madison, WI (US);
Ross E. Swaney, Madison, WI (US);
Biopulping International, Inc., Madison, WI (US);
Abstract
In a new process for preparing pulped wood chips for paper making, chips from a hardwood such as eucalyptus are inoculated with aliving culture of one or more white rot fungi. The fungi propagate throughout the body of the wood chip, selectively attacking the lignin of the wood without harming the cellulosic fibers. Subsequent mechanical pulpting results in reduced utilization of energy, improved strength, and reduced cooking time.