Patents by Inventor Prema Vijayakumar
Prema Vijayakumar 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: 20230338294Abstract: The present disclosure provides a pharmaceutical oral dosage form. In one embodiment, the dosage form comprises a formulation comprising an active pharmaceutical ingredient (API) and a polymer, wherein said API is a compound inhibiting c-Met tyrosine kinase.Type: ApplicationFiled: April 24, 2021Publication date: October 26, 2023Inventors: Sanjeev REDKAR, Thomas STUMPFIG, Anne MUSKE-DUKES-DRIGGS, Thomas REYNOLDS, Thurman Russell FALK, Mike Tso-Ping LI, Prema VIJAYAKUMAR
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Patent number: 8460641Abstract: An oil-in-water microemulsion or sub-micron emulsion composition for dermal delivery of at least one pharmaceutically active ingredient, comprising: a first part including at least one occlusive agent and one or more lipophilic surfactants dispersed throughout a second part including water and at least one hydrophilic surfactant, and a non-surfactant amphiphilic type compound, pharmaceutically active ingredient, and water. It has been found that if a non-surfactant amphiphilic type compound is added together with the second part as would conventionally be the case, a microemulsion or sub-micron emulsion is not formed, by adding the so called third part, phase assembly occurs at a lower temperature than would be expected and moreover, this phase appears to assist in maintaining the microemulsion or sub-micron emulsion characteristics of the formulation during storage at normal temperatures.Type: GrantFiled: August 31, 2005Date of Patent: June 11, 2013Assignee: Stiefel Research Australia Pty LtdInventors: Maria Graziella Larm, Ronald Harding, Michael Johnston, Albert Zorko Abram, Prema Vijayakumar, Phoebe Sun
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Patent number: 8449867Abstract: An oil in water microemulsion or sub-micron emulsion composition for dermal delivery of at least one pharmaceutically active ingredient, is provided. The composition includes an oil phase dispersed throughout a water phase, the oil phase including at least one member selected from the group consisting of an animal oil, a mineral oil, a vegetable oil, a silane member, a siloxane, an ester, a fatty acid, a fat, a halogen compound, and an alkoxylated alcohol; and at least one lipophilic surfactant, the water phase including at least one hydrophilic surfactant, water and optionally a non-surfactant amphiphilic compound, the weight ratio of the at least one hydrophilic surfactant to the at least one lipophilic surfactant being approximately 9.0:1.0 to 2.0:3.0.Type: GrantFiled: June 25, 2009Date of Patent: May 28, 2013Assignee: Stiefel Research Australia Pty LtdInventors: Maria Graziella Larm, Ronald Harding, Michael Johnston, Albert Zorko Abram, Prema Vijayakumar, Phoebe Sun
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Publication number: 20100055137Abstract: An oil in water microemulsion or sub-micron emulsion composition for dermal delivery of at least one pharmaceutically active ingredient, is provided. The composition includes an oil phase dispersed throughout a water phase, the oil phase including at least one member selected from the group consisting of an animal oil, a mineral oil, a vegetable oil, a silane member, a siloxane, an ester, a fatty acid, a fat, a halogen compound, and an alkoxylated alcohol; and at least one lipophilic surfactant, the water phase including at least one hydrophilic surfactant, water and optionally a non-surfactant amphiphilic compound, the weight ratio of the at least one hydrophilic surfactant to the at least one lipophilic surfactant being approximately 9.0:1.0 to 2.0:3.0.Type: ApplicationFiled: June 25, 2009Publication date: March 4, 2010Applicant: STIEFEL RESEARCH AUSTRALIA PTY LTDInventors: Maria Graziella Larm, Ronald Harding, Michael Johnston, Albert Zorko Abram, Prema Vijayakumar, Phoebe Sun
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Patent number: 7183068Abstract: This invention relates to methods for reducing the presence of a compound in an ionically conductive material, e.g., for use in iontophoretic devices, wherein the presence of the compound interferes with detecting a selected analyte. Removal of the compound can typically take place either during or after the manufacture of the ionically conductive material or an assembly comprising this material. Also disclosed are methods for generating selectively permeable barriers on the reactive faces of electrodes. Further, this invention relates to hydrogels comprising one or more biocides, as well as assemblies containing such hydrogels.Type: GrantFiled: February 17, 2005Date of Patent: February 27, 2007Assignee: Animas Technologies, LLCInventors: Kim K. Burson, Michelle Van Wyhe, Jeffrey Pudlo, Michael Reidy, Pravin Soni, Christopher Uhegbu, Prema Vijayakumar
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Patent number: 6902905Abstract: This invention relates to methods for reducing the presence of a compound in an ionically conductive material, e.g., for use in iontophoretic devices, wherein the presence of the compound interferes with detecting a selected analyte. Removal of the compound can typically take place either during or after the manufacture of the ionically conductive material or an assembly comprising this material. Also disclosed are methods for generating selectively permeable barriers on the reactive faces of electrodes. Further, this invention relates to hydrogels comprising one or more biocides, as well as assemblies containing such hydrogels.Type: GrantFiled: May 14, 2003Date of Patent: June 7, 2005Assignee: Cygnus, Inc.Inventors: Kim K. Burson, Michelle Van Wyhe, Jeffrey Pudlo, Michael Reidy, Pravin Soni, Christopher Uhegbu, Prema Vijayakumar
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Publication number: 20040062759Abstract: A hydrogel patch is disclosed which is comprised of a polymeric material which forms a gel with water with the material being present in an amount of about 0.5% to 40% by weight based on the weight of the patch. Electrical conductively of the water is increased by the addition of an electrolyte. The patch comprises an enzyme which is capable of catalyzing a reaction with a biomedically important molecule such as glucose. Glucose drawn into the patch undergoes a reaction with the aid of the enzyme and the hydrogen peroxide released flows through the electrically conductivity of the water and may react at an electrode surface to generate a signal related to the amount of glucose entering the patch. The patch is also preferably comprised of a buffer which maintains the pH of the patch in the range of from about 3 to 9, and may be further comprised of a cross-linking agent, a biocide, a humectant, and a surfactant. The patch is preferably in the form of a thin (5 &mgr;m-50 mils), flat circular disc (0.Type: ApplicationFiled: September 17, 2003Publication date: April 1, 2004Applicant: Cygnus, Inc.Inventors: William Abraham, Bret Berner, Priti S. Joshi, Phillip J. Plante, Prema Vijayakumar
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Publication number: 20030199745Abstract: This invention relates to methods for reducing the presence of a compound in an ionically conductive material, e.g., for use in iontophoretic devices, wherein the presence of the compound interferes with detecting a selected analyte. Removal of the compound can typically take place either during or after the manufacture of the ionically conductive material or an assembly comprising this material. Also disclosed are methods for generating selectively permeable barriers on the reactive faces of electrodes. Further, this invention relates to hydrogels comprising one or more biocides, as well as assemblies containing such hydrogels.Type: ApplicationFiled: May 14, 2003Publication date: October 23, 2003Applicant: Cygnus, Inc.Inventors: Kim K. Burson, Michelle Van Wyhe, Jeffrey Pudlo, Michael Reidy, Pravin Soni, Christopher Uhegbu, Prema Vijayakumar
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Patent number: 6615078Abstract: This invention relates to methods for reducing the presence of a compound in an ionically conductive material, e.g., for use in iontophoretic devices, wherein the presence of the compound interferes with detecting a selected analyte. Removal of the compound can typically take place either during or after the manufacture of the ionically conductive material or an assembly comprising this material. Also disclosed are methods for generating selectively permeable barriers on the reactive faces of electrodes. Further, this invention relates to hydrogels comprising one or more biocides, as well as assemblies containing such hydrogels.Type: GrantFiled: April 21, 2000Date of Patent: September 2, 2003Assignee: Cygnus, Inc.Inventors: Kim K. Burson, Michelle Van Wyhe, Jeffrey Pudlo, Michael Reidy, Pravin Soni, Christopher Uhegbu, Prema Vijayakumar
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Patent number: 6438414Abstract: The invention relates generally to consumable components of a device used for continually or continuously measuring the concentration of target chemical analytes present in a biological system. More particularly, the invention relates to collection assemblies, laminate structures, and autosensor assemblies, which are used in connection with a transdermal sampling device. In one aspect, the invention includes autosensor assemblies which include laminate structures, electrode assemblies, and support trays. One important application of the invention involves an autosensor assembly for use in a blood glucose monitoring device.Type: GrantFiled: November 30, 2001Date of Patent: August 20, 2002Assignee: Cygnus, Inc.Inventors: Thomas E. Conn, Russell Ford, Pravin L. Soni, Michael J. Tierney, Prema Vijayakumar
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Patent number: 6393318Abstract: The invention relates generally to consumable components of a device used for continually or continuously measuring the concentration of target chemical analytes present in a biological system. More particularly, the invention relates to collection assemblies, laminate structures, and autosensor assemblies, which are used in connection with a transdermal sampling device. In one aspect, the invention includes autosensor assemblies which include laminate structures, electrode assemblies, and support trays. One important application of the invention involves an autosensor assembly for use in a blood glucose monitoring device.Type: GrantFiled: May 11, 1999Date of Patent: May 21, 2002Assignee: Cygnus, Inc.Inventors: Thomas E. Conn, Russell Ford, Pravin L. Soni, Michael J. Tierney, Prema Vijayakumar
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Publication number: 20020053637Abstract: The invention relates generally to consumable components of a device used for continually or continuously measuring the concentration of target chemical analytes present in a biological system. More particularly, the invention relates to collection assemblies, laminate structures, and autosensor assemblies, which are used in connection with a transdermal sampling device. In one aspect, the invention includes autosensor assemblies which include laminate structures, electrode assemblies, and support trays. One important application of the invention involves an autosensor assembly for use in a blood glucose monitoring device.Type: ApplicationFiled: November 30, 2001Publication date: May 9, 2002Applicant: Cygnus, Inc.Inventors: Thomas E. Conn, Russell Ford, Pravin L. Soni, Michael J. Tierney, Prema Vijayakumar
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Patent number: 6341232Abstract: The invention relates generally to methods of producing consumable components of a device used for measuring the concentration of target chemical analytes present in a biological system. More particularly, the invention relates methods of producing collection assemblies, laminate structures, and autosensor assemblies, which are used in connection with a transdermal sampling device. In one aspect, the invention includes methods of producing autosensor assemblies which include laminate structures, electrode assemblies, and support trays. One important application of the invention involves methods of producing an autosensor assembly for use in a blood glucose monitoring device.Type: GrantFiled: March 16, 2001Date of Patent: January 22, 2002Assignee: Cygnus, Inc.Inventors: Thomas E. Conn, Russell Ford, Pravin L. Soni, Michael J. Tierney, Prema Vijayakumar
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Publication number: 20020004640Abstract: The invention relates generally to consumable components of a device used for continually or continuously measuring the concentration of target chemical analytes present in a biological system. More particularly, the invention relates to collection assemblies, laminate structures, and autosensor assemblies, which are used in connection with a transdermal sampling device. In one aspect, the invention includes autosensor assemblies which include laminate structures, electrode assemblies, and support trays. One important application of the invention involves an autosensor assembly for use in a blood glucose monitoring device.Type: ApplicationFiled: March 16, 2001Publication date: January 10, 2002Applicant: Cygnus, Inc.Inventors: Thomas E. Conn, Russell Ford, Pravin L. Soni, Michael J. Tierney, Prema Vijayakumar