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).
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Publication number: 20150344858Abstract: 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: ApplicationFiled: December 17, 2013Publication date: December 3, 2015Applicant: DANISCO US INC.Inventors: CHRISTOPHER C. BARNETT, CONNIE DEMASO, ERIC DODGE, KATHLEEN A. HARRIS, RACHEL B. QI
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Publication number: 20150118211Abstract: 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: ApplicationFiled: November 1, 2013Publication date: April 30, 2015Applicant: Danisco US Inc.Inventors: Christopher C. Barnett, Manoj Kumar, Gregory M. Whited
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Patent number: 8883485Abstract: Described are compositions and methods for the decolorization of dye molecules in an aqueous medium using enzymatically-generated peracid.Type: GrantFiled: March 2, 2010Date of Patent: November 11, 2014Assignee: Danisco US Inc.Inventors: Christopher C. Barnett, Rafael F. Sala
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Patent number: 8597927Abstract: 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: GrantFiled: December 16, 2008Date of Patent: December 3, 2013Assignee: Danisco US Inc.Inventors: Christopher C. Barnett, Manoj Kumar, Gregory M. Whited
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Publication number: 20120149269Abstract: 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: ApplicationFiled: August 26, 2010Publication date: June 14, 2012Applicant: Danisco US Inc.Inventors: Rafael F. Sala, Wayne Ashton, Piera M. Pericu, Christopher C. Barnett
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Publication number: 20120088291Abstract: 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: ApplicationFiled: May 27, 2010Publication date: April 12, 2012Applicant: Huntsman International LLCInventors: Lode Vermeersch, Erwin Redling, Wayne Ashton, Christopher C. Barnett, Andreas Jacobus Johanna krouwer, Piera Pericu, Rafael F. Sala
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Publication number: 20120024783Abstract: Described are compositions and methods for the decolorization of dye molecules in an aqueous medium using enzymatically-generated peracid.Type: ApplicationFiled: March 2, 2010Publication date: February 2, 2012Applicant: Danisco US Inc.Inventors: Christopher C. Barnett, Rafael F. Sala
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Publication number: 20110195059Abstract: 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: ApplicationFiled: December 16, 2008Publication date: August 11, 2011Applicant: DANISCO US INC.Inventors: Christopher C. Barnett, Manoj Kumar, Gregory M. Whited
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Publication number: 20100189707Abstract: 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: ApplicationFiled: May 5, 2008Publication date: July 29, 2010Inventor: Christopher C. Barnett
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Patent number: 6297037Abstract: 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: GrantFiled: February 10, 1994Date of Patent: October 2, 2001Inventors: Christopher C. Barnett, Colin Mitchinson, Scott D. Power, Carol A. Requadt
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Patent number: 6103464Abstract: 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: GrantFiled: June 5, 1995Date of Patent: August 15, 2000Assignee: Genencor International, Inc.Inventors: Timothy Fowler, Christopher C. Barnett, Sharon Shoemaker
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Patent number: 6022725Abstract: 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: GrantFiled: June 5, 1995Date of Patent: February 8, 2000Assignee: Genencor International, Inc.Inventors: Timothy Fowler, Christopher C. Barnett, Sharon Shoemaker
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Patent number: 5997913Abstract: 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: GrantFiled: June 5, 1995Date of Patent: December 7, 1999Assignee: Genencor International, Inc.Inventors: Timothy Fowler, Christopher C. Barnett, Sharon Shoemaker
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Patent number: 5849549Abstract: 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: GrantFiled: June 6, 1995Date of Patent: December 15, 1998Assignee: Genencor InternationalInventors: Christopher C. Barnett, Leif P. Solheim, Colin Mitchinson, Scott D. Power, Carol A. Requadt
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Patent number: 5824532Abstract: 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: GrantFiled: June 6, 1995Date of Patent: October 20, 1998Assignee: Genencor International, Inc.Inventors: Christopher C. Barnett, Colin Mitchinson, Scott D. Power, Carol A. Requadt