Patents by Inventor Christopher C. Barnett

Christopher C. Barnett 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: 20150344858
    Abstract: The present compositions and methods relate to an endo-beta-mannanase cloned from Bacillus lentus, polynucleotides encoding the endo-beta-mannanase, and methods of use thereof. Formulations containing the endo-beta-mannanase are highly suitable for use as detergents.
    Type: Application
    Filed: December 17, 2013
    Publication date: December 3, 2015
    Applicant: DANISCO US INC.
    Inventors: CHRISTOPHER C. BARNETT, CONNIE DEMASO, ERIC DODGE, KATHLEEN A. HARRIS, RACHEL B. QI
  • Publication number: 20150118211
    Abstract: The invention provides methods, compositions, and kits for removal of biofilms from surfaces. The methods described herein comprise simultaneous or sequential application of a perhydrolase enzyme and a mixture of other enzymes, such as proteases, glucanases, esterases, mannanases, phospholipases, cellulases, and/or amylases, to a biofilm on a surface, to effect removal of the biofilm.
    Type: Application
    Filed: November 1, 2013
    Publication date: April 30, 2015
    Applicant: Danisco US Inc.
    Inventors: Christopher C. Barnett, Manoj Kumar, Gregory M. Whited
  • Patent number: 8883485
    Abstract: Described are compositions and methods for the decolorization of dye molecules in an aqueous medium using enzymatically-generated peracid.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: November 11, 2014
    Assignee: Danisco US Inc.
    Inventors: Christopher C. Barnett, Rafael F. Sala
  • Patent number: 8597927
    Abstract: The invention provides methods, compositions, and kits for removal of biofilms from surfaces. The methods described herein comprise simultaneous or sequential application of a perhydrolase enzyme and a mixture of other enzymes, such as proteases, glucanases, esterases, mannanases, phospholipases, cellulases, and/or amylases, to a biofilm on a surface, to effect removal of the biofilm.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: December 3, 2013
    Assignee: Danisco US Inc.
    Inventors: Christopher C. Barnett, Manoj Kumar, Gregory M. Whited
  • Publication number: 20120149269
    Abstract: Described are compositions and methods for the enzymatic abrading and color modification of dyed textiles. The compositions and methods permit a textile manufacturer to obtain a wide variety of different textile finishes and colors using exclusively enzymatic methods.
    Type: Application
    Filed: August 26, 2010
    Publication date: June 14, 2012
    Applicant: Danisco US Inc.
    Inventors: Rafael F. Sala, Wayne Ashton, Piera M. Pericu, Christopher C. Barnett
  • Publication number: 20120088291
    Abstract: A method for adjusting the colour tone of dyed cellulosic textile fibre material comprising contacting said textile material with an enzymatic textile treatment composition comprising (i) a perhydrolase enzyme, (ii) an ester substrate for said perhydrolase enzyme, and (iii) a hydrogen peroxide source, for a length of time and under conditions suitable to permit measurable brightening of the textile material.
    Type: Application
    Filed: May 27, 2010
    Publication date: April 12, 2012
    Applicant: Huntsman International LLC
    Inventors: Lode Vermeersch, Erwin Redling, Wayne Ashton, Christopher C. Barnett, Andreas Jacobus Johanna krouwer, Piera Pericu, Rafael F. Sala
  • Publication number: 20120024783
    Abstract: Described are compositions and methods for the decolorization of dye molecules in an aqueous medium using enzymatically-generated peracid.
    Type: Application
    Filed: March 2, 2010
    Publication date: February 2, 2012
    Applicant: Danisco US Inc.
    Inventors: Christopher C. Barnett, Rafael F. Sala
  • Publication number: 20110195059
    Abstract: The invention provides methods, compositions, and kits for removal of biofilms from surfaces. The methods described herein comprise simultaneous or sequential application of a perhydrolase enzyme and a mixture of other enzymes, such as proteases, glucanases, esterases, mannanases, phospholipases, cellulases, and/or amylases, to a biofilm on a surface, to effect removal of the biofilm.
    Type: Application
    Filed: December 16, 2008
    Publication date: August 11, 2011
    Applicant: DANISCO US INC.
    Inventors: Christopher C. Barnett, Manoj Kumar, Gregory M. Whited
  • Publication number: 20100189707
    Abstract: The present invention provides stable compositions comprising a perhydrolase enzyme, a hydrogen peroxide source, and an ester substrate that efficiently generate aqueous peracid solutions. The generated peracid solutions are suitable for decontaminating and/or sanitizing a wide range of materials and equipment contaminated with pathogens or toxic chemicals. In one preferred embodiment, the stable composition comprises an acyl transferase enzyme, sodium percarbonate, and propylene glycol diacetate, and is stable for 30 days or longer. Upon addition to water, the composition is activated and generates an aqueous solution with a high ratio of peracetic acid to acetic acid.
    Type: Application
    Filed: May 5, 2008
    Publication date: July 29, 2010
    Inventor: Christopher C. Barnett
  • Patent number: 6297037
    Abstract: Novel alpha-amylase mutants derived from the DNA sequences of naturally occurring or recombinant alpha-amylases are disclosed. The mutant alpha-amylases, in general, are obtained by in vitro modifications of a precursor DNA sequence encoding the naturally occurring or recombinant alpha-amylase to generate the substitution (replacement) or deletion of one or more oxidizable amino acid residues in the amino acid sequence of a precursor alpha-amylase. Such mutant alpha-amylases have altered oxidative stability and/or altered pH performance profiles and/or altered thermal stability as compared to the precursor. Also disclosed are detergent and starch liquefaction compositions comprising the mutant amylases, as well as methods of using the mutant amylases.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: October 2, 2001
    Inventors: Christopher C. Barnett, Colin Mitchinson, Scott D. Power, Carol A. Requadt
  • Patent number: 6103464
    Abstract: A process for expressing extracellular .beta.-glucosidase in a filamentous fungus by expressing a fungal DNA sequence encoding enhanced, deleted or altered .beta.-glucosidase in a recombinant host microorganism is disclosed. Recombinant fungal cellulase compositions containing enhanced, deleted or altered expression of .beta.-glucosidase is also disclosed.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: August 15, 2000
    Assignee: Genencor International, Inc.
    Inventors: Timothy Fowler, Christopher C. Barnett, Sharon Shoemaker
  • Patent number: 6022725
    Abstract: A process for expressing extracellular .beta.-glucosidase in a filamentous fungus by expressing a fungal DNA sequence encoding enhanced, deleted or altered .beta.-glucosidase in a recombinant host microorganism is disclosed. Recombinant fungal cellulase compositions containing enhanced, deleted or altered expression of .beta.-glucosidase is also disclosed.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 8, 2000
    Assignee: Genencor International, Inc.
    Inventors: Timothy Fowler, Christopher C. Barnett, Sharon Shoemaker
  • Patent number: 5997913
    Abstract: A process for expressing extracellular .beta.-glucosidase in a filamentous fungus by expressing a fungal DNA sequence encoding enhanced, deleted or altered .beta.-glucosidase in a recombinant host microorganism is disclosed. Recombinant fungal cellulase compositions containing enhanced, deleted or altered expression of .beta.-glucosidase is also disclosed.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 7, 1999
    Assignee: Genencor International, Inc.
    Inventors: Timothy Fowler, Christopher C. Barnett, Sharon Shoemaker
  • Patent number: 5849549
    Abstract: Novel alpha-amylase mutants derived from the DNA sequences of naturally occurring or recombinant alpha-amylases are disclosed. The mutant alpha-amylases, in general, are obtained by in vitro modifications of a precursor DNA sequence encoding the naturally occurring or recombinant alpha-amylase to generate the substitution (replacement) or deletion of one or more oxidizable amino acid residues in the amino acid sequence of a precursor alpha-amylase. Such mutant alpha-amylases have altered oxidative stability and/or altered pH performance profiles and/or altered thermal stability as compared to the precursor. Also disclosed are detergent and starch liquefaction compositions comprising the mutant amylases, as well as methods of using the mutant amylases.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 15, 1998
    Assignee: Genencor International
    Inventors: Christopher C. Barnett, Leif P. Solheim, Colin Mitchinson, Scott D. Power, Carol A. Requadt
  • Patent number: 5824532
    Abstract: Novel alpha-amylase mutants derived from the DNA sequences of naturally occurring or recombinant alpha-amylases are disclosed. The mutant alpha-amylases, in general, are obtained by in vitro modifications of a precursor DNA sequence encoding the naturally occurring or recombinant alpha-amylase to generate the substitution (replacement) or deletion of one or more oxidizable amino acid residues in the amino acid sequence of a precursor alpha-amylase. Such mutant alpha-amylases have altered oxidative stability and/or altered pH performance profiles and/or altered thermal stability as compared to the precursor. Also disclosed are detergent and starch liquefaction compositions comprising the mutant amylases, as well as methods of using the mutant amylases.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 20, 1998
    Assignee: Genencor International, Inc.
    Inventors: Christopher C. Barnett, Colin Mitchinson, Scott D. Power, Carol A. Requadt