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.

Date of Patent:
Mar. 02, 1999

Filed:

Jan. 13, 1998
Applicant:
Inventors:

Anatole A Klyosov, Newton, MA (US);

George P Philippidis, Boston, MA (US);

Alan M James, Boston, MA (US);

Yiannis A Monovoukas, Waltham, MA (US);

Assignee:

Thermo Fibergen, Inc., Bedford, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C13K / ;
U.S. Cl.
CPC ...
127 37 ;
Abstract

Glucose is obtained from papermaking sludge by first removing calcium carbonate from the sludge to produce a mixture substantially depleted of calcium and containing cellulose; and then hydrolyzing the calcium-depleted mixture using either a dilute or a strong acid. The glucose, as well as calcium salts removed from the sludge, may be isolated and used in numerous applications.


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