Patents by Inventor Daniel To
Daniel To 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: 12012586Abstract: A hypoxic chamber system comprises a hypoxic chamber having: a housing, an internal receiving chamber formed within the housing, a lid operably connectable to the housing to seal the receiving chamber in a closed position, a first input and a second input in communication with the receiving chamber, and an oxygen sensor positioned in the receiving chamber; a first regulator valve operatively connected to the first input and an oxygen source; a second regulator valve operatively connected to the second input and a non-oxygen source; and a controller electrically connected to the first regulator valve, the second regulator valve, and the oxygen sensor.Type: GrantFiled: October 29, 2020Date of Patent: June 18, 2024Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMInventors: Kytai Truong Nguyen, Alan Nguyen, Harish Ramachandramoorthy, Daniel To, Dylan Yu
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Publication number: 20210348110Abstract: A hypoxic chamber system comprises a hypoxic chamber having: a housing, an internal receiving chamber formed within the housing, a lid operably connectable to the housing to seal the receiving chamber in a closed position, a first input and a second input in communication with the receiving chamber, and an oxygen sensor positioned in the receiving chamber; a first regulator valve operatively connected to the first input and an oxygen source; a second regulator valve operatively connected to the second input and a non-oxygen source; and a controller electrically connected to the first regulator valve, the second regulator valve, and the oxygen sensor.Type: ApplicationFiled: October 29, 2020Publication date: November 11, 2021Inventors: Kytai Truong NGUYEN, Alan NGUYEN, Harish RAMACHANDRAMOORTHY, Daniel TO, Dylan YU
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Patent number: 10899695Abstract: The present invention relates to a process for the manufacturing of 1-aryl-1-trifluoromethylcyclopropanes, which serve as intermediates for the manufacturing of calcium T channel blockers of the general formula (A) which are described in WO 2015/186056.Type: GrantFiled: February 5, 2018Date of Patent: January 26, 2021Assignee: IDORSIA PHARMACEUTICALS LTDInventors: Lee McLaren, Daniel To, David Tovell, Stefan Abele
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Patent number: 10758489Abstract: The present invention includes acidifying film coating compositions containing a polymer and an acidic component for use on orally-ingestible substrates such as tablets and the like. The acidifying coating compositions can be applied as an aqueous dispersion to an enteric-coated substrate to increase the disintegration resistance to aqueous media of up to pH 5.0. In preferred aspects, the acidic component is citric acid, lactic acid, stearic acid or mixtures thereof. Methods of preparing the dry film coatings, methods of preparing corresponding aqueous dispersions, methods of applying the coatings to substrates and the coated substrates themselves are also disclosed.Type: GrantFiled: March 29, 2019Date of Patent: September 1, 2020Assignee: BPSI HOLDINGS LLCInventors: Raxitkumar Y. Mehta, George Reyes, Jason Teckoe, Daniel To
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Publication number: 20190375702Abstract: The present invention relates to a process for the manufacturing of 1-aryl-1-trifluoromethylcyclopropanes, which serve as intermediates for the manufacturing of calcium T channel blockers of the general formula (A) which are described in WO 2015/186056.Type: ApplicationFiled: February 5, 2018Publication date: December 12, 2019Inventors: Lee MCLAREN, Daniel TO, David TOVELL, Stefan ABELE
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Publication number: 20190314286Abstract: The present invention includes acidifying film coating compositions containing a polymer and an acidic component for use on orally-ingestible substrates such as tablets and the like. The acidifying coating compositions can be applied as an aqueous dispersion to an enteric-coated substrate to increase the disintegration resistance to aqueous media of up to pH 5.0. In preferred aspects, the acidic component is citric acid, lactic acid, stearic acid or mixtures thereof. Methods of preparing the dry film coatings, methods of preparing corresponding aqueous dispersions, methods of applying the coatings to substrates and the coated substrates themselves are also disclosed.Type: ApplicationFiled: March 29, 2019Publication date: October 17, 2019Applicant: BPSI Holdings LLCInventors: Raxitkumar Y. Mehta, George Reyes, Jason Teckoe, Daniel To
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Patent number: 10232045Abstract: The present invention is directed to film coating compositions for use on oral dosage forms such as compressed tablets and other orally-ingestible substrates which contain a water-soluble polymer and guar gum. The film coating compositions can be applied either directly to a substrate or after the substrate has been coated with a subcoat. In preferred aspects, the water-soluble polymer is a cellulosic or vinyl polymer. Aqueous suspensions containing the inventive film coating compositions and the coated substrates themselves are also disclosed. The resulting coated substrates have relatively low coefficients of static and dynamic friction on wet surfaces rendering them easier to swallow than prior art compositions.Type: GrantFiled: July 26, 2017Date of Patent: March 19, 2019Assignee: BPSI HOLDINGS LLCInventors: Jeffrey R. Gimbel, Daniel To, Jason Teckoe
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Publication number: 20180036413Abstract: The present invention is directed to film coating compositions for use on oral dosage forms such as compressed tablets and other orally-ingestible substrates which contain a water-soluble polymer and guar gum. The film coating compositions can be applied either directly to a substrate or after the substrate has been coated with a subcoat. In preferred aspects, the water-soluble polymer is a cellulosic or vinyl polymer. Aqueous suspensions containing the inventive film coating compositions and the coated substrates themselves are also disclosed. The resulting coated substrates have relatively low coefficients of static and dynamic friction on wet surfaces rendering them easier to swallow than prior art compositions.Type: ApplicationFiled: July 26, 2017Publication date: February 8, 2018Inventors: Jeffrey R. Gimbel, Daniel To, Jason Teckoe
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Patent number: 9801820Abstract: A composite particle including a core with at least one carrier material; a fluidizing material layer on the surface of the core; and an outer layer comprising nanoparticles of an ingestible material distributed in at least one matrix-forming material. A process of making the composite particles includes the steps of dry coating carrier particles with a fluidizing material; preparing a suspension of nanoparticles of an ingestible material distributed in a matrix-forming material; and fluid bed coating the carrier particles with the suspension. The process and products provide quick dissolving composite particles which can be used for delivery of poorly water soluble ingestible materials in suitable dosage forms. The process of the invention reduces or prevents particle agglomeration during fabrication of the composite particles to enable delivery and quick redispersion of nanoparticles of the ingestible material from a dosage form.Type: GrantFiled: November 8, 2013Date of Patent: October 31, 2017Assignee: NEW JERSEY INSTITUTE OF TECHNOLOGYInventors: Daniel To, Rajesh Dave, Catharina Knieke, Ecevit A. Bilgili, Mohammed A. Azad
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Patent number: 9789067Abstract: The present invention is directed to immediate release film coating compositions for use on oral dosage forms such as compressed tablets and other orally-ingestible substrates which contain medium chain glycerides as detackifiers. The film coating compositions can be applied either directly to a substrate or after the substrate has been coated with a subcoat. In preferred aspects, the polymer is polyvinyl alcohol and the medium chain glycerides are mixtures of caprylic (8 carbon chain) and capric (10 carbon chain) mono- and diesters of glycerin. Aqueous suspensions comprising the inventive film coating compositions, methods of applying the coatings to substrates and the coated substrates themselves are also disclosed.Type: GrantFiled: October 24, 2016Date of Patent: October 17, 2017Assignee: BPSI Holdings, LLCInventors: Jason Teckoe, Bradley J. Prusak, Jeffrey R. Gimbel, Daniel To
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Publication number: 20170035697Abstract: The present invention is directed to immediate release film coating compositions for use on oral dosage forms such as compressed tablets and other orally-ingestible substrates which contain medium chain glycerides as detackifiers. The film coating compositions can be applied either directly to a substrate or after the substrate has been coated with a subcoat. In preferred aspects, the polymer is polyvinyl alcohol and the medium chain glycerides are mixtures of caprylic (8 carbon chain) and capric (10 carbon chain) mono- and diesters of glycerin. Aqueous suspensions comprising the inventive film coating compositions, methods of applying the coatings to substrates and the coated substrates themselves are also disclosed.Type: ApplicationFiled: October 24, 2016Publication date: February 9, 2017Inventors: Jason Teckoe, Bradley J. Prusak, Jeffrey R. Gimbel, Daniel To
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Patent number: 9504654Abstract: The present invention is directed to immediate release film coating compositions for use on oral dosage forms such as compressed tablets and other orally-ingestible substrates which contain medium chain glycerides as detackifiers. The film coating compositions can be applied either directly to a substrate or after the substrate has been coated with a subcoat. In preferred aspects, the polymer is polyvinyl alcohol and the medium chain glycerides are mixtures of caprylic (8 carbon chain) and capric (10 carbon chain) mono- and diesters of glycerin. Aqueous suspensions comprising the inventive film coating compositions, methods of applying the coatings to substrates and the coated substrates themselves are also disclosed.Type: GrantFiled: January 14, 2015Date of Patent: November 29, 2016Assignee: BPSI HOLDINGS, LLCInventors: Jason Teckoe, Bradley J. Prusak, Jeffrey R. Gimbel, Daniel To
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Publication number: 20150297521Abstract: A composite particle including a core with at least one carrier material; a fluidizing material layer on the surface of the core; and an outer layer comprising nanoparticles of an ingestible material distributed in at least one matrix-forming material. A process of making the composite particles includes the steps of dry coating carrier particles with a fluidizing material; preparing a suspension of nanoparticles of an ingestible material distributed in a matrix-forming material; and fluid bed coating the carrier particles with the suspension. The process and products provide quick dissolving composite particles which can be used for delivery of poorly water soluble ingestible materials in suitable dosage forms. The process of the invention reduces or prevents particle agglomeration during fabrication of the composite particles to enable delivery and quick redispersion of nanoparticles of the ingestible material from a dosage form.Type: ApplicationFiled: November 8, 2013Publication date: October 22, 2015Applicant: New Jersey Institute of TechnologyInventors: Daniel To, Rajesh Dave, Catharina Knieke, Ecevit A. Bilgili, Mohammed A. Azad
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Patent number: 9107851Abstract: The present invention is a solventless method of producing polymer coated active pharmaceutical ingredient that is taste-masked and may be released in relatively short time. It employs high energy vibrations or acoustic mixing of API particles, water soluble coating material particles and hydrophobic polymer particles, with or without use of other pharmaceutically relevant powders as media. Additionally the method is capable of producing individually coated drug particles without agglomeration or the long drying times associated with solvent based coating methods.Type: GrantFiled: October 15, 2012Date of Patent: August 18, 2015Assignee: New Jersey Institute of TechnologyInventors: Rajesh N. Dave, Daniel To, Maxx Capece
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Publication number: 20150202160Abstract: The present invention is directed to immediate release film coating compositions for use on oral dosage forms such as compressed tablets and other orally-ingestible substrates which contain medium chain glycerides as detackifiers. The film coating compositions can be applied either directly to a substrate or after the substrate has been coated with a subcoat. In preferred aspects, the polymer is polyvinyl alcohol and the medium chain glycerides are mixtures of caprylic (8 carbon chain) and capric (10 carbon chain) mono- and diesters of glycerin. Aqueous suspensions comprising the inventive film coating compositions, methods of applying the coatings to substrates and the coated substrates themselves are also disclosed.Type: ApplicationFiled: January 14, 2015Publication date: July 23, 2015Inventors: Jason Teckoe, Bradley J. Prusak, Jeffrey R. Gimbel, Daniel To
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Patent number: 8993041Abstract: A taste masked particulate pharmaceutical formulation include a core that comprises an active pharmaceutical ingredient; at least a partial nanoparticle material layer on the core that comprises a nanoparticle material with a median particle size not greater than 100 nm; a first polymer layer that is at least partially water soluble and a second polymer layer that is water insoluble. The active pharmaceutical ingredient is completely released in 30 minutes in the USP Dissolution Test. A process of making the particulate pharmaceutical formulation using sequential fluidized bed coating steps under controlled conditions is also described.Type: GrantFiled: October 15, 2012Date of Patent: March 31, 2015Assignee: New Jersey Institute of TechnologyInventors: Daniel To, Rajesh N. Dave
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Publication number: 20140106058Abstract: A taste masked particulate pharmaceutical formulation include a core that comprises an active pharmaceutical ingredient; at least a partial nanoparticle material layer on the core that comprises a nanoparticle material with a median particle size not greater than 100 nm; a first polymer layer that is at least partially water soluble and a second polymer layer that is water insoluble. The active pharmaceutical ingredient is completely released in 30 minutes in the USP Dissolution Test. A process of making the particulate pharmaceutical formulation using sequential fluidized bed coating steps under controlled conditions is also described.Type: ApplicationFiled: October 15, 2012Publication date: April 17, 2014Applicant: NEW JERSEY INSTITUTE OF TECHNOLOGYInventors: Daniel To, Rajesh N. Dave
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Publication number: 20140106059Abstract: The present invention is a solventless method of producing polymer coated active pharmaceutical ingredient that is taste-masked and may be released in relatively short time. It employs high energy vibrations or acoustic mixing of API particles, water soluble coating material particles and hydrophobic polymer particles, with or without use of other pharmaceutically relevant powders as media. Additionally the method is capable of producing individually coated drug particles without agglomeration or the long drying times associated with solvent based coating methods.Type: ApplicationFiled: October 15, 2012Publication date: April 17, 2014Applicant: New Jersey Institute of TechnologyInventors: Rajesh N. Dave, Daniel To, Maxx Capece