Patents by Inventor Michael J. Pepsin

Michael J. Pepsin 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).

  • Patent number: 7691617
    Abstract: The present invention relates to an acid-stable alpha amylase (asAA) derived from a strain of Aspergillus kawachi, which has granular starch hydrolyzing (GSH) activity, the heterologous expression of the asAA having GSH activity in filamentous fungal host cells and enzyme compositions including the same which optionally include glucoamylase.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: April 6, 2010
    Assignee: Danisco US Inc.
    Inventors: Nigel Dunn-Coleman, Susan M. Fiske, Suzanne E. Lantz, Paulien Neefe-Kruithof, Michael J. Pepsin, Jayarama K. Shetty
  • Publication number: 20100003366
    Abstract: Alpha-amylases from Bacillus subtilis (AmyE), variants thereof, nucleic acids encoding the same, and host cells comprising the nucleic acids are provided. Methods of using AmyE or variants thereof are disclosed, including liquefaction and/or saccharification of starch. Such methods may yield sugars useful for ethanol production or high fructose corn syrup production. In some cases, the amylases can be used at low pH, in the absence of calcium, and/or in the absence of a glucoamylase.
    Type: Application
    Filed: June 5, 2009
    Publication date: January 7, 2010
    Applicant: Danisco US Inc., Genencor Division
    Inventors: William A. Cuevas, Sang-Kyu Lee, Sandra W. Ramer, Andrew Shaw, Amr R. Toppozada, David E. Estell, Louise Wallace, Regina Chin, Carol A. Requadt, Scott D. Power, Michael J. Pepsin
  • Publication number: 20090305935
    Abstract: An ?-amylase from Bacillus subtilis (AmyE) produces significant amounts of glucose from various carbohydrate substrates, including vegetable starch, maltoheptaose, and maltotriose. Among other things, this advantageous property allows AmyE or variants thereof to be used in a saccharification reaction having a reduced or eliminated requirement for glucoamylase. The reduction or elimination of the glucoamylase requirement significantly improves the efficiency of the production of ethanol or high fructose corn syrup, for example.
    Type: Application
    Filed: June 4, 2009
    Publication date: December 10, 2009
    Inventors: Luis G. CASCAO-PEREIRA, Regina CHIN, William A. CUEVAS, David A. ESTELL, Sang-Kyu LEE, Michael J. PEPSIN, Scott D. POWER, Sandra W. RAMER, Carol A. REQUADT, Andrew SHAW, Amr R. TOPPOZADA, Louise WALLACE
  • Publication number: 20090226569
    Abstract: Described are variants of alpha (?)-amylases having altered starch hydrolysis profiles. The variants have improved thermostability and increased specific activity, resulting in reduced peak viscosity and altered final viscosity during starch liquefaction. The amylase variants are useful, e.g., in liquefaction and other starch degradation processes.
    Type: Application
    Filed: February 4, 2009
    Publication date: September 10, 2009
    Applicant: DANISCO US INC., GENENCOR DIVISION
    Inventors: Sandra W. Ramer, Michael J. Pepsin, Andrew Shaw
  • Publication number: 20090203087
    Abstract: The present invention relates to filamentous fungal host cells and particularly Trichoderma host cells useful for the production of heterologous granular starch hydrolyzing enzymes having glucoamylase activity (GSHE). Further the invention relates to a method for producing a glucose syrup comprising contacting a granular starch slurry obtained from a granular starch substrate simultaneously with an alpha amylase and a GSHE at a temperature equal to or below the gelatinization temperature of the granular starch to obtain a composition of a glucose syrup.
    Type: Application
    Filed: October 19, 2007
    Publication date: August 13, 2009
    Inventors: Toby M. Baldwin, Benjamin S. Bower, Gopal K. Chotani, Nigel Dunn-Coleman, Oreste J. Lantero, JR., Suzanne E. Lantz, Michael J. Pepsin, Jayarama K. Shetty, Bruce A. Strohm
  • Publication number: 20080199927
    Abstract: The present invention relates to a method for producing an end product and particularly an alcohol which comprises contacting a granular starch substrate with an acid-stable alpha amylase (asAA) having granular starch hydrolyzing (GSH) activity and a glucoamylase (GA) in a fermentation step which also comprises ethanologenic microorganisms at a temperature between about 25 to 65° C. and producing an end-product.
    Type: Application
    Filed: May 24, 2005
    Publication date: August 21, 2008
    Inventors: Nigel Dunn-Coleman, Susan M. Fiske, Oreste J. Lantero, Suzanne E. Lantz, Michael J. Pepsin, Jayarama K. Shetty
  • Publication number: 20080153136
    Abstract: The present invention relates to an acid-stable alpha amylase (asAA) derived from a strain of Aspergillus kawachi, which has granular starch hydrolyzing (GSH) activity, the heterologous expression of the asAA having GSH activity in filamentous fungal host cells and enzyme compositions including the same which optionally include glucoamylase.
    Type: Application
    Filed: January 30, 2008
    Publication date: June 26, 2008
    Inventors: Nigel Dunn-Coleman, Susan M. Fiske, Suzanne E. Lantz, Paulien Neefe-Kruithof, Michael J. Pepsin, Jayarama K. Shetty
  • Patent number: 7354752
    Abstract: The present invention relates to an acid-stable alpha amylase (asAA) derived from a strain of Aspergillus kawachi, which has granular starch hydrolyzing (GSH) activity, the heterologous expression of the asAA having GSH activity in filamentous fungal host cells and enzyme compositions including the same which optionally include glucoamylase.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: April 8, 2008
    Assignee: Genencor International, Inc.
    Inventors: Nigel Dunn-Coleman, Susan M. Fiske, Suzanne E. Lantz, Paulien Neefe-Kruithof, Michael J. Pepsin, Jayarama K. Shetty
  • Patent number: 7335503
    Abstract: The present invention relates to filamentous fungal host cells and particularly Trichoderma host cells useful for the production of heterologous granular starch hydrolyzing enzymes having glucoamylase activity.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: February 26, 2008
    Assignee: Genencor International, Inc.
    Inventors: Toby M. Baldwin, Benjamin S. Bower, Nigel Dunn-Coleman, Suzanne E. Lantz, Michael J. Pepsin
  • Patent number: 7303899
    Abstract: The present invention relates to filamentous fungal host cells and particularly Trichoderma host cells useful for the production of heterologous granular starch hydrolyzing enzymes having glucoamylase activity (GSHE). Further the invention relates to a method for producing a glucose syrup comprising contacting a granular starch slurry obtained from a granular starch substrate simultaneously with an alpha amylase and a GSHE at a temperature equal to or below the gelatinization temperature of the granular starch to obtain a composition of a glucose syrup.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: December 4, 2007
    Assignee: Genencor International, Inc.
    Inventors: Toby M. Baldwin, Benjamin S. Bower, Gopal K. Chotani, Nigel Dunn-Coleman, Oreste J. Lantero, Jr., Suzanne E. Lantz, Michael J. Pepsin, Jayarama K. Shetty, Bruce A. Strohm
  • Patent number: 7262041
    Abstract: The present invention relates to filamentous fungal host cells and particularly Trichoderma host cells useful for the production of heterologous granular starch hydrolyzing enzymes having glucoamylase activity.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: August 28, 2007
    Assignee: Genencor International, Inc.
    Inventors: Toby M. Baldwin, Benjamin S. Bower, Nigel Dunn-Coleman, Suzanne E. Lantz, Michael J. Pepsin
  • Patent number: 7205138
    Abstract: The present invention relates to a granular starch hydrolyzing enzyme composition comprising an acid stable alpha amylase (asAA) having granular starch hydrolyzing activity. The invention also relates to a one-step method for producing an alcohol which comprises contacting a granular starch substrate with an acid-stable alpha amylase (asAA) having granular starch hydrolyzing (GSH) activity and a glucoamylase (GA) in a fermentation step which also comprises ethanologenic microorganisms at a temperature of 25–40° C. to obtain a fermentation broth having 5 to 20% ethanol.
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: April 17, 2007
    Assignee: Genencor International, Inc.
    Inventors: Nigel Dunn-Coleman, Suzanne E. Lantz, Michael J. Pepsin
  • Patent number: 7037704
    Abstract: The present invention relates to a granular starch hydrolyzing enzyme composition comprising an acid stable alpha amylase (asAA) having granular starch hydrolyzing activity. The invention also relates to a one-step method for producing an alcohol which comprises contacting a granular starch substrate with an acid-stable alpha amylase (asAA) having granular starch hydrolyzing (GSH) activity and a glucoamylase (GA) in a fermentation step which also comprises ethanologenic microorganisms at a temperature of 25–40° C. to obtain a fermentation broth having 5 to 20% ethanol.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: May 2, 2006
    Assignee: Genencor International, Inc.
    Inventors: Nigel Dunn-Coleman, Oreste J. Lantero, Jr., Suzanne E. Lantz, Michael J. Pepsin, Jayarama K. Shetty
  • Patent number: 5970066
    Abstract: A virtual ethernet interface interconnects a first computer at a customer premise with an ethernet local area network (LAN) at a central office that is connected to the customer premise via a digital subscriber line (DSL). The virtual ethernet interface comprises a virtual interface card connected to the first computer and a physical interface card connected to a second computer that is in communication with the ethernet hub. On start up, the central office computer sends the MAC address associated with the ethernet interface of the physical interface card back to the virtual interface card of the first computer. Thus, the virtual ethernet interface allows the first computer to form ethernet frames using the MAC address of the physical interface card so that it appear as though they were originated from the second computer. Further, the first computer can receive frames taken from the ethernet LAN by the physical interface card and transmitted to the virtual interface card over the DSL link.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: October 19, 1999
    Assignee: Paradyne Corporation
    Inventors: Gerard P. Lowry, Michael J. Pepsin