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:
Jul. 27, 2004
Filed:
Oct. 22, 2001
Applicant:
Inventors:
Jan L. Yang, Watkinsville, GA (US);
Jiahua Ma, Athens, GA (US);
J. Michael Pierce, Athens, GA (US);
Karl-Erik L Eriksson, Athens, GA (US);
Assignee:
University of Georgia Research Foundation, Inc., Athens, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P 1/900 ;
U.S. Cl.
CPC ...
C12P 1/900 ;
Abstract
A method and composition for deinking noncontact-printed wastepaper, particularly xerographic and laser-printed paper, and mixtures of contact and noncontact-printed wastepaper, using an enzyme mixture characterized by a high ratio of &bgr;-glucosidase activity to filter paper units (FPU) activity. The present invention also relates to an assay for evaluating enzymes for use in deinking wastepaper based on the ratio of &bgr;-glucosidase activity to FPU activity.