Patents by Inventor Kent Evans

Kent Evans has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20110130357
    Abstract: The present invention relates to novel aminoglycoside analogs having certain substituents at the 6 position of ring III which exhibit improved antifungal activity but possess minimal antibacterial properties. The compounds of the present invention are analogues of kanamycin B and kanamycin A. Also provided are methods of synthesizing and methods of using the compounds of the present invention. The compounds of the present invention are useful in treating or preventing fungal disease.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 2, 2011
    Applicant: Utah State University
    Inventors: Cheng-wei Tom Chang, C. Kent Evans, Jon Y. Takemoto
  • Publication number: 20110124068
    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.
    Type: Application
    Filed: June 25, 2010
    Publication date: May 26, 2011
    Inventors: William A. Evanko, Mark Brothers, Ken Drobish, Aristos A. Aristidou, Kent Evans, Andrew C. Hawkins, Scott Lucas
  • Patent number: 7681653
    Abstract: A swelling packer is covered with a material that is preferably in a tubular form and slipped over the swelling element to be shrink fit with applied heat. The material is formulated to break down at temperatures slightly below the expected downhole temperatures so that ideally the packer has about 48 hours of swelling delay which is normally a time period long enough to allow it to be properly located without it swelling so much as to cause it to be damaged by running in. Various polymers can be used to make an imperious covering for run in that on the way starts to break down. Ideally the material for the cover disappears about the time of sealing or shortly thereafter.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: March 23, 2010
    Assignee: Baker Hughes Incorporated
    Inventors: James R. Korte, Kent A. Evans, Dustin D. Ellis, John J. Thurston, Anthony P. Foster, Steve Rosenblatt
  • Patent number: 7666560
    Abstract: An imaging member includes a charge generating layer and a charge transport layer. The charge transport layer includes a first surface in contact with the charge generating layer and a second surface. The charge transport layer includes a film forming polymer binder and a charge transport component dispersed therein. The concentration of the charge transport component in the charge transport layer is at a peak in a region of the charge transport intermediate the first and second surfaces of the charge transport layer.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: February 23, 2010
    Assignee: Xerox Corporation
    Inventors: Satchidanand Mishra, Anthony M. Horgan, Kent Evans, George Liebermann, Kathleen M. Carmichael, Dennis J. Prosser, Richard L. Post, Edward Domm, Johann Junginger, Michael Zak
  • Publication number: 20100025049
    Abstract: A swelling packer is covered with a material that is preferably in a tubular form and slipped over the swelling element to be shrink fit with applied heat. The material is formulated to break down at temperatures slightly below the expected downhole temperatures so that ideally the packer has about 48 hours of swelling delay which is normally a time period long enough to allow it to be properly located without it swelling so much as to cause it to be damaged by running in. Various polymers can be used to make an imperious covering for run in that on the way starts to break down. Ideally the material for the cover disappears about the time of sealing or shortly thereafter.
    Type: Application
    Filed: August 4, 2008
    Publication date: February 4, 2010
    Inventors: James R. Korte, Kent A. Evans, Dustin D. Ellis, John J. Thurston, Anthony P. Foster, Steve Rosenblatt
  • Publication number: 20100025035
    Abstract: A swelling packer is covered with a material that is preferably in a tubular form and slipped over the swelling element to be shrink fit with applied heat. The material is formulated to break down at temperatures slightly below the expected downhole temperatures so that ideally the packer has about 48 hours of swelling delay which is normally a time period long enough to allow it to be properly located without it swelling so much as to cause it to be damaged by running in. Various polymers can be used to make an imperious covering for run in that on the way starts to break down. Ideally the material for the cover disappears about the time of sealing or shortly thereafter.
    Type: Application
    Filed: September 16, 2009
    Publication date: February 4, 2010
    Applicant: Baker Hughes Incorporated
    Inventors: James R. Korte, Kent A. Evans, Dustin D. Ellis, John J. Thurston, Anthony P. Foster, Steve Rosenblatt
  • Publication number: 20090171129
    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.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 2, 2009
    Applicant: Gevo, Inc.
    Inventors: William A. Evanko, Aharon M. Eyal, David A. Glassner, Fudu Miao, Aristos A. Aristidou, Kent Evans, Patrick R. Gruber, Andrew C. Hawkins
  • Publication number: 20070172749
    Abstract: A flexible imaging member which does not require the use of an anti-curl back coating is disclosed herein. The flexible imaging member has a layer comprising two charge transport molecules dispersed in a film-forming polymer binder. The first charge transport molecule is a biphenyl amine, terphenyl diamine, or bis(triarylamine) stilbene. The second charge transport molecule is a bis(triarylamine), tri-p-tolylamine, or triphenylamine. The weight ratio of second charge transport molecule to first charge transport molecule is from about 90:10 to about 67:33. Trifluoro acetic acid is also added to the layer containing the charge transport material.
    Type: Application
    Filed: October 28, 2005
    Publication date: July 26, 2007
    Inventors: Kathleen Carmichael, Kent Evans, Donald Sullivan, Satish Parikh, Kathy Lippman
  • Publication number: 20070141493
    Abstract: An imaging member having an anti-curl back coating comprising an inner layer and an outer layer is disclosed. The outer layer comprises a low surface energy polymer having siloxane segments in its backbone and the inner layer comprises a film forming polymer. The anti-curl back coating has low surface energy and improved surface lubricity.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Inventors: Kent Evans, Robert Yu, Stephen Avery
  • Patent number: 7223575
    Abstract: Disclosed in the present invention is a Zymomonas integrant and derivatives of these integrants that posses the ability to ferment pentose into ethanol. The genetic sequences encoding for the pentose-fermenting enzymes are integrated into the Zymomonas in a two-integration event of homologous recombination and transposition. Each operon includes more than one pentose-reducing enzyme encoding sequence. The integrant in some embodiments includes enzyme sequences encoding xylose isomerase, xylulokinase, transketolase and transketolase. The Zymomonas integrants are highly stable, and retain activity for producing the pentose-fermenting enzyme for between 80 to 160 generations. The integrants are also resistant to acetate inhibition, as the integrants demonstrate efficient ethanol production even in the presence of 8 up to 16 grams acetate per liter media.
    Type: Grant
    Filed: April 27, 2002
    Date of Patent: May 29, 2007
    Assignee: Midwest Research Institute
    Inventors: Min Zhang, Yat-Chen Chou, William Howe, Christine Eddy, Kent Evans, Ali Mohagheghi
  • Publication number: 20070059616
    Abstract: An imaging member includes a conductive substrate, a SiOx layer coated over the conductive substrate, a charge generating layer coated over the SiOx layer, and a charge transport layer
    Type: Application
    Filed: September 12, 2005
    Publication date: March 15, 2007
    Applicant: Xerox Corporation
    Inventors: Satchidanand Mishra, Anthony Horgan, Kent Evans, George Liebermann, Ah-Mee Hor, Min-Hong Fu, Richard Post, Kathleen Carmichael, Satish Parikh, Edward Grabowski, Donald Goodman, Gregory Kovacs
  • Publication number: 20060286471
    Abstract: An imaging member includes a charge generating layer and a charge transport layer. The charge transport layer includes a first surface in contact with the charge generating layer and a second surface. The charge transport layer includes a film forming polymer binder and a charge transport component dispersed therein. The concentration of the charge transport component in the charge transport layer is at a peak in a region of the charge transport intermediate the first and second surfaces of the charge transport layer.
    Type: Application
    Filed: June 21, 2005
    Publication date: December 21, 2006
    Inventors: Satchidanand Mishra, Anthony Horgan, Kent Evans, George Liebermann, Kathleen Carmichael, Dennis Prosser, Richard Post, Edward Domm, Johann Junginger, Michael Zak
  • Publication number: 20060257770
    Abstract: Dispersions for producing photogenerator layers of photoreceptors are provided. The dispersions include a resin, a photogenerating component, and an adhesive.
    Type: Application
    Filed: May 10, 2005
    Publication date: November 16, 2006
    Inventors: Kent Evans, David Skinner, Min-Hong Fu, Kathleen Carmichael, June Schneider, John Bergfjord, Susan VanDusen
  • Publication number: 20060216620
    Abstract: A photoreceptor comprising a charge transport layer doped with a polyarylate polymer is provided. A charge transport layer is doped with about 0.1 to about 10.0% by weight, solids basis, of a polyarylate polymer, such as for example Ardel. Charge transport layers doped with a polyarylate polymer exhibit improved electrical performance in terms of lower Vr and VBG values.
    Type: Application
    Filed: March 23, 2005
    Publication date: September 28, 2006
    Inventors: Min-Hong Fu, Kent Evans, David Skinner, Kathleen Carmichael, June Schneider, Susan VanDusen
  • Publication number: 20060024445
    Abstract: A coating application system includes a coating applicator having an outlet through which a stream of a liquid coating is delivered, a substrate which receives the stream of liquid coating, and a vacuum system which applies a vacuum to the liquid coating.
    Type: Application
    Filed: July 28, 2004
    Publication date: February 2, 2006
    Inventors: Alfred Willnow, Kent Evans, Colleen Helbig, Kathleen Carmichael, June Schneider, David Skinner, Min-Hong Fu, Walter Lerminiaux, Mark Muscato, Kenneth Strong, David DeHollander, Kirk Michaels
  • Publication number: 20050271958
    Abstract: A charge transport layer for an imaging member comprising a charge transport layer wherein the charge transport layer is coated in two passes and wherein the second pass comprises the application of a charge transport component and a hindered phenol covalently bonded to a polymer. The charge transport layer exhibits excellent wear resistance, excellent electrical performance, and excellent print quality.
    Type: Application
    Filed: August 4, 2005
    Publication date: December 8, 2005
    Inventors: Yuhua Tong, Timothy Fuller, Colleen Helbig, Kent Evans, John Yanus, Karen Garland, Paul DeFeo, Anita Lynch, Kathleen Carmichael, Damodar Pai, Dale Renfer, Markus Silvestri
  • Publication number: 20050053854
    Abstract: A photoconductive imaging member is disclosed comprising a charge generation layer and a charge transport layer comprising an oxidative inhibitor. An electrophotographic imaging process using the imaging member of the invention is also described.
    Type: Application
    Filed: September 5, 2003
    Publication date: March 10, 2005
    Inventors: Damodar Pai, Kent Evans, Kathleen Carmichael, Colleen Helbig, John Yanus, Yuhua Tong, Timothy Fuller, Karen Garland, Paul DeFeo, Anita Lynch
  • Publication number: 20040156635
    Abstract: An optical network unit (ONU) interconnected by passive optical network (PON) equipment to an optical line terminal (OLT) is identified using secondary modulation of the optical carrier to impress an identifier of the ONU onto the carrier. This resolves a recurring ONU failure mode detection problem caused by failure of a laser driver that causes the ONU to be stuck in an on state.
    Type: Application
    Filed: June 23, 2003
    Publication date: August 12, 2004
    Applicant: Nortel Networks Limited
    Inventors: Kent Evans Felske, Richard Brand, Eric Bernier
  • Publication number: 20030162271
    Abstract: Disclosed in the present invention is a Zymomonas integrant and derivatives of these integrants that posses the ability to ferment pentose into ethanol. The genetic sequences encoding for the pentose-fermenting enzymes are integrated into the Zymomonas in a two-integration event of homologous recombination and transposition. Each operon includes more than one pentose-reducing enzyme encoding sequence. The integrant in some embodiments includes enzyme sequences encoding xylose isomerase, xylulokinase, transketolase and transketolase. The Zymomonas integrants are highly stable, and retain activity for producing the pentose-fermenting enzyme for between 80 to 160 generations. The integrants are also resistant to acetate inhibition, as the integrants demonstrate efficient ethanol production even in the presence of 8 up to 16 grams acetate per liter media.
    Type: Application
    Filed: April 27, 2002
    Publication date: August 28, 2003
    Inventors: Min Zhang, Yat-Chen Chou, William Howe, Christine Eddy, Kent Evans, Ali Mohagheghi