Patents by Inventor David Estell

David Estell 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: 9273298
    Abstract: The present invention provides methods and compositions comprising at least one isoprene synthase enzyme with improved specific productivity. In particular, the present invention provides variant plant isoprene synthases for increased isoprene production in host cells.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: March 1, 2016
    Assignees: DANISCO US INC., THE GOODYEAR TIRE & RUBBER COMPANY
    Inventors: Zachary Q. Beck, David A. Estell, Jeffrey V. Miller, Christopher L. Rife, Derek H. Wells
  • Publication number: 20160053243
    Abstract: Disclosed alpha-amylase/variant alpha-amylase enzymes, nucleic acids encoding the same, and compositions and methods related to the production and use thereof. The alpha-amylase/variant alpha-amylases are useful, for example, for starch liquefaction and saccharification, for cleaning starchy stains in laundry or dishwashing, for textile processing (e.g., desizing), in animal feed for improving digestibility, and for baking and brewing.
    Type: Application
    Filed: December 11, 2013
    Publication date: February 25, 2016
    Inventors: Luis G. Cascao-Pereira, David A. Estell, Dina Finan, Marc Kolkman, Sandra Ramer
  • Publication number: 20160032266
    Abstract: The present invention provides methods and compositions comprising at least one thermolysin-like neutral protease enzyme with improved storage stability and/or catalytic activity. In some embodiments, the thermolysin finds use in cleaning and other applications comprising detergent. In some particularly preferred embodiments, the present invention provides methods and compositions comprising thermolysin formulated and/or engineered to resist detergent-induced inactivation.
    Type: Application
    Filed: July 8, 2015
    Publication date: February 4, 2016
    Inventors: David A. Estell, Ronaldus W.J. Hommes, Amy D. Liu, Andrew Shaw
  • Publication number: 20160032267
    Abstract: The present invention provides efficient methods for obtaining a protein with one or more beneficial attributes in industrial, consumer or pharmaceutical applications. In some preferred embodiments, the present invention provides methods for producing superior enzymes for a given application through screening an abbreviated set of candidate enzymes.
    Type: Application
    Filed: August 7, 2015
    Publication date: February 4, 2016
    Applicant: DANISCO US INC.
    Inventors: Luis G. Cascao-Pereira, David A. Estell, James T. Kellis, Ayrookaran J. Poulose
  • Publication number: 20160010072
    Abstract: The present invention provides engineered protease variants. In particular, the protease variants comprise combinable mutations at selected surface positions that affect the charge and/or hydrophobicity of the enzyme to enhance at least one desired property of the resulting variant enzyme in a chosen application. Compositions comprising the protease variants, and methods for using the same are also provided.
    Type: Application
    Filed: June 29, 2015
    Publication date: January 14, 2016
    Inventors: Wolfgang Aehle, Luis G. Cascao-Pereira, David A. Estell, Frits Goedegebuur, James T. Kellis, Ayrookaran J. Poulose, Brian F. Schmidt
  • Publication number: 20160010129
    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 17, 2015
    Publication date: January 14, 2016
    Inventors: William A. Cuevas, Sang-Kyu Lee, Sandra W. Ramer, Andrew Shaw, Amr R. Toppozada, David A. Estell, Louise Wallace, Regina Chin, Carol A. Requadt, Scott D. Power, Michael J. Pepsin
  • Patent number: 9163263
    Abstract: The invention provides for compositions and methods for producing isoprene using isoprene synthase variants with improved properties.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: October 20, 2015
    Assignees: The Goodyear Tire & Rubber Company, Danisco US Inc.
    Inventors: Zachary Q. Beck, David A. Estell, Jeffrey V. Miller, James Ngai, Christopher L. Rife, Derek H. Wells
  • Publication number: 20150291944
    Abstract: The present invention provides lipolytic enzyme variants. Specifically, the present invention provides lipolytic enzyme variants having one or more modifications as compared to a parent lipolytic enzyme having at least one improved property. In addition, the present invention provides compositions comprising a lipolytic enzyme variant of the invention. The present invention also provides methods of cleaning using compositions comprising a lipolytic enzyme variant of the invention.
    Type: Application
    Filed: October 11, 2013
    Publication date: October 15, 2015
    Applicant: DANISCO US INC.
    Inventors: Thomas P. Graycar, Sina Pricelius, Ayrookaran J. Poulose, David A. Estell
  • Patent number: 9157052
    Abstract: The present invention provides protease variants, compositions comprising protease variants, and methods of using such protease variants and compositions.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: October 13, 2015
    Assignee: DANISCO US INC.
    Inventors: Joshua Roy Basler, Luis Gustavo Cascao-Pereira, David A. Estell, James T. Kellis, Jr., Alexander Pisarchik, Ayrookaran J. Poulose, Daniel Torres-Pazmino
  • Patent number: 9133425
    Abstract: The present invention provides efficient methods for obtaining a protein with one or more beneficial attributes in industrial, consumer or pharmaceutical applications. In some preferred embodiments, the present invention provides methods for producing superior enzymes for a given application through screening an abbreviated set of candidate enzymes.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: September 15, 2015
    Assignee: Danisco US Inc.
    Inventors: Luis G. Cascao-Pereira, David A. Estell, James T. Kellis, Ayrookaran J. Poulose
  • Publication number: 20150240192
    Abstract: The present invention provides a Bacillus sp. subtilisin variant. In addition, the present invention provides automatic dishwashing compositions comprising this serine protease variant.
    Type: Application
    Filed: February 5, 2015
    Publication date: August 27, 2015
    Applicant: DANISCO US INC.
    Inventors: David A. Estell, Frits Goedegebuur, Ayrookaran J. Poulose
  • Publication number: 20150218492
    Abstract: Single-dose enzyme tablets for direct sale to consumers are provided for boosting the performance of automatic laundry and dish washing operations using conventional detergents. The tablets provide a wash performance that is better than or at least equal to the wash performance of the detergents alone even when the time and or temperature of the wash cycle is decreased. The tablets may be provided in kits and the enzymes are selected to treat a variety of fabric stains as well as to provide fabric care benefits.
    Type: Application
    Filed: April 14, 2015
    Publication date: August 6, 2015
    Applicant: DANISCO US INC.
    Inventors: DOUGLAS A. DALE, DAVID A. ESTELL, BETH FRYKSDALE, ALFRED L. GAERTNER, KENNETH F. HERFERT, PHILIPPE LAVIELLE, JANET C. NAAB, THOMAS PEKICH
  • Patent number: 9096838
    Abstract: The present invention provides engineered protease variants. In particular, the protease variants comprise combinable mutations at selected surface positions that affect the charge and/or hydrophobicity of the enzyme to enhance at least one desired property of the resulting variant enzyme in a chosen application. Compositions comprising the protease variants, and methods for using the same are also provided.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: August 4, 2015
    Assignee: Danisco US Inc.
    Inventors: Luis G. Cascao-Pereira, David A. Estell, James T. Kellis, Jr.
  • Patent number: 9084734
    Abstract: The present invention provides peptides and supported peptides for treating various diseases and conditions. In particularly preferred embodiments, the present invention provides compositions and methods for personal care. In some embodiments the present invention provides compositions for use in skin and/or hair care, as well as cosmetic compositions. IN alternative particularly preferred embodiments, the present invention provides peptides and supported peptides for treating diseases of the skin, such as rosacea. In some particularly preferred embodiments, the supported peptides of the present invention are anti-VEGF peptides. In alternative particularly preferred embodiments, the anti-VEGF peptides are expressed on a scaffold protein. In some most preferred embodiments, the scaffold protein comprises BBI.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: July 21, 2015
    Assignee: Danisco US Inc.
    Inventors: Katherine D. Collier, Anthony Day, Hans de Nobel, David A. Estell, Grant C. Ganshaw, Marc Kolkman, Raj Lad, Jeffrey V. Miller, Christopher J. Murray, Scott D. Power, Brian Schmidt, Anita van Kimmenade, Gudrun Vogtentanz
  • Publication number: 20150159147
    Abstract: The present invention provides variant subtilisins and compositions comprising at least one variant subtilisin set forth herein, as well as methods for using these variants and compositions. In some embodiments, the present invention provides variant subtilisins suitable for laundry cleaning applications.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 11, 2015
    Applicant: Danisco US Inc.
    Inventors: Joshua R. Basler, Luis G. Cascao-Pereira, David A. Estell, James T. Kellis
  • Publication number: 20150152404
    Abstract: The present invention provides novel protein variants that exhibit reduced immunogenic responses, as compared to the parental proteins. The present invention further provides DNA molecules that encode novel variants, host cells comprising DNA encoding novel variants, as well as methods for making proteins less allergenic. In addition, the present invention provides various compositions that comprise these proteins that are less immunogenic than the wild-type proteins.
    Type: Application
    Filed: January 9, 2015
    Publication date: June 4, 2015
    Inventors: David A. Estell, Fiona A. Harding, Ayrookaran J. Poulose
  • Publication number: 20150152401
    Abstract: Disclosed are compositions and methods relating to variant alpha-amylases. The variant alpha-amylases are useful, for example, for starch liquefaction and saccharification, for cleaning starchy stains in laundry, dishwashing, and other applications, for textile processing (e.g., desizing), in animal feed for improving digestibility, and for baking and brewing.
    Type: Application
    Filed: June 3, 2013
    Publication date: June 4, 2015
    Applicant: DANISCO US INC.
    Inventors: Luis G. Cascao-Pereira, David A. Estell, Marc Kolkman
  • Patent number: 9040278
    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: Grant
    Filed: June 4, 2009
    Date of Patent: May 26, 2015
    Assignee: DANISCO US INC.
    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: 20150141316
    Abstract: Described are variants of alpha-amylase enzymes for use in industrial processes, such as liquefaction of starch. The alpha-amylase variants have increased specific activity allowing the more rapidly reduction of peak viscosity during liquefaction processes. The alpha-amylase is modified by introducing into the amino sequence of a parent Family 13 alpha-amylase polypeptide a mutation at an amino acid residue in the starch-binding groove; wherein the starch-binding groove is formed by amino acid residues in the alpha-helix preceding the first beta-strand in the A domain, the loop between the sixth alpha-helix and the seventh beta-strand in the A domain, the loop between the seventh alpha-helix and the eighth beta-strand in the A domain, and the loop connecting the A domain and the C domain; and wherein the mutation alters the binding of starch to the variant alpha amylase polypeptide compared to the parental alpha amylase polypeptide.
    Type: Application
    Filed: May 24, 2013
    Publication date: May 21, 2015
    Applicant: DANISCO US INC.
    Inventors: Richard R. Bott, Luis G. Cascao-Pereira, David A. Estell, Marc Kolkman, David E. Wildes
  • Publication number: 20150132825
    Abstract: The present invention provides methods for protein engineering and serine protease variants produced there from. Specifically, the present invention provides serine protease variants having one or more substitutions as compared to a reference serine protease. In addition, the present invention provides compositions comprising these serine protease variants. In some embodiments, the present invention provides cleaning compositions comprising at least one of these serine protease variants.
    Type: Application
    Filed: November 10, 2014
    Publication date: May 14, 2015
    Applicant: DANISCO US INC.
    Inventors: Wolfgang Aehle, Luis G. Cascao-Pereira, David A. Estell, Frits Goedegebuur, James T. Kellis, JR., Ayrookaran J. Poulose, Brian F. Schmidt