Patents by Inventor David George DiPietro

David George DiPietro 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: 8486380
    Abstract: Disclosed herein are multi-component formulations for enzymatically producing aqueous solutions of peroxycarboxylic acids suitable for use in, e.g., disinfectant and/or bleaching applications. The multi-component peroxycarboxylic acid formulations comprise at least one carbohydrate esterase family 7 enzyme having perhydrolytic activity.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: July 16, 2013
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Dicosimo, Arie Ben-Bassat, William R. Cahill, David George Dipietro, Eugenia Costa Hann, Mark S. Payne, Richard Alan Reynolds, Raymond Richard Zolandz
  • Publication number: 20130004479
    Abstract: Disclosed herein are multi-component formulations for enzymatically producing aqueous solutions of peroxycarboxylic acids suitable for use in, e.g., disinfectant and/or bleaching applications. The multi-component peroxycarboxylic acid formulations comprise at least one carbohydrate esterase family 7 enzyme having perhydrolytic activity.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 3, 2013
    Inventors: Robert Dicosimo, Arie Ben-Bassat, William R. Cahill, David George Dipietro, Eugenia Costa Hann, Mark S. Payne, Richard Alan Reynolds, Raymond Richard Zolandz
  • Patent number: 8337905
    Abstract: Disclosed herein are multi-component peroxycarboxylic acid generation systems for enzymatically producing aqueous formulations of peroxycarboxylic acids suitable for use in, e.g., disinfectant and/or bleaching applications. The multi-component peroxycarboxylic acid generation systems comprise at least one carbohydrate esterase family 7 enzyme having perhydrolytic activity.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: December 25, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Dicosimo, Arie Ben-Bassat, William R. Cahill, David George Dipietro, Eugenia Costa Hann, Mark S. Payne, Richard Alan Reynolds, Raymond Richard Zolandz
  • Patent number: 8304218
    Abstract: Disclosed herein are two-component enzymatic peracid generation systems and methods of using such systems wherein the first component comprises a formulation of at least one enzyme catalyst having perhydrolysis activity, a carboxylic acid ester substrate, and a cosolvent and wherein the second component comprises a source of peroxygen in water. The two components are combined to produce an aqueous peracid formulation useful as, e.g., a disinfecting or bleaching agent. Specifically, organic cosolvents are used to control the viscosity of a substrate-containing component and to enhance the solubility of the substrate in an aqueous reaction formulation without causing substantial loss of perhydrolytic activity of the enzyme catalyst.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: November 6, 2012
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Robert Dicosimo, William R. Cahill, David George Dipietro, Eugenia Costa Hann, Richard Alan Reynolds
  • Patent number: 8293221
    Abstract: Disclosed herein are multi-component formulations for enzymatically producing aqueous solutions of peroxycarboxylic acids suitable for use in, e.g., disinfectant and/or bleaching applications. The multi-component peroxycarboxylic acid formulations comprise at least one carbohydrate esterase family 7 enzyme having perhydrolytic activity.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: October 23, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Dicosimo, Arie Ben-Bassat, William R. Cahill, David George Dipietro, Eugenia Costa Hann, Mark S. Payne, Richard Alan Reynolds, Raymond Richard Zolandz
  • Publication number: 20120094342
    Abstract: Disclosed herein are two-component enzymatic peracid generation systems and methods of using such systems wherein the first component comprises a formulation of at least one enzyme catalyst having perhydrolysis activity, a carboxylic acid ester substrate, and a cosolvent and wherein the second component comprises a source of peroxygen in water. The two components are combined to produce an aqueous peracid formulation useful as, e.g., a disinfecting or bleaching agent. Specifically, organic cosolvents are used to control the viscosity of a substrate-containing component and to enhance the solubility of the substrate in an aqueous reaction formulation without causing substantial loss of perhydrolytic activity of the enzyme catalyst.
    Type: Application
    Filed: December 19, 2011
    Publication date: April 19, 2012
    Inventors: Robert Dicosimo, William R. Cahill, David George Dipietro, Eugenia Costa Hann, Richard Alan Reynolds
  • Patent number: 8105810
    Abstract: Disclosed herein are two-component enzymatic peracid generation systems and methods of using such systems wherein the first component comprises a formulation of at least one enzyme catalyst having perhydrolysis activity, a carboxylic acid ester substrate, and a cosolvent and wherein the second component comprises a source of peroxygen in water. The two components are combined to produce an aqueous peracid formulation useful as, e.g., a disinfecting or bleaching agent. Specifically, organic cosolvents are used to control the viscosity of a substrate-containing component and to enhance the solubility of the substrate in an aqueous reaction formulation without causing substantial loss of perhydrolytic activity of the enzyme catalyst.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: January 31, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert DiCosimo, William R. Cahill, David George DiPietro, Eugenia Costa Hann, Richard Alan Reynolds
  • Publication number: 20100086510
    Abstract: Disclosed herein are multi-component formulations for enzymatically producing aqueous solutions of peroxycarboxylic acids suitable for use in, e.g., disinfectant and/or bleaching applications. The multi-component peroxycarboxylic acid formulations comprise at least one carbohydrate esterase family 7 enzyme having perhydrolytic activity.
    Type: Application
    Filed: October 1, 2009
    Publication date: April 8, 2010
    Inventors: Robert DiCosimo, Arie Ben-Bassat, William R. Cahill, David George Dipietro, Eugenia Costa Hann, Marks S. Payne, Richard Alan Reynolds, Raymond Richard Zolandz
  • Publication number: 20100087528
    Abstract: Disclosed herein are two-component enzymatic peracid generation systems and methods of using such systems wherein the first component comprises a formulation of at least one enzyme catalyst having perhydrolysis activity, a carboxylic acid ester substrate, and a cosolvent and wherein the second component comprises a source of peroxygen in water. The two components are combined to produce an aqueous peracid formulation useful as, e.g., a disinfecting or bleaching agent. Specifically, organic cosolvents are used to control the viscosity of a substrate-containing component and to enhance the solubility of the substrate in an aqueous reaction formulation without causing substantial loss of perhydrolytic activity of the enzyme catalyst.
    Type: Application
    Filed: October 1, 2009
    Publication date: April 8, 2010
    Inventors: Robert DiCosimo, William R. Cahill, David George Dipietro, Eugenia Costa Hann, Richard Alan Reynolds
  • Publication number: 20100086621
    Abstract: Disclosed herein are multi-component peroxycarboxylic acid generation systems for enzymatically producing aqueous formulations of peroxycarboxylic acids suitable for use in, e.g., disinfectant and/or bleaching applications. The multi-component peroxycarboxylic acid generation systems comprise at least one carbohydrate esterase family 7 enzyme having perhydrolytic activity.
    Type: Application
    Filed: October 1, 2009
    Publication date: April 8, 2010
    Inventors: Robert DiCosimo, Arie Ben-Bassat, William R. Cahill, David George Dipietro, Eugenia Costa Hann, Mark S. Payne, Richard Alan Reynolds, Raymond Richard Zolandz