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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 10662455 B1

PDFFull Text
Expired
Date of Patent:
May. 26, 2020

Filed:

Sep. 16, 2016

Sulfur dioxide and/or sulfurous acid pretreatment

Applicant:

Iogen Corporation, Ottawa, CA;

Inventors:

Jeffrey S. Tolan, Ottawa, CA;

Daniel G. MacDonald, Ottawa, CA;

Kristin Martens, Ottawa, CA;

Natacha Leduc, Ottawa, CA;

Brian Foody, Ottawa, CA;

Assignee:

Iogen Corporation, Ottawa, ON, CA;

Attorney:

Knobbe Martens Olson & Bear LLP

Primary Examiner:

Deborah K Ware

Int. Cl.
CPC ...
C12P 19/02 (2006.01); C12P 19/14 (2006.01); C13K 1/02 (2006.01); C12P 7/10 (2006.01); C12M 1/00 (2006.01); D21C 1/04 (2006.01); C13K 13/00 (2006.01); B01D 3/06 (2006.01);
U.S. Cl.
CPC ...
C12P 19/02 (2013.01); C12M 45/06 (2013.01); C12M 45/09 (2013.01); C12P 7/10 (2013.01); C12P 19/14 (2013.01); C13K 1/02 (2013.01); C13K 13/002 (2013.01); D21C 1/04 (2013.01); B01D 3/06 (2013.01); C12P 2201/00 (2013.01); Y02E 50/16 (2013.01);
Abstract

A process for producing alcohol from lignocellulosic biomass includes adding at least one of sulfur dioxide and sulfurous acid to the lignocellulosic biomass to provide an effective sulfur dioxide dosage and/or effective sulfur dioxide slurry concentration, each of which is calculated using the ratio of the volume of the slurry in the pretreatment reactor to the total volume of the pretreatment reactor, within a predetermined range.

Find Patent Forward Citations

Tolan, Jeffrey. (2020). Sulfur dioxide and/or sulfurous acid pretreatment (U.S. Patent No. 10662455). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10662455

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

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