Kent Douglas Evans

US Patent:

8101808, Jan 24, 2012

Filed:

Dec 23, 2008

Appl. No.:

12/342992

Inventors:

William A. Evanko - Golden CO, US
Aharon M. Eyal - Jerusalem, IL
David A. Glassner - Littleton CO, US
Fudu Miao - Chester Springs PA, US
Aristos A. Aristidou - Highlands Ranch CO, US
Kent Evans - Littleton CO, US
Patrick R. Gruber - Longmont CO, US
Andrew C. Hawkins - Parker CO, US

Assignee:

GEVO, Inc. - Englewood CO

International Classification:

C07C 29/76

US Classification:

568916

Abstract:

This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allows recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.

US Patent:

8283505, Oct 9, 2012

Filed:

Jan 5, 2012

Appl. No.:

13/344460

Inventors:

William A. Evanko - Golden CO, US
Aharon M. Eyal - Jerusalem, IL
David A. Glassner - Littleton CO, US
Fudu Miao - Chester Springs PA, US
Aristos A. Aristidou - Highlands Ranch CO, US
Kent Evans - Littleton CO, US
Patrick R. Gruber - Longmont CO, US
Andrew C. Hawkins - Parker CO, US

Assignee:

Gevo, Inc. - Englewood CO

International Classification:

C07C 29/76

US Classification:

568916

Abstract:

This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allows recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.

US Patent:

8304588, Nov 6, 2012

Filed:

Jan 5, 2012

Appl. No.:

13/344464

Inventors:

William A. Evanko - Golden CO, US
Aharon M. Eyal - Jerusalem, IL
David A. Glassner - Littleton CO, US
Fudu Miao - Chester Springs PA, US
Aristos A. Aristidou - Highlands Ranch CO, US
Kent Evans - Littleton CO, US
Patrick R. Gruber - Longmont CO, US
Andrew C. Hawkins - Parker CO, US

Assignee:

Gevo, Inc. - Englewood CO

International Classification:

C07C 29/76

US Classification:

568916

Abstract:

This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allows recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.

US Patent:

8614077, Dec 24, 2013

Filed:

Nov 22, 2011

Appl. No.:

13/302775

Inventors:

William A. Evanko - Golden CO, US
Aharon M. Eyal - Jerusalem, IL
David A. Glassner - Littleton CO, US
Fudu Miao - Chester Springs PA, US
Aristos A. Aristidou - Highlands Ranch CO, US
Kent Evans - Littleton CO, US
Patrick R. Gruber - Longmont CO, US
Andrew C. Hawkins - Parker CO, US
Peter Meinhold - Englewood CO, US
Reid M. Renny Feldman - Highlands Ranch CO, US
Uvini Gunawardena - Irvine CA, US
Jun Urano - Aurora CO, US

Assignee:

Gevo, Inc. - Englewood CO

International Classification:

C12P 7/16
C12N 9/10
C12P 17/10

US Classification:

435160, 4352523, 4352542, 435161, 435 2

Abstract:

This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allows recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.

US Patent:

20110124068, May 26, 2011

Filed:

Jun 25, 2010

Appl. No.:

12/824050

Inventors:

William A. Evanko - Golden CO, US
Mark Brothers - Longmont CO, US
Ken Drobish - Castle Rock CO, US
Aristos A. Aristidou - Highlands Ranch CO, US
Kent Evans - Littleton CO, US
Andrew C. Hawkins - Parker CO, US
Scott Lucas - Parker CO, US

International Classification:

C12P 7/04
C07C 29/74
C12C 11/00
C12M 1/00
C12N 1/00

US Classification:

435157, 568913, 426 11, 4352891, 435243

Abstract:

This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allow recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.

US Patent:

20110201090, Aug 18, 2011

Filed:

Feb 11, 2011

Appl. No.:

13/025801

Inventors:

Thomas Buelter - Denver CO, US
Andrew Hawkins - Parker CO, US
Peter Meinhold - Denver CO, US
Catherine Asleson Dundon - Englewood CO, US
Aristos Aristidou - Highlands Ranch CO, US
Jun Urano - Aurora CO, US
Doug Lies - Parker CO, US
Matthew Peters - Highlands Ranch CO, US
Melissa Dey - Aurora CO, US
Justas Jancauskas - Englewood CO, US
Kent Evans - Denver CO, US
Julie Kelly - Denver CO, US
Ruth Berry - Englewood CO, US

Assignee:

GEVO, INC. - Englewood CO

International Classification:

C12N 1/00

US Classification:

435243

Abstract:

The present invention relates to recombinant microorganisms comprising biosynthetic pathways and methods of using said recombinant microorganisms to produce various beneficial metabolites. In various aspects of the invention, the recombinant microorganisms may further comprise one or more modifications resulting in the reduction or elimination of 3 keto-acid (e.g., acetolactate and 2-aceto-2-hydroxybutyrate) and/or aldehyde-derived by-products. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the clade, Crabtree-negative yeast microorganisms, Crabtree-positive yeast microorganisms, post-WGD (whole genome duplication) yeast microorganisms, pre-WGD (whole genome duplication) yeast microorganisms, and non-fermenting yeast microorganisms.

US Patent:

20130059370, Mar 7, 2013

Filed:

Nov 2, 2012

Appl. No.:

13/667721

Inventors:

Aharon M. Eyal - Jerusalem, IL
David A. Glassner - Littleton CO, US
Fudu Miao - Chester Springs PA, US
Aristos A. Aristidou - Highlands Ranch CO, US
Kent Evans - Littleton CO, US
Patrick R. Gruber - Longmont CO, US
Andrew C. Hawkins - Parker CO, US

Assignee:

GEVO, INC. - Englewood CO

International Classification:

C12M 1/107
B23P 11/00

US Classification:

4352941, 29428

Abstract:

This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allows recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.

US Patent:

20130122561, May 16, 2013

Filed:

Aug 15, 2012

Appl. No.:

13/586599

Inventors:

William A. Evanko - Golden CO, US
Mark Brothers - Longmont CO, US
Ken Drobish - Castle Rock CO, US
Aristos A. Aristidou - Highlands Ranch CO, US
Kent Evans - Littleton CO, US
Andrew C. Hawkins - Parker CO, US
Scott Lucas - Parker CO, US

Assignee:

Gevo, Inc. - Englewood CO

International Classification:

B01D 5/00

US Classification:

435160, 2021852

Abstract:

This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allow recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.