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).

  • Publication number: 20240101460
    Abstract: 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: Application
    Filed: April 7, 2022
    Publication date: March 28, 2024
    Inventors: D. Yogi GOSWAMI, Martina LEVENI, Eydhah ALMATRAFI
  • Publication number: 20230365849
    Abstract: 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: Application
    Filed: July 11, 2023
    Publication date: November 16, 2023
    Inventors: Jaspreet Dhau, D. Yogi Goswami, Chand K. Jotshi, Elias K. Stefanakos
  • Patent number: 11732171
    Abstract: 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: Grant
    Filed: December 10, 2019
    Date of Patent: August 22, 2023
    Assignee: UNIVERSITY OF SOUTH FLORIDA
    Inventors: Jaspreet Dhau, D. Yogi Goswami, Chand K. Jotshi, Elias K. Stefanakos
  • Patent number: 11650474
    Abstract: 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: Grant
    Filed: July 21, 2022
    Date of Patent: May 16, 2023
    Assignee: UNIVERSITY OF SOUTH FLORIDA
    Inventors: Manoj K. Ram, Sharan Kumar Indrakar, D. Yogi Goswami, Lee K. Stefanakos
  • Publication number: 20220357628
    Abstract: 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: Application
    Filed: July 21, 2022
    Publication date: November 10, 2022
    Inventors: Manoj K. Ram, Sharan Kumar Indrakar, D. Yogi Goswami, Lee K. Stefanakos
  • Patent number: 11480161
    Abstract: 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: Grant
    Filed: April 13, 2021
    Date of Patent: October 25, 2022
    Assignee: UNIVERSITY OF SOUTH FLORIDA
    Inventors: D. Yogi Goswami, Diego Guillen, Marco Sanjuan
  • Patent number: 11402720
    Abstract: 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: Grant
    Filed: September 3, 2019
    Date of Patent: August 2, 2022
    Assignee: UNIVERSITY OF SOUTH FLORIDA
    Inventors: Manoj K. Ram, Sharan Kumar Indrakar, D. Yogi Goswami, Lee K. Stefanakos
  • Patent number: 11385482
    Abstract: 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: Grant
    Filed: July 29, 2020
    Date of Patent: July 12, 2022
    Assignee: University of South Florida
    Inventors: Manoj Kumar Ram, D. Yogi Goswami, Lee K. Stefanakos
  • Patent number: 11079649
    Abstract: 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: Grant
    Filed: October 15, 2015
    Date of Patent: August 3, 2021
    Assignees: UNIVERSITY OF SOUTH FLORIDA, UNITED STATES DEPARTMENT OF ENERGY
    Inventors: Manoj Kumar Ram, D. Yogi Goswami, Elias K. Stefanakos
  • Publication number: 20200355947
    Abstract: 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: Application
    Filed: July 29, 2020
    Publication date: November 12, 2020
    Inventors: Manoj Kumar Ram, D. Yogi Goswami, Lee K. Stefanakos
  • Patent number: 10739620
    Abstract: 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: Grant
    Filed: July 26, 2018
    Date of Patent: August 11, 2020
    Assignee: University of South Florida
    Inventors: Manoj Kumar Ram, D. Yogi Goswami, Lee K. Stefanakos
  • Publication number: 20200172784
    Abstract: 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: Application
    Filed: December 10, 2019
    Publication date: June 4, 2020
    Applicant: University of South Florida
    Inventors: Jaspreet Dhau, D. Yogi Goswami, Chand K. Jotshi, Elias K. Stefanakos
  • Patent number: 10501668
    Abstract: 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: Grant
    Filed: August 22, 2017
    Date of Patent: December 10, 2019
    Assignee: University of South Florida
    Inventors: Jaspreet Dhau, D. Yogi Goswami, Chand K. Jotshi, Elias K. Stefanakos
  • Patent number: 10416524
    Abstract: 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: Grant
    Filed: April 25, 2017
    Date of Patent: September 17, 2019
    Assignee: University of South Florida
    Inventors: Manoj K. Ram, Sharan Kumar Indrakar, D. Yogi Goswami, Lee K. Stefanakos
  • Publication number: 20190033625
    Abstract: 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: Application
    Filed: July 26, 2018
    Publication date: January 31, 2019
    Inventors: Manoj Kumar Ram, D. Yogi Goswami, Lee K. Stefanakos
  • Patent number: 10053374
    Abstract: 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: Grant
    Filed: August 16, 2013
    Date of Patent: August 21, 2018
    Assignee: University of South Florida
    Inventors: Chennan Li, D. Yogi Goswami, Elias K. Stefanakos
  • Publication number: 20180016482
    Abstract: 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: Application
    Filed: August 22, 2017
    Publication date: January 18, 2018
    Applicant: University of South Florida
    Inventors: Jaspreet Dhau, D. Yogi Goswami, Chand K. Jotshi, Elias K. Stefanakos
  • Patent number: 9684218
    Abstract: 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: Grant
    Filed: November 7, 2013
    Date of Patent: June 20, 2017
    Assignee: University of South Florida
    Inventors: Manoj Kumar Ram, Elias K. Stefanakos, D. Yogi Goswami
  • Patent number: 9376937
    Abstract: 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: Grant
    Filed: August 22, 2012
    Date of Patent: June 28, 2016
    Assignee: University of South Florida
    Inventors: D. Yogi Goswami, Huijuan Chen, Elias Stefanakos
  • Publication number: 20130213040
    Abstract: 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: Application
    Filed: August 22, 2012
    Publication date: August 22, 2013
    Applicant: UNIVERSITY OF SOUTH FLORIDA
    Inventors: D. Yogi Goswami, Huijuan Chen, Elias Stefanakos