Patents by Inventor Susanna Toivonen
Susanna Toivonen 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: 11879095Abstract: The present embodiments generally relate to methods and compositions comprising one or more polymers which gradually increase in charge, thereby providing for an increase in viscosity in an aqueous solution or aqueous composition, such as when present in a desired aqueous environment. Use of such compositions and methods comprising one or more polymers which gradually increase in charge, thereby providing for an increase in viscosity in an aqueous solution or aqueous composition during enhanced oil recovery may result in an increase in oil production relative to methods and/or compositions which do not comprise one or more polymers which gradually increase in charge, thereby providing for an increase in viscosity in an aqueous solution or aqueous composition.Type: GrantFiled: September 17, 2019Date of Patent: January 23, 2024Assignee: KEMIRA OYJInventors: Leena Nurmi, Sirkku Hanski, Susanna Toivonen, Louis Rosati
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Publication number: 20210396673Abstract: The present invention relates to a method for determining hydrolysis degree and charge density of polyelectrolyte or phosphonate in a sample. In the method the sample is mixed with a reagent comprising a lanthanide(lll) ion. The mixture is excited at an excitation wavelength and a signal deriving from the lanthanide(lll) ion is detected by using time-resolved fluorescence measurement, followed by determining the hydrolysis degree and the charge density of the polyelectrolyte or phosphonate by using the detected sample signal.Type: ApplicationFiled: September 27, 2019Publication date: December 23, 2021Inventors: Salla PUUPPONEN, Susanna TOIVONEN, Sari KRAPU
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Publication number: 20210348049Abstract: The present embodiments generally relate to methods and compositions comprising one or more polymers which gradually increase in charge, thereby providing for an increase in viscosity in an aqueous solution or aqueous composition, such as when present in a desired aqueous environment. Use of such compositions and methods comprising one or more polymers which gradually increase in charge, thereby providing for an increase in viscosity in an aqueous solution or aqueous composition during enhanced oil recovery may result in an increase in oil production relative to methods and/or compositions which do not comprise one or more polymers which gradually increase in charge, thereby providing for an increase in viscosity in an aqueous solution or aqueous composition.Type: ApplicationFiled: September 17, 2019Publication date: November 11, 2021Inventors: Leena NURMI, Sirkku HANSKI, Susanna TOIVONEN, Louis ROSATI
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Patent number: 10914679Abstract: The invention relates to a method for determining a scale inhibitor concentration in a sample comprising at least a first scale inhibitor, which is a synthetic organic compound comprising at least one ionised group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample to interact with a reagent comprising a lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement, and the concentration of the at least first scale inhibitor in the sample is determined by using the detected sample signal.Type: GrantFiled: March 21, 2018Date of Patent: February 9, 2021Assignee: Kemira OyjInventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Paul Mundill
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Patent number: 10241047Abstract: The invention relates to a method for analysing a sample comprising at least a first and a second scale inhibitor, which scale inhibitors are synthetic organic compounds comprising at least one ionised group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample interact with a reagent comprising lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement. The total concentration of the first and the second scale inhibitor is determined by using the detected sample signal, and the concentration of the first scale inhibitor in the sample is determined. The concentration of the second scale inhibitor is determined mathematically by using the obtained results for the total concentration and for the first scale inhibitor concentration.Type: GrantFiled: September 27, 2017Date of Patent: March 26, 2019Assignee: Kemira OyjInventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Mirva Lehmusto, Satu Tiittanen, Pave Väisänen, Joonas Siivonen, Paul Mundill
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Publication number: 20180284022Abstract: The invention relates to a method for determining a scale inhibitor concentration in a sample comprising at least a first scale inhibitor, which is a synthetic organic compound comprising at least one ionised group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample to interact with a reagent comprising a lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement, and the concentration of the at least first scale inhibitor in the sample is determined by using the detected sample signal.Type: ApplicationFiled: March 21, 2018Publication date: October 4, 2018Applicant: Kemira OyjInventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Paul Mundill
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Patent number: 9958389Abstract: The invention relates to a method for determining a scale inhibitor concentration in a sample comprising at least a first scale inhibitor, which is a synthetic organic compound comprising at least one ionized group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample to interact with a reagent comprising a lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement, and the concentration of the at least first scale inhibitor in the sample is determined by using the detected sample signal.Type: GrantFiled: November 18, 2014Date of Patent: May 1, 2018Assignee: KEMIRA OYJInventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Paul Mundill
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Patent number: 9902904Abstract: Scale-inhibiting polymers comprising one or more scale-inhibiting units and one or more tagging units, wherein each tagging unit is formed from a compound of Formula I, II, III, or IV, or a salt, hydrate, salt hydrate, stereoisomer, dehydrate or derivative thereof. Scale-inhibiting compositions comprising the scale-inhibiting polymers, processes for determining a concentration of a scale-inhibiting polymer for inhibiting scale formation, and methods for preventing or controlling scale formation in systems comprising fluid circulation with the scale-inhibiting polymers are also disclosed herein.Type: GrantFiled: January 7, 2015Date of Patent: February 27, 2018Assignee: Kemira OyjInventors: Vesa Nuutinen, Susanna Toivonen
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Publication number: 20180017494Abstract: The invention relates to a method for analysing a sample comprising at least a first and a second scale inhibitor, which scale inhibitors are synthetic organic compounds comprising at least one ionised group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample interact with a reagent comprising lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement. The total concentration of the first and the second scale inhibitor is determined by using the detected sample signal, and the concentration of the first scale inhibitor in the sample is determined. The concentration of the second scale inhibitor is determined mathematically by using the obtained results for the total concentration and for the first scale inhibitor concentration.Type: ApplicationFiled: September 27, 2017Publication date: January 18, 2018Applicant: Kemira OyjInventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Mirva Lehmusto, Satu Tiittanen, Pave Väisänen, Joonas Siivonen, Paul Mundill
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Patent number: 9816927Abstract: The invention relates to a method for analysing a sample comprising at least a first and a second scale inhibitor, which scale inhibitors are synthetic organic compounds comprising at least one ionised group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample interact with a reagent comprising lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement. The total concentration of the first and the second scale inhibitor is determined by using the detected sample signal, and the concentration of the first scale inhibitor in the sample is determined. The concentration of the second scale inhibitor is determined mathematically by using the obtained results for the total concentration and for the first scale inhibitor concentration.Type: GrantFiled: November 18, 2014Date of Patent: November 14, 2017Assignee: KEMIRA OYJInventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Mirva Lehmusto, Satu Tiittanen, Pave Väisänen, Joonas Siivonen, Paul Mundill
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Publication number: 20160290923Abstract: The invention relates to a method for determining a scale inhibitor concentration in a sample comprising at least a first scale inhibitor, which is a synthetic organic compound comprising at least one ionised group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample to interact with a reagent comprising a lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement, and the concentration of the at least first scale inhibitor in the sample is determined by using the detected sample signal.Type: ApplicationFiled: November 18, 2014Publication date: October 6, 2016Applicant: KEMIRA OYJInventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Paul Mundill
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Publication number: 20160290924Abstract: The invention relates to a method for analysing a sample comprising at least a first and a second scale inhibitor, which scale inhibitors are synthetic organic compounds comprising at least one ionised group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample interact with a reagent comprising lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement. The total concentration of the first and the second scale inhibitor is determined by using the detected sample signal, and the concentration of the first scale inhibitor in the sample is determined. The concentration of the second scale inhibitor is determined mathematically by using the obtained results for the total concentration and for the first scale inhibitor concentration.Type: ApplicationFiled: November 18, 2014Publication date: October 6, 2016Applicant: Kemira OyjInventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Mirva Lehmusto, Satu Tiittanen, Pave Väisänen, Joonas Siivonen, Paul Mundill
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Publication number: 20150184069Abstract: Scale-inhibiting polymers comprising one or more scale-inhibiting units and one or more tagging units, wherein each tagging unit is formed from a compound of Formula I, II, III, or IV, or a salt, hydrate, salt hydrate, stereoisomer, dehydrate or derivative thereof. Scale-inhibiting compositions comprising the scale-inhibiting polymers, processes for determining a concentration of a scale-inhibiting polymer for inhibiting scale formation, and methods for preventing or controlling scale formation in systems comprising fluid circulation with the scale-inhibiting polymers are also disclosed herein.Type: ApplicationFiled: January 7, 2015Publication date: July 2, 2015Inventors: Vesa Nuutinen, Susanna Toivonen