Patents by Inventor Stephanie Edmunds
Stephanie Edmunds 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: 11377588Abstract: A well treatment fluid composition that includes a tetrakis(hydroxyorgano)phosphonium salt and 1,3-dimethylol-5,5-dimethylhydantoin. Methods for preparing a well treatment fluid composition and treating a subterranean formation are also presented.Type: GrantFiled: March 1, 2021Date of Patent: July 5, 2022Assignee: SOLVAY USA INC.Inventors: Christopher Raymond Jones, Stephanie Edmunds, Jean C. Molina
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Publication number: 20210179927Abstract: A well treatment fluid composition that includes a tetrakis(hydroxyorgano)phosphonium salt and 1,3-dimethylol-5,5-dimethylhydantoin. Methods for preparing a well treatment fluid composition and treating a subterranean formation are also presented.Type: ApplicationFiled: March 1, 2021Publication date: June 17, 2021Applicant: SOLVAY USA INC.Inventors: Christopher Raymond Jones, Stephanie Edmunds, Jean C. Molina
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Patent number: 10968384Abstract: A well treatment fluid composition that includes a tetrakis(hydroxyorgano)phosphonium salt and 1,3-dimethylol-5,5-dimethylhydantoin. Methods for preparing a well treatment fluid composition and treating a subterranean formation are also presented.Type: GrantFiled: December 6, 2016Date of Patent: April 6, 2021Assignee: SOLVAY USA INC.Inventors: Christopher Raymond Jones, Stéphanie Edmunds, Jean C. Molina
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Patent number: 10806147Abstract: A method for reducing the effects of biological contamination in a hydrocarbon-containing system comprising the steps of continuously adding a formulation comprising tris(hydroxymethyl)phosphine or a tetrakis(hydroxymethyl)phosphonium salt to the system for one day or more; monitoring the efficacy of the continuous treatment by an assessment of the extent to which there is any effect on the environment that is attributable to metabolic activity of active microbes present in the system; wherein the tris(hydroxymethyl)phosphine or tetrakis(hydroxymethyl)phosphonium salt is added at a concentration of from 1 to 30 ppm based on the total volume of aqueous fluid added to the system, and wherein the formulation is added to the system at a stage to minimize incompatibility with any other chemicals that are added to the aqueous fluid.Type: GrantFiled: February 29, 2012Date of Patent: October 20, 2020Assignee: RHODIA OPERATIONSInventors: Chris Jones, Stephanie Edmunds, Gareth Collins
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Publication number: 20200032125Abstract: A process for simultaneously dissolving iron sulphide and killing or inhibiting bacteria comprising the steps of continuously adding or shot dosing to a hydrocarbon-containing system, an aqueous fluid comprising a formulation comprising tris(hydroxymethyl) phosphine or tetrakis (hydroxymethyl) phosphonium salt.Type: ApplicationFiled: October 4, 2019Publication date: January 30, 2020Applicant: RHODIA OPERATIONSInventors: Chris Jones, Stéphanie Edmunds, Alan Christopher Fellows, Gareth Collins
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Publication number: 20180044571Abstract: A process for simultaneously dissolving iron sulphide and killing or inhibiting bacteria comprising the steps of continuously adding or shot dosing to a hydrocarbon-containing system, an aqueous fluid comprising a formulation comprising tris(hydroxymethyl) phosphine or tetrakis (hydroxymethyl) phosphonium salt.Type: ApplicationFiled: August 9, 2017Publication date: February 15, 2018Applicant: RHODIA OPERATIONSInventors: Chris JONES, Stéphanie EDMUNDS, Alan Christopher FELLOWS, Gareth COLLINS
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Publication number: 20170158949Abstract: A well treatment fluid composition that includes a tetrakis(hydroxyorgano)phosphonium salt and 1,3-dimethylol-5,5-dimethylhydantoin. Methods for preparing a well treatment fluid composition and treating a subterranean formation are also presented.Type: ApplicationFiled: December 6, 2016Publication date: June 8, 2017Applicant: SOLVAY USA INC.Inventors: Christopher Raymond JONES, Stéphanie EDMUNDS, Jean C. MOLINA
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Patent number: 9090494Abstract: The current invention relates to a process for stabilising a phosphorus-containing compound aqueous composition, comprising the step of adding to the composition an efficient arsenic stabilizing amount of a compound selected from the group consisting of ammonia, ammonium salt, organic amino acid, peptide and polypeptide; application of the stabilized composition for treating an aqueous system optionally containing or in contact with metal sulphide scale, which method comprises adding to the system, separately or together, an efficient anti-scale amount of a stabilized aqueous composition or for treating a water system to kill or inhibit the growth of micro organisms comprising applying thereto or forming in situ an efficient inhibiting amount of the stabilized aqueous composition.Type: GrantFiled: February 1, 2010Date of Patent: July 28, 2015Assignee: RHODIA OPERATIONSInventors: Chris Jones, Stephanie Edmunds, Alan Fellows
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Publication number: 20140080792Abstract: A method for reducing the effects of biological contamination in a hydrocarbon-containing system comprising the steps of continuously adding a formulation comprising tris(hydroxymethyl)phosphine or a tetrakis(hydroxymethyl)phosphonium salt to the system for one day or more; monitoring the efficacy of the continuous treatment by an assessment of the extent to which there is any effect on the environment that is attributable to metabolic activity of active microbes present in the system; wherein the tris(hydroxymethyl)phosphine or tetrakis(hydroxymethyl)phosphonium salt is added at a concentration of from 1 to 30 ppm based on the total volume of aqueous fluid added to the system, and wherein the formulation is added to the system at a stage to minimize incompatibility with any other chemicals that are added to the aqueous fluid.Type: ApplicationFiled: February 29, 2012Publication date: March 20, 2014Applicant: RHODIA OPERATIONSInventors: Chris Jones, Stephanie Edmunds, Gareth Collins
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Publication number: 20120046248Abstract: The current invention relates to a process for stabilising a phosphorus-containing compound aqueous composition, comprising the step of adding to said composition an efficient arsenic stabilizing amount of a compound selected from the group consisting of ammonia, ammonium salt, organic amino acid, peptide and polypeptide; application of the stabilized composition for treating an aqueous system optionally containing or in contact with metal sulphide scale, which method comprises adding to said system, separately or together, an efficient anti-scale amount of a stabilized aqueous composition or for treating a water system to kill or inhibit the growth of micro organisms comprising applying thereto or forming in situ an efficient inhibiting amount of the stabilized aqueous composition.Type: ApplicationFiled: February 1, 2010Publication date: February 23, 2012Applicant: Rhodia OperationsInventors: Chris Jones, Stephanie Edmunds, Alan Fellows
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Patent number: 7740762Abstract: The present invention provides a method of reducing the pathogen content of sewage sludge comprising (a) adding to the sludge an effective amount of a phosphorous-containing compound and (b) keeping the phosphorous-containing compound in contact with the sludge for a sufficient time to reduce the amount of pathogens present in the sludge by an amount equivalent to a logarithmic reduction of 2 or more.Type: GrantFiled: December 16, 2005Date of Patent: June 22, 2010Assignee: Rhodia UK LimitedInventors: Stephanie Edmunds, Paul Douglas Gilbert, Robert Eric Talbot
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Patent number: 7638056Abstract: The present invention provides a method of reducing the pathogen content of sewage sludge comprising (a) adding to the sludge an effective amount of a phosphorous-containing compound and (b) keeping the phosphorous-containing compound in contact with the sludge for a sufficient time to reduce the amount of pathogens present in the sludge by an amount equivalent to a logarithmic reduction of 2 or more.Type: GrantFiled: June 21, 2004Date of Patent: December 29, 2009Assignee: Rhodia OperationsInventors: Stephanie Edmunds, Douglas Paul Gilbert, Eric Robert Talbot, Manocher Asaadi, Peter Winter
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Publication number: 20080257001Abstract: The present invention provides a method of reducing the pathogen content of sewage sludge comprising (a) adding to the sludge an effective amount of a phosphorous-containing compound and (b) keeping the phosphorous-containing compound in contact with the sludge for a sufficient time to reduce the amount of pathogens present in the sludge by an amount equivalent to a logarithmic reduction of 2 or more.Type: ApplicationFiled: December 16, 2005Publication date: October 23, 2008Applicant: Rhodia LimitedInventors: Stephanie Edmunds, Paul Douglas Gilbert, Robert Eric Talbot
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Patent number: 7214292Abstract: Pulping liquors used in the bleaching of pulps by hydrogen peroxide, and containing catalase-producing bacteria and/or catalase enzyme are treated with tris (hydroxymethyl) phosphine or a tetrakis (hydroxymethyl) phosphonium salt to kill the bacteria and destroy the enzyme.Type: GrantFiled: January 16, 2001Date of Patent: May 8, 2007Assignee: Rhodia Consumer Specialties LimitedInventors: Ruth Elizabeth Bowdery, Stephanie Edmunds, Robert Eric Talbot
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Publication number: 20060243674Abstract: The present invention provides a method of reducing the pathogen content of sewage sludge comprising (a) adding to the sludge an effective amount of a phosphorous-containing compound and (b) keeping the phosphorous-containing compound in contact with the sludge for a sufficient time to reduce the amount of pathogens present in the sludge by an amount equivalent to a logarithmic reduction of 2 or more.Type: ApplicationFiled: June 21, 2004Publication date: November 2, 2006Inventors: Stephanie Edmunds, Douglas Gilbert, Eric Talbot, Manocher Assadi, Peter Winter
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Publication number: 20030089473Abstract: Pulping liquors used in the bleaching of pulps by hydrogen peroxide, and containing catalase-producing bacteria and/or catalase enzyme are treated with tris (hydroxymethyl) phosphine or a tetrakis (hydroxymethyl) phosphonium salt to kill the bacteria and destroy the enzyme.Type: ApplicationFiled: August 21, 2002Publication date: May 15, 2003Inventors: Ruth Elizabeth Bowdery, Stephanie Edmunds, Robert Eric Talbot