Patents by Inventor Scott Payne
Scott Payne 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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Patent number: 8501447Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: GrantFiled: October 22, 2012Date of Patent: August 6, 2013Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
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Patent number: 8486679Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: GrantFiled: October 22, 2012Date of Patent: July 16, 2013Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
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Patent number: 8450091Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: GrantFiled: March 23, 2011Date of Patent: May 28, 2013Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert Dicosimo, John Edward Gavagan, Mark Scott Payne
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Patent number: 8445242Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: GrantFiled: March 23, 2011Date of Patent: May 21, 2013Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert DiCosimo, John Edward Gavagan, Mark Scott Payne
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Patent number: 8399234Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: GrantFiled: December 16, 2011Date of Patent: March 19, 2013Assignee: E.I. du Pont de Nemours and CompanyInventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
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Patent number: 8394617Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: GrantFiled: December 16, 2011Date of Patent: March 12, 2013Assignee: E.I. du Pont de Nemours and CompanyInventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
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Patent number: 8394616Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: GrantFiled: December 16, 2011Date of Patent: March 12, 2013Assignee: E.I. du Pont de Nemours and CompanyInventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
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Patent number: 8389257Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: GrantFiled: December 16, 2011Date of Patent: March 5, 2013Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert Dicosimo, Mark Scott Payne, John Edward Gavagan
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Patent number: 8389255Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: GrantFiled: March 23, 2011Date of Patent: March 5, 2013Assignee: E.I. de Pont de Nemours and CompanyInventors: Robert Dicosimo, John Edward Gavagan, Mark Scott Payne
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Patent number: 8389259Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: GrantFiled: December 16, 2011Date of Patent: March 5, 2013Assignee: E.I. du Pont de Nemours and CompanyInventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
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Patent number: 8389254Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: GrantFiled: March 23, 2011Date of Patent: March 5, 2013Assignee: E.I. du Pont de Nemours and CompanyInventors: Robert Dicosimo, John Edward Gavagan, Mark Scott Payne
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Patent number: 8389256Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: GrantFiled: December 16, 2011Date of Patent: March 5, 2013Assignee: E.I. du Pont de Nemours and CompanyInventors: Robert Dicosimo, Mark Scott Payne, John Edward Gavagan
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Patent number: 8389575Abstract: A process is provided for producing target concentrations of peroxycarboxylic acids from carboxylic acid esters. More specifically, carboxylic acid esters are reacted with an inorganic peroxide, such as hydrogen peroxide, in the presence of an enzyme catalyst having perhydrolysis activity under conditions where control of reaction pH by selection of buffer concentration and concentration of perhydrolase and reactants produces a targeted concentration of peroxycarboxylic acids. The present perhydrolase catalysts are classified as members of the carbohydrate esterase family 7 (CE-7) based on the conserved structural features. Further, disinfectant formulations comprising the peracids produced by the processes described herein are provided, as are corresponding methods of use.Type: GrantFiled: January 20, 2012Date of Patent: March 5, 2013Assignee: E.I. du Pont de Nemours and CompanyInventors: Robert DiCosimo, Mark Scott Payne, Eugenia Costa Hann
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Patent number: 8389258Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: GrantFiled: December 16, 2011Date of Patent: March 5, 2013Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
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Patent number: 8389260Abstract: An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritime acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.Type: GrantFiled: December 16, 2011Date of Patent: March 5, 2013Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert DiCosimo, Mark Scott Payne, John Edward Gavagan
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Patent number: 8377182Abstract: Gas anti-diffusion assemblies are designed to slow, but not to block, the diffusion of a gas from or to an enclosed space to or from an open space, e.g., to slow the diffusion of air into or out of the housing for a hard disk drive from or out to the exterior of the housing. The assemblies typically have a laminate structure, i.e., are constructed of individual layers adhered or otherwise joined to one another in a stacked arrangement. The assemblies typically comprise alternating layers of polymeric film and adhesive with a mesh layer sandwiched or otherwise positioned within the assembly, and optionally comprises one or both of a filter layer and an absorbent layer.Type: GrantFiled: May 14, 2010Date of Patent: February 19, 2013Assignee: Brady Worldwide, Inc.Inventors: Zuojiang Li, Scott Payne
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Patent number: 8329441Abstract: A process is provided for producing peroxycarboxylic acids from carboxylic acid esters. More specifically, carboxylic acid esters are reacted with an inorganic peroxide, such as hydrogen peroxide, in the presence of an enzyme catalyst having perhydrolysis activity. The present perhydrolase catalysts are classified as members of the carbohydrate esterase family 7 (CE-7) based on the conserved structural features. Further, disinfectant formulations comprising the peracids produced by the processes described herein are provided.Type: GrantFiled: April 15, 2011Date of Patent: December 11, 2012Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert Dicosimo, John Edward Gavagan, Mark Scott Payne, Frederick B. Cooling, III
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Patent number: 8298808Abstract: A process is provided for producing peroxycarboxylic acids from carboxylic acid esters. More specifically, carboxylic acid esters are reacted with an inorganic peroxide, such as hydrogen peroxide, in the presence of an enzyme catalyst having perhydrolysis activity. The present perhydrolase catalysts are classified as members of the carbohydrate esterase family 7 (CE-7) based on the conserved structural features. Further, disinfectant formulations comprising the peracids produced by the processes described herein are provided.Type: GrantFiled: July 2, 2009Date of Patent: October 30, 2012Assignee: E.I. du Pont de Nemours and CompanyInventors: Robert DiCosimo, John Edward Gavagan, Mark Scott Payne, Frederick B. Cooling
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Patent number: 8293792Abstract: A process is provided for producing peroxycarboxylic acids from carboxylic acid esters. More specifically, carboxylic acid esters are reacted with an inorganic peroxide, such as hydrogen peroxide, in the presence of an enzyme catalyst having perhydrolysis activity. The present perhydrolase catalysts are classified as members of the carbohydrate esterase family 7 (CE-7) based on the conserved structural features. Further, disinfectant formulations comprising the peracids produced by the processes described herein are provided.Type: GrantFiled: March 11, 2010Date of Patent: October 23, 2012Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert Dicosimo, John Edward Gavagan, Mark Scott Payne, Frederick B. Cooling, III
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Patent number: 8273563Abstract: A process is provided for producing peroxycarboxylic acids from carboxylic acid esters. More specifically, carboxylic acid esters are reacted with an inorganic peroxide, such as hydrogen peroxide, in the presence of an enzyme catalyst having perhydrolysis activity. The present perhydrolase catalysts are classified as members of the carbohydrate esterase family 7 (CE-7) based on the conserved structural features. Further, disinfectant formulations comprising the peracids produced by the processes described herein are provided.Type: GrantFiled: July 2, 2009Date of Patent: September 25, 2012Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert DiCosimo, John Edward Gavagan, Mark Scott Payne, Frederick B. Cooling