Patents by Inventor Boyce S. Chang
Boyce S. Chang 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: 11938535Abstract: Textured particles and methods of making the same. A textured particle includes an inner core and a spherical solid outer shell including an outer surface. The inner core is inside the outer shell. The outer surface includes a first tier texture including a first metal, wherein the first metal is greater than 50 atomic % of a total atomic content of all metals in the first tier texture; a second tier texture including the second metal, wherein the second metal is greater than 50 atomic % of a total atomic content of all metals in the second tier texture; and a third tier texture including the third metal, wherein the third metal is greater than 50 atomic % of a total atomic content of all metals in the third tier texture. The first metal, second metal, and third metals are different metals.Type: GrantFiled: November 15, 2021Date of Patent: March 26, 2024Assignee: Iowa State University Research Foundation, Inc.Inventors: Martin Thuo, Boyce S. Chang, Andrew Martin, Winnie M. Kiarie
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Publication number: 20230287200Abstract: One or more techniques and/or systems are disclosed for a dry-type lubricant for use in a dry product hopper to help improve dry product flow and to improve anti-jamming properties of the dry product. The example lubricant can comprise a hydrophilic fiber, such as cellulose, having a width to length aspect ratio that provides a thin fiber. A plurality of hydrophobic particles are deposited on the surface of the fiber, resulting in a fiber surface exhibiting amphiphobic properties. Further, the fiber can operably absorb water, and then releases the absorbed water to the surface of the fiber under mechanical stress, such as when mixed with a product in a hopper. This can result in the water being disposed on the surface of the fiber, to provide lubrication to a product in a hopper to improve flow and anti-jamming characteristics of the product in the hopper.Type: ApplicationFiled: March 28, 2023Publication date: September 14, 2023Applicant: Iowa State University Research Foundation, Inc.Inventors: Martin Thuo, Paul Ramon Gregory, Boyce S. Chang, Chuanshen Du
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Patent number: 11613630Abstract: One or more techniques and/or systems are disclosed for a dry-type lubricant for use in a dry product hopper to help improve dry product flow and to improve anti jamming properties of the dry product. The example lubricant can comprise a hydrophilic fiber, such as cellulose, having a width to length aspect ratio that provides a thin fiber. A plurality of hydrophobic particles are deposited on the surface of the fiber, resulting in a fiber surface exhibiting amphiphobic properties. Further, the fiber can operably absorb water, and then releases the absorbed water to the surface of the fiber under mechanical stress, such as when mixed with a product in a hopper. This can result in the water being disposed on the surface of the fiber, to provide lubrication to a product in a hopper to improve flow and anti jamming characteristics of the product in the hopper.Type: GrantFiled: December 3, 2020Date of Patent: March 28, 2023Assignee: Iowa State University Research FoundationInventors: Martin Thuo, Paul Ramon Gregory, Boyce S. Chang, Chuanshen Du
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Publication number: 20220177676Abstract: One or more techniques and/or systems are disclosed for a dry-type lubricant for use in a dry product hopper to help improve dry product flow and to improve anti jamming properties of the dry product. The example lubricant can comprise a hydrophilic fiber, such as cellulose, having a width to length aspect ratio that provides a thin fiber. A plurality of hydrophobic particles are deposited on the surface of the fiber, resulting in a fiber surface exhibiting amphiphobic properties. Further, the fiber can operably absorb water, and then releases the absorbed water to the surface of the fiber under mechanical stress, such as when mixed with a product in a hopper. This can result in the water being disposed on the surface of the fiber, to provide lubrication to a product in a hopper to improve flow and anti jamming characteristics of the product in the hopper.Type: ApplicationFiled: December 3, 2020Publication date: June 9, 2022Applicant: Iowa State University Research FoundationInventors: Martin Thuo, Paul Ramon Gregory, Boyce S. Chang, Chuanshen Du
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Publication number: 20220152698Abstract: Textured particles and methods of making the same. A textured particle includes an inner core and a spherical solid outer shell including an outer surface. The inner core is inside the outer shell. The outer surface includes a first tier texture including a first metal, wherein the first metal is greater than 50 atomic % of a total atomic content of all metals in the first tier texture; a second tier texture including the second metal, wherein the second metal is greater than 50 atomic % of a total atomic content of all metals in the second tier texture; and a third tier texture including the third metal, wherein the third metal is greater than 50 atomic % of a total atomic content of all metals in the third tier texture. The first metal, second metal, and third metals are different metals.Type: ApplicationFiled: November 15, 2021Publication date: May 19, 2022Inventors: Martin Thuo, Boyce S. Chang, Andrew Martin, Winnie M. Kiarie
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Patent number: 11241678Abstract: A method for making organo-metal material involves providing a metal ion source in a medium that removes metal ions from the source and forms 1D metal-containing coordination polymers that self-assemble and precipitate as at least one of a 2D and 3D coordination polymer material that can be thermally treated to produce a porous metal oxide material.Type: GrantFiled: April 27, 2018Date of Patent: February 8, 2022Assignee: Iowa State University Research Foundation, Inc.Inventors: Martin M. Thuo, Boyce S. Chang, Jiahao Chen, Aaron J. Rossini
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Patent number: 10759127Abstract: A composite material is provided including a polymer matrix and undercooled liquid metallic core-shell particles disposed in the matrix, wherein the particles each have an outer shell and a liquid metallic material as a core contained within the outer shell. The outer shell is frangible such that the liquid metallic material is released from at least some of the particles in response to a mechanical load applied to the composite and solidifies in-situ in the polymer matrix. As a result, the composite material can be self-strengthening and self-healing and can be reconfigurable in shape at ambient temperature.Type: GrantFiled: March 8, 2018Date of Patent: September 1, 2020Assignee: Iowa State University Research Foundation, Inc.Inventors: Martin Thuo, Boyce S. Chang
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Publication number: 20180311655Abstract: A method for making organo-metal material involves providing a metal ion source in a medium that removes metal ions from the source and forms 1D metal-containing coordination polymers that self-assemble and precipitate as at least one of a 2D and 3D coordination polymer material that can be thermally treated to produce a porous metal oxide material.Type: ApplicationFiled: April 27, 2018Publication date: November 1, 2018Inventors: Martin M. Thuo, Boyce S. Chang, Jiahao Chen, Aaron J. Rossini
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Publication number: 20180258235Abstract: A composite material is provided including an elastomeric polymer matrix and undercooled liquid metallic core-shell particles disposed in the matrix, wherein the particles each have an outer shell and a liquid metallic material as a core contained within the outer shell. The outer shell is frangible such that the liquid metallic material is released from at least some of the particles in response to a mechanical load applied to the composite and solidifies in-situ in the polymer matrix. As a result, the composite material can be self-strengthening and self-healing and can be reconfigurable in shape at ambient temperature.Type: ApplicationFiled: March 7, 2018Publication date: September 13, 2018Inventors: Martin M. Thuo, Boyce S. Chang
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Publication number: 20180257322Abstract: A composite material is provided including a polymer matrix and undercooled liquid metallic core-shell particles disposed in the matrix, wherein the particles each have an outer shell and a liquid metallic material as a core contained within the outer shell. The outer shell is frangible such that the liquid metallic material is released from at least some of the particles in response to a mechanical load applied to the composite and solidifies in-situ in the polymer matrix. As a result, the composite material can be self-strengthening and self-healing and can be reconfigurable in shape at ambient temperature.Type: ApplicationFiled: March 8, 2018Publication date: September 13, 2018Inventors: Martin M. Thuo, Boyce S. Chang