Patents by Inventor Kirk R. Hash
Kirk R. Hash 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: 20160229783Abstract: A controlled nitric acid process employing oxygen and nitric acid as co-oxidants is used to oxidize organic compounds subject to nitric acid oxidation, to their corresponding carboxylic acids. Oxidation of some carbohydrates by this process can produce one or more of their corresponding acid forms. The process is carried out at moderate temperatures, typically in the range of 20° C. to 45° C. in a closed reactor, with oxygen gas being introduced into the reaction chamber as needed in order to sustain the reaction. Computer controlled reactors allow for careful and reproducible control of reaction parameters. Nitric acid can be recovered by a distillation/evaporation process, or by diffusion dialysis, the aqueous solution made basic with inorganic hydroxide, and the residual inorganic nitrate removed using a filtration (nanofiltration) device.Type: ApplicationFiled: September 8, 2015Publication date: August 11, 2016Inventors: Donald E. Kiely, Kirk R. Hash, SR.
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Publication number: 20150376104Abstract: Compositions which inhibit corrosion and alter the physical properties of concrete (admixtures) are prepared from salt mixtures of hydroxycarboxylic acids, carboxylic acids, and nitric acid. The salt mixtures are prepared by neutralizing acid product mixtures from the oxidation of polyols using nitric acid and oxygen as the oxidizing agents. Nitric acid is removed from the hydroxycarboxylic acids by evaporation and diffusion dialysis.Type: ApplicationFiled: September 10, 2015Publication date: December 31, 2015Inventors: Donald E. Kiely, Kirk R. Hash, Kylie Kramer-Presta, Tyler N. Smith
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Patent number: 9162959Abstract: A controlled nitric acid process employing oxygen and nitric acid as co-oxidants is used to oxidize organic compounds subject to nitric acid oxidation, to their corresponding carboxylic acids. Oxidation of some carbohydrates by this process can produce one or more of their corresponding acid forms. The process is carried out at moderate temperatures, typically in the range of 20° C. to 45° C. in a closed reactor, with oxygen gas being introduced into the reaction chamber as needed in order to sustain the reaction. Computer controlled reactors allow for careful and reproducible control of reaction parameters. Nitric acid can be recovered by a distillation/evaporation process, or by diffusion dialysis, the aqueous solution made basic with inorganic hydroxide, and the residual inorganic nitrate removed using a filtration (nanofiltration) device.Type: GrantFiled: January 8, 2014Date of Patent: October 20, 2015Assignee: The University of MontanaInventors: Donald E. Kiely, Kirk R. Hash, Sr.
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Publication number: 20150191549Abstract: Compositions which inhibit corrosion and alter the physical properties of concrete (admixtures) are prepared from salt mixtures of hydroxycarboxylic acids, carboxylic acids, and nitric acid. The salt mixtures are prepared by neutralizing acid product mixtures from the oxidation of polyols using nitric acid and oxygen as the oxidizing agents. Nitric acid is removed from the hydroxycarboxylic acids by evaporation and diffusion dialysis.Type: ApplicationFiled: December 22, 2014Publication date: July 9, 2015Inventors: Donald E. Kiely, Kirk R. Hash, Kylie Kramer-Presta, Tyler N. Smith
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Patent number: 8961813Abstract: Compositions which inhibit corrosion and alter the physical properties of concrete (admixtures) are prepared from salt mixtures of hydroxycarboxylic acids, carboxylic acids, and nitric acid. The salt mixtures are prepared by neutralizing acid product mixtures from the oxidation of polyols using nitric acid and oxygen as the oxidizing agents. Nitric acid is removed from the hydroxycarboxylic acids by evaporation and diffusion dialysis.Type: GrantFiled: August 16, 2012Date of Patent: February 24, 2015Assignee: The University of MontanaInventors: Donald E. Kiely, Kirk R. Hash, Kylie Kramer-Presta, Tyler N. Smith
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Publication number: 20140256983Abstract: A controlled nitric acid process employing oxygen and nitric acid as co-oxidants is used to oxidize organic compounds subject to nitric acid oxidation, to their corresponding carboxylic acids. Oxidation of some carbohydrates by this process can produce one or more of their corresponding acid forms. The process is carried out at moderate temperatures, typically in the range of 20° C. to 45° C. in a closed reactor, with oxygen gas being introduced into the reaction chamber as needed in order to sustain the reaction. Computer controlled reactors allow for careful and reproducible control of reaction parameters. Nitric acid can be recovered by a distillation/evaporation process, or by diffusion dialysis, the aqueous solution made basic with inorganic hydroxide, and the residual inorganic nitrate removed using a filtration (nanofiltration) device.Type: ApplicationFiled: January 8, 2014Publication date: September 11, 2014Inventors: Donald E. Kiely, Kirk R. Hash, SR.
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Publication number: 20120305832Abstract: Compositions which inhibit corrosion and alter the physical properties of concrete (admixtures) are prepared from salt mixtures of hydroxycarboxylic acids, carboxylic acids, and nitric acid. The salt mixtures are prepared by neutralizing acid product mixtures from the oxidation of polyols using nitric acid and oxygen as the oxidizing agents. Nitric acid is removed from the hydroxycarboxylic acids by evaporation and diffusion dialysis.Type: ApplicationFiled: August 16, 2012Publication date: December 6, 2012Inventors: Donald E. Kiely, Kirk R. Hash, Kylie Kramer-Presta, Tyler N. Smith
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Publication number: 20120035356Abstract: Compositions which inhibit corrosion and alter the physical properties of concrete (admixtures) are prepared from salt mixtures of hydroxycarboxylic acids, carboxylic acids, and nitric acid. The salt mixtures are prepared by neutralizing acid product mixtures from the oxidation of polyols using nitric acid and oxygen as the oxidizing agents. Nitric acid is removed from the hydroxycarboxylic acids by evaporation and diffusion dialysis.Type: ApplicationFiled: October 20, 2011Publication date: February 9, 2012Inventors: Donald E. Kiely, Kirk R. Hash, Kylie Kramer-Presta, Tyler Smith
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Publication number: 20100191002Abstract: A controlled nitric acid process employing oxygen and nitric acid as co-oxidants is used to oxidize organic compounds subject to nitric acid oxidation, to their corresponding carboxylic acids. Oxidation of some carbohydrates by this process can produce one or more of their corresponding acid forms. The process is carried out at moderate temperatures, typically in the range of 20° C. to 45° C. in a closed reactor, with oxygen gas being introduced into the reaction chamber as needed in order to sustain the reaction. Computer controlled reactors allow for careful and reproducible control of reaction parameters. Nitric acid can be recovered by a distillation/evaporation process, or by diffusion dialysis, the aqueous solution made basic with inorganic hydroxide, and the residual inorganic nitrate removed using a filtration (nanofiltration) device.Type: ApplicationFiled: April 2, 2010Publication date: July 29, 2010Inventors: Donald E. Kiely, Kirk R. Hash, SR.
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Patent number: 7692041Abstract: A controlled nitric acid process employing oxygen and nitric acid as co-oxidants is used to oxidize organic compounds subject to nitric acid oxidation, to their corresponding carboxylic acids. Oxidation of some carbohydrates by this process can produce one or more of their corresponding acid forms. The process is carried out at moderate temperatures, typically in the range of 20° C. to 45° C. in a closed reactor, with oxygen gas being introduced into the reaction chamber as needed in order to sustain the reaction. Computer controlled reactors allow for careful and reproducible control of reaction parameters. Nitric acid can be recovered by a distillation/evaporation process, or by diffusion dialysis, the aqueous solution made basic with inorganic hydroxide, and the residual inorganic nitrate removed using a filtration (nanofiltration) device.Type: GrantFiled: August 6, 2007Date of Patent: April 6, 2010Assignee: The University of MontanaInventors: Donald E. Kiely, Kirk R. Hash, Sr.
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Publication number: 20090250653Abstract: Compositions which inhibit corrosion and alter the physical properties of concrete (admixtures) are prepared from salt mixtures of hydroxycarboxylic acids, carboxylic acids, and nitric acid. The salt mixtures are prepared by neutralizing acid product mixtures from the oxidation of polyols using nitric acid and oxygen as the oxidizing agents. Nitric acid is removed from the hydroxycarboxylic acids by evaporation and diffusion dialysis.Type: ApplicationFiled: April 10, 2009Publication date: October 8, 2009Inventors: Donald E. Kiely, Kirk R. Hash, Kylie Kramer-Presta, Tyler N. Smith
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Publication number: 20080033205Abstract: A controlled nitric acid process employing oxygen and nitric acid as co-oxidants is used to oxidize organic compounds subject to nitric acid oxidation, to their corresponding carboxylic acids. Oxidation of some carbohydrates by this process can produce one or more of their corresponding acid forms. The process is carried out at moderate temperatures, typically in the range of 20° C. to 45° C. in a closed reactor, with oxygen gas being introduced into the reaction chamber as needed in order to sustain the reaction. Computer controlled reactors allow for careful and reproducible control of reaction parameters. Nitric acid can be recovered by a distillation/evaporation process, or by diffusion dialysis, the aqueous solution made basic with inorganic hydroxide, and the residual inorganic nitrate removed using a filtration (nanofiltration) device.Type: ApplicationFiled: August 6, 2007Publication date: February 7, 2008Inventors: Donald E. Kiely, Kirk R. Hash
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Publication number: 20040049026Abstract: An entirely aqueous method for concentrating beta-glucan from a beta-glucan source, such as milled cereal bran, grain or distiller's dried grain. The method comprises providing an alkaline aqueous extract of a beta-glucan source; acidifying or neutralizing the extract and heating the extract to between about 60° C. and 100° C.; cooling the extract, whereby a flocculate is formed; acidifying the cooled extract if the extract was neutralized; and removing the flocculate from the aqueous solution to form an intermediate solution. The intermediate solution may be subjected to ultrafiltration for further purification of beta-glucan, or may be evaporated, resulting in formation of a solid film enriched in beta-glucan. Beta-glucan has cholesterol-lowering properties and is a topical immunostimulant.Type: ApplicationFiled: September 11, 2003Publication date: March 11, 2004Inventors: Richard C. Potter, Philip A. Fisher, Kirk R. Hash, John D. Neidt
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Patent number: 6624300Abstract: An entirely aqueous method for concentrating beta-glucan from a beta-glucan source, such as milled cereal bran, grain or distiller's dried grain. The method comprises providing an alkaline aqueous extract of a beta-glucan source; acidifying or neutralizing the extract and heating the extract to between about 60° C. and 100° C.; cooling the extract, whereby a flocculate is formed; acidifying the cooled extract if the extract was neutralized; and removing the flocculate from the aqueous solution to form an intermediate solution. The intermediate solution may be subjected to ultrafiltration for further purification of beta-glucan, or may be evaporated, resulting in formation of a solid film enriched in beta-glucan. Beta-glucan has cholesterol-lowering properties and is a topical immunostimulant.Type: GrantFiled: August 2, 2001Date of Patent: September 23, 2003Assignee: Nurture, Inc.Inventors: Richard C. Potter, Philip A. Fisher, Kirk R. Hash, Sr., John D. Neidt
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Patent number: 6485945Abstract: An entirely aqueous method for concentrating water soluble polysaccharides having molecular weights of at least about 50 kDa. The method comprises evaporating a water soluble polysaccharide-containing solution until surface film formation occurs, and harvesting the resulting film which is enriched in the polysaccharide. The polysaccharide may be of plant or animal origin, and includes polysaccharides such as guar gum, xanthan gum and pectin.Type: GrantFiled: November 19, 1999Date of Patent: November 26, 2002Assignee: Nurture, Inc.Inventors: Richard C. Potter, Philip A. Fisher, Kirk R. Hash, Sr., John D. Neidt
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Publication number: 20020016454Abstract: An entirely aqueous method for concentrating beta-glucan from a beta-glucan source, such as milled cereal bran, grain or distiller's dried grain. The method comprises providing an alkaline aqueous extract of a beta-glucan source; acidifying or neutralizing the extract and heating the extract to between about 60° C. and 100° C.; cooling the extract, whereby a flocculate is formed; acidifying the cooled extract if the extract was neutralized; and removing the flocculate from the aqueous solution to form an intermediate solution. The intermediate solution may be subjected to ultrafiltration for further purification of beta-glucan, or may be evaporated, resulting in formation of a solid film enriched in beta-glucan. Beta-glucan has cholesterol-lowering properties and is a topical immunostimulant.Type: ApplicationFiled: August 2, 2001Publication date: February 7, 2002Inventors: Richard C. Potter, Philip A. Fisher, Kirk R. Hash, John D. Neidt
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Patent number: 6323338Abstract: An entirely aqueous method for concentrating beta-glucan from a beta-glucan source, such as milled cereal bran, grain or distiller's dried grain. The method comprises providing an alkaline aqueous extract of a beta-glucan source; acidifying or neutralizing the extract and heating the extract to between about 60° C. and 100° C.; cooling the extract, whereby a flocculate is formed; acidifing the cooled extract if the extract was neutralized; and removing the flocculate from the aqueous solution to form an intermediate solution. The intermediate solution may be subjected to ultrafiltration for further purification of beta-glucan, or may be evaporated, resulting in formation of a solid film enriched in beta-glucan. Beta-glucan has cholesterol-lowering properties and is a topical immunostimulant.Type: GrantFiled: February 17, 1999Date of Patent: November 27, 2001Assignee: Nurture, Inc.Inventors: Richard C. Potter, Philip A. Fisher, Kirk R. Hash, Sr., John D. Neidt