Patents by Inventor D. Yogi Goswami
D. Yogi Goswami 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: 20240101460Abstract: Disclosed herein is a solar thermal osmosis desalination system comprising a forward osmosis subsystem and a reverse osmosis subsystem where the forward osmosis subsystem is configured to receive solar thermal heat and generate power that can be used to operate the reverse osmosis subsystem.Type: ApplicationFiled: April 7, 2022Publication date: March 28, 2024Inventors: D. Yogi GOSWAMI, Martina LEVENI, Eydhah ALMATRAFI
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Publication number: 20230365849Abstract: In one embodiment, a phase change material is encapsulated by forming a phase change material pellet, coating the pellet with flexible material, heating the coated pellet to melt the phase change material, wherein the phase change materials expands and air within the pellet diffuses out through the flexible material, and cooling the coated pellet to solidify the phase change material.Type: ApplicationFiled: July 11, 2023Publication date: November 16, 2023Inventors: Jaspreet Dhau, D. Yogi Goswami, Chand K. Jotshi, Elias K. Stefanakos
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Patent number: 11732171Abstract: In one embodiment, a metal-plated polymer object includes a polymer surface, a first metal layer that has been applied to the polymer surface to render it electrically conductive, and a second metal layer that has been deposited on the first metal layer.Type: GrantFiled: December 10, 2019Date of Patent: August 22, 2023Assignee: UNIVERSITY OF SOUTH FLORIDAInventors: Jaspreet Dhau, D. Yogi Goswami, Chand K. Jotshi, Elias K. Stefanakos
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Patent number: 11650474Abstract: In one embodiment, a chromatic device includes a transparent conductive substrate, an active layer provided on the conductive substrate, the active layer comprising a conducting polymer, an electrolyte layer in contact with the conductive substrate and the active layer, the electrolyte comprising an oxidant and a salt but not comprising an acid, and a metal element configured to be selectively placed in and out of direct electrical contact with the conductive substrate or the active layer, wherein the active layer has a color that blocks light when the metal element is not in electrical contact with the conductive substrate but changes to a translucent color that transmits light when the metal element is placed in electrical contact with the conductive substrate or the active layer, wherein the active layer changes color without applying external energy to the active layer.Type: GrantFiled: July 21, 2022Date of Patent: May 16, 2023Assignee: UNIVERSITY OF SOUTH FLORIDAInventors: Manoj K. Ram, Sharan Kumar Indrakar, D. Yogi Goswami, Lee K. Stefanakos
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Publication number: 20220357628Abstract: In one embodiment, a chromatic device includes a transparent conductive substrate, an active layer provided on the conductive substrate, the active layer comprising a conducting polymer, an electrolyte layer in contact with the conductive substrate and the active layer, the electrolyte comprising an oxidant and a salt but not comprising an acid, and a metal element configured to be selectively placed in and out of direct electrical contact with the conductive substrate or the active layer, wherein the active layer has a color that blocks light when the metal element is not in electrical contact with the conductive substrate but changes to a translucent color that transmits light when the metal element is placed in electrical contact with the conductive substrate or the active layer, wherein the active layer changes color without applying external energy to the active layer.Type: ApplicationFiled: July 21, 2022Publication date: November 10, 2022Inventors: Manoj K. Ram, Sharan Kumar Indrakar, D. Yogi Goswami, Lee K. Stefanakos
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Patent number: 11480161Abstract: In one embodiment, a concentrated solar power system includes a solar tower, multiple solar receivers mounted to the solar tower at different vertical elevations, and a plurality of heliostats provided on the ground within a heliostat field, wherein each heliostat is configured to concentrate solar radiation on any of the solar receivers mounted to the solar tower.Type: GrantFiled: April 13, 2021Date of Patent: October 25, 2022Assignee: UNIVERSITY OF SOUTH FLORIDAInventors: D. Yogi Goswami, Diego Guillen, Marco Sanjuan
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Patent number: 11402720Abstract: In one embodiment, a chromatic device includes a transparent conductive substrate, an active layer provided on the conductive substrate, the active layer comprising a conducting polymer, an electrolyte layer in contact with the conductive substrate and the active layer, the electrolyte comprising an oxidant and a salt but not comprising an acid, and a metal element configured to be selectively placed in and out of direct electrical contact with the conductive substrate or the active layer, wherein the active layer has a color that blocks light when the metal element is not in electrical contact with the conductive substrate but changes to a translucent color that transmits light when the metal element is placed in electrical contact with the conductive substrate or the active layer, wherein the active layer changes color without applying external energy to the active layer.Type: GrantFiled: September 3, 2019Date of Patent: August 2, 2022Assignee: UNIVERSITY OF SOUTH FLORIDAInventors: Manoj K. Ram, Sharan Kumar Indrakar, D. Yogi Goswami, Lee K. Stefanakos
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Patent number: 11385482Abstract: Disclosed herein is a solid touchchromic device. The solid touchchromic device may include a conducting polymer or a conducting polymer composite film, a conducting plate, and a solid layer of a polymer-based electrolyte, the conducting plate being at least partially coated by the conducting polymer or the conducting polymer composite film. The solid touchchromic device may further include an oxidant, a salt, an acid, or a metal. Also included are methods of producing a solid touchchromic device and articles including a solid touchchromic device.Type: GrantFiled: July 29, 2020Date of Patent: July 12, 2022Assignee: University of South FloridaInventors: Manoj Kumar Ram, D. Yogi Goswami, Lee K. Stefanakos
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Patent number: 11079649Abstract: The subject invention pertains to color changeable, film materials comprising a metal substrate layer; a conducting polymer or conducting polymer composite layer; and an electrolyte layer. The conducting polymer or conducting polymer composite layer of the film material is capable of exhibiting changes in one or more optical properties when the film material is in contact with a metal. The subject invention also pertains to methods of preparing conducting polymer films capable of exhibiting changes in optical properties.Type: GrantFiled: October 15, 2015Date of Patent: August 3, 2021Assignees: UNIVERSITY OF SOUTH FLORIDA, UNITED STATES DEPARTMENT OF ENERGYInventors: Manoj Kumar Ram, D. Yogi Goswami, Elias K. Stefanakos
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Publication number: 20200355947Abstract: Disclosed herein is a solid touchchromic device. The solid touchchromic device may include a conducting polymer or a conducting polymer composite film, a conducting plate, and a solid layer of a polymer-based electrolyte, the conducting plate being at least partially coated by the conducting polymer or the conducting polymer composite film. The solid touchchromic device may further include an oxidant, a salt, an acid, or a metal. Also included are methods of producing a solid touchchromic device and articles including a solid touchchromic device.Type: ApplicationFiled: July 29, 2020Publication date: November 12, 2020Inventors: Manoj Kumar Ram, D. Yogi Goswami, Lee K. Stefanakos
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Patent number: 10739620Abstract: Disclosed herein is a solid touchchromic device. The solid touchchromic device may include a conducting polymer or a conducting polymer composite film, a conducting plate, and a solid layer of a polymer-based electrolyte, the conducting plate being at least partially coated by the conducting polymer or the conducting polymer composite film. The solid touchchromic device may further include an oxidant, a salt, an acid, or a metal. Also included are methods of producing a solid touchchromic device and articles including a solid touchchromic device.Type: GrantFiled: July 26, 2018Date of Patent: August 11, 2020Assignee: University of South FloridaInventors: Manoj Kumar Ram, D. Yogi Goswami, Lee K. Stefanakos
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Publication number: 20200172784Abstract: In one embodiment, a metal-plated polymer object includes a polymer surface, a first metal layer that has been applied to the polymer surface to render it electrically conductive, and a second metal layer that has been deposited on the first metal layer.Type: ApplicationFiled: December 10, 2019Publication date: June 4, 2020Applicant: University of South FloridaInventors: Jaspreet Dhau, D. Yogi Goswami, Chand K. Jotshi, Elias K. Stefanakos
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Patent number: 10501668Abstract: In one embodiment, a method for depositing metal on a polymer surface, the method includes coating the polymer surface with a binding metal to render the polymer surface solvophillic and/or hydrophilic and depositing a further metal on the binding metal-coated polymer surface.Type: GrantFiled: August 22, 2017Date of Patent: December 10, 2019Assignee: University of South FloridaInventors: Jaspreet Dhau, D. Yogi Goswami, Chand K. Jotshi, Elias K. Stefanakos
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Patent number: 10416524Abstract: In one embodiment, a chromatic device includes an active layer and an electrolyte layer in contact with the active layer, the electrolyte comprising an oxidant and a salt, wherein the active layer has a color that blocks light when metal is not in electrical contact with the active layer but changes to a translucent color that transmits light when metal is placed in electrical contact with the active layer, wherein the active layer changes color without applying electrical energy to the active layer.Type: GrantFiled: April 25, 2017Date of Patent: September 17, 2019Assignee: University of South FloridaInventors: Manoj K. Ram, Sharan Kumar Indrakar, D. Yogi Goswami, Lee K. Stefanakos
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Publication number: 20190033625Abstract: Disclosed herein is a solid touchchromic device. The solid touchchromic device may include a conducting polymer or a conducting polymer composite film, a conducting plate, and a solid layer of a polymer-based electrolyte, the conducting plate being at least partially coated by the conducting polymer or the conducting polymer composite film. The solid touchchromic device may further include an oxidant, a salt, an acid, or a metal. Also included are methods of producing a solid touchchromic device and articles including a solid touchchromic device.Type: ApplicationFiled: July 26, 2018Publication date: January 31, 2019Inventors: Manoj Kumar Ram, D. Yogi Goswami, Lee K. Stefanakos
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Patent number: 10053374Abstract: In one embodiment, a water desalination and power generation system includes a power generation subsystem, a water desalination subsystem, and an ejector that links the power generation subsystem and the water desalination subsystem, the ejector being adapted to entrain working fluid steam that has exited the water desalination subsystem into working fluid steam that has exited the power generation subsystem to generate mixed steam that drives the water desalination subsystem.Type: GrantFiled: August 16, 2013Date of Patent: August 21, 2018Assignee: University of South FloridaInventors: Chennan Li, D. Yogi Goswami, Elias K. Stefanakos
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Publication number: 20180016482Abstract: In one embodiment, a method for depositing metal on a polymer surface, the method includes coating the polymer surface with a binding metal to render the polymer surface solvophillic and/or hydrophilic and depositing a further metal on the binding metal-coated polymer surface.Type: ApplicationFiled: August 22, 2017Publication date: January 18, 2018Applicant: University of South FloridaInventors: Jaspreet Dhau, D. Yogi Goswami, Chand K. Jotshi, Elias K. Stefanakos
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Patent number: 9684218Abstract: In one embodiment, a chromatic device includes an active layer and an electrolyte layer in contact with the active layer, wherein the active layer has an opaque color that blocks light but changes to a translucent color that transmits light when a metal object is placed in electrical contact with the active layer in the presence of the electrolyte layer.Type: GrantFiled: November 7, 2013Date of Patent: June 20, 2017Assignee: University of South FloridaInventors: Manoj Kumar Ram, Elias K. Stefanakos, D. Yogi Goswami
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Patent number: 9376937Abstract: A method and system for generating power from low- and mid-temperature heat sources using a zeotropic mixture as a working fluid. The zeotropic mixture working fluid is compressed to pressures above critical and heated to a supercritical state. The zeotropic mixture working fluid is then expanded to extract power. The zeotropic mixture working fluid is then condensed, subcooled, and collected for recirculation and recompression.Type: GrantFiled: August 22, 2012Date of Patent: June 28, 2016Assignee: University of South FloridaInventors: D. Yogi Goswami, Huijuan Chen, Elias Stefanakos
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Publication number: 20130213040Abstract: A method and system for generating power from low- and mid-temperature heat sources using a zeotropic mixture as a working fluid. The zeotropic mixture working fluid is compressed to pressures above critical and heated to a supercritical state. The zeotropic mixture working fluid is then expanded to extract power. The zeotropic mixture working fluid is then condensed, subcooled, and collected for recirculation and recompression.Type: ApplicationFiled: August 22, 2012Publication date: August 22, 2013Applicant: UNIVERSITY OF SOUTH FLORIDAInventors: D. Yogi Goswami, Huijuan Chen, Elias Stefanakos