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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.:

US 5202249 B1

PDFFull Text
Date of Patent:
Apr. 13, 1993

Filed:

Aug. 13, 1991

Xylanase for biobleaching

Applicant:
Inventors:

Dieter Kluepfel, Montreal, CA;

Rolf Morosoli, Ville St-Laurent, CA;

Francois Shareck, Dollard-des-Ormeaux, CA;

Assignee:

Imperial Chemical Industries PLC, London, GB;

Attorney:

Dickheiser; William E.

Primary Examiner:

Robert A Wax

Assistant Examiner:

Rebecca Prouty

Int. Cl.
CPC ...
C12N / ;
U.S. Cl.
CPC ...
435201 ; 435 691 ; 435 712 ; 4351723 ; 43525235 ; 435278 ; 4353201 ; 435886 ; 536 232 ; 935 14 ; 935 29 ; 935 56 ; 935 59 ; 935 75 ;
Abstract

A process for the production and use of a xylanase enzyme, having a high specific activity, of use in the treatment and/or biobleaching of chemical pulps is described. The enzyme provides for a more commercially feasible process for the treatment of pulps, and lignocellulosic materials in general, which process provides improved results in delignification and brightening over conventional bleaching process, together with reduced bleaching chemical consumption and environmental impact.

Find Patent Forward Citations

Kluepfel, Dieter. (1993). Xylanase for biobleaching (U.S. Patent No. 5202249). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5202249

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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