Patents by Inventor Supratik Guha

Supratik Guha 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: 20240026528
    Abstract: A method of forming an inorganic film on a surface can include depositing a polymer at a layer on a surface, swelling the polymer with a solvent to produce a swollen polymer on the surface, infiltrating the swollen polymer with a precursor, removing the swollen polymer after infiltrating the swollen polymer with the precursor, and forming a porous inorganic film on the surface based on removing the swollen polymer.
    Type: Application
    Filed: July 22, 2023
    Publication date: January 25, 2024
    Inventors: Diana BERMAN, Elena V. SHEVCHENKO, Supratik GUHA
  • Publication number: 20230407235
    Abstract: A system and method for mechanical processing of cells includes using a frame (102) forming an inlet channel (104), an outlet channel (106), and a processing chamber (108) fluidly connected between the inlet and outlet channels, wherein the processing chamber includes an anvil surface (112) formed on the frame. A hammer (110) mounted on the frame has a processing surface disposed in opposed relation to the anvil surface. The hammer is configured to move relative to the anvil surface. An actuator connected to the frame and operably associated with the hammer operates to move the hammer relative to the anvil surface and in close proximity to the anvil surface, wherein the hammer operates between a retracted position in which the processing surface is at a distance from the anvil surface, and an extended position in which the processing surface abuts the anvil surface.
    Type: Application
    Filed: November 9, 2021
    Publication date: December 21, 2023
    Applicants: The University of Chicago, UChicago Argonne, LLC
    Inventors: Anindita BASU, Abhiteja KONDA, Pavani Vamsi Krishna NITTALA, Supratik GUHA
  • Publication number: 20230401471
    Abstract: This disclosure is directed to a methods and systems for establishing a long-range quantum link in a quantum communication network and for improving connection rate of the quantum link. The quantum link is established across multiple quantum repeaters relying on quantum entanglement swap operations in the multiple quantum repeaters. The methods and systems use nested connection loops that are started as soon as quantum repeater resources become available.
    Type: Application
    Filed: August 17, 2021
    Publication date: December 14, 2023
    Applicant: The University of Chicago
    Inventors: Manish Singh, Supratik Guha
  • Publication number: 20230392254
    Abstract: Polymers of intrinsic microporosity are used herein as polymer templates for forming mechanical robust inorganic porous coatings that can be beneficially used as anti-reflective coatings.
    Type: Application
    Filed: June 6, 2022
    Publication date: December 7, 2023
    Inventors: Elena Shevchenko, Supratik Guha, Zhongbo Zhang, Cheng Ji
  • Publication number: 20230332286
    Abstract: The disclosure relates to a method for forming a low refractive index layer on a substrate. The method generally includes (a) applying a block copolymer layer on a substrate, the block copolymer including a polar polymeric block and a non-polar polymeric block; (b) swelling the block copolymer layer with a solvent to increase the block copolymer layer thickness; (c) depositing a metal oxide or metalloid oxide layer on polar polymeric blocks of the block copolymer layer; and (d) removing the block copolymer layer from the substrate, thereby forming a porous metal oxide or metalloid oxide layer on the substrate.
    Type: Application
    Filed: June 20, 2023
    Publication date: October 19, 2023
    Inventors: Elena Shevchenko, Diana Berman, Supratik Guha
  • Patent number: 11725275
    Abstract: The disclosure relates to a method for forming a low refractive index layer on a substrate. The method generally includes (a) applying a block copolymer layer on a substrate, the block copolymer including a polar polymeric block and a non-polar polymeric block; (b) swelling the block copolymer layer with a solvent to increase the block copolymer layer thickness; (c) depositing a metal oxide or metalloid oxide layer on polar polymeric blocks of the block copolymer layer; and (d) removing the block copolymer layer from the substrate, thereby forming a porous metal oxide or metalloid oxide layer on the substrate.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: August 15, 2023
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Elena Shevchenko, Diana Berman, Supratik Guha
  • Publication number: 20230125317
    Abstract: This disclosure is directed to a high-speed avalanche photodiode device configured to detect single photons. The avalanche photodiode device may include a passive quenching circuitry. The passive quenching circuitry may include a quenching resistor having a resistivity spontaneously adaptive to a bias voltage applied across the quenching resistor. Such adaptive resistivity enables a fast response time for the avalanche photodiode device when used to detect single photos in Geiger mode.
    Type: Application
    Filed: March 2, 2021
    Publication date: April 27, 2023
    Inventors: Jiyuan Zheng, Supratik Guha, Joe C. Campbell
  • Patent number: 11619580
    Abstract: The present disclosure relates to systems and methods suitable to measure trace amounts of specific ions in fluid samples. An example system includes a resonator having an input coupler and an output coupler. The example system also includes an ion-selective membrane (ISM) optically coupled to at least a portion of the resonator. The system additionally includes a light source configured to illuminate the resonator by way of the input coupler. Furthermore, the system includes a detector configured to receive output light by way of the output coupler and provide information indicative a concentration of a specific ion proximate to tire ISM.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: April 4, 2023
    Assignees: The University of Chicago, UChicago Argonne, LLC
    Inventors: Xufeng Zhang, Supratik Guha, Tijana Rajh
  • Publication number: 20220136133
    Abstract: The present disclosure includes a thin film assembly comprising a substrate and an epitaxial crystalline thin film disposed on the substrate, wherein the epitaxial crystalline thin film is a single crystal, wherein at least a portion of the epitaxial crystalline thin film is doped with rare-earth ions at a concentration of less than 100 parts per billion. The disclosure further includes a method of manufacturing a thin film assembly, the method comprising creating, on a substrate and with use of molecular beam epitaxy, an epitaxial crystalline thin film doped with the rare-earth ions at a concentration of less than 100 parts per billion.
    Type: Application
    Filed: March 5, 2020
    Publication date: May 5, 2022
    Inventors: Manish SINGH, Tian ZHONG, Supratik GUHA
  • Patent number: 11143953
    Abstract: The invention relates to a method used in a photolithographic process comprising depositing a film of Atomic Layered Deposition (ALD) Al2O3 on a photomask, subjecting said film of Al2O3 on the photomask to a plasma treatment and then irradiating the deposited film of ALD Al2O3 on the coated photomask at a wavelength of 193 nm.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: October 12, 2021
    Assignee: International Business Machines Corporation
    Inventors: Robert L. Sandstrom, Peter H. Bartlau, Thomas B. Faure, Supratik Guha, Edward W. Kiewra, Louis M. Kindt, Alfred Wagner
  • Publication number: 20210310944
    Abstract: The present disclosure relates to systems and methods suitable to measure trace amounts of specific ions in fluid samples. An example system includes a resonator having an input coupler and an output coupler. The example system also includes an ion-selective membrane (ISM) optically coupled to at least a portion of the resonator. The system additionally includes a light source configured to illuminate the resonator by way of the input coupler. Furthermore, the system includes a detector configured to receive output light by way of the output coupler and provide information indicative a concentration of a specific ion proximate to tire ISM.
    Type: Application
    Filed: July 23, 2019
    Publication date: October 7, 2021
    Inventors: Xufeng Zhang, Supratik Guha, Tijana Rajh
  • Patent number: 11118815
    Abstract: Techniques for hybrid solar thermal and photovoltaic energy collection are provided. In one aspect, a photovoltaic concentrating thermal collector (PVCTC) includes: a thermal absorber collector; and bent solar panels forming a parabolic shaped trough reflector partially surrounding the thermal absorber collector so as to reflect incident light onto the thermal absorber collector. A PVCTC system including an array of PVCTC units and a method for hybrid electrical and thermal energy production are also provided.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: September 14, 2021
    Assignee: International Business Machines Corporation
    Inventors: Supratik Guha, Siyuan Lu, Theodore G. van Kessel
  • Patent number: 11035794
    Abstract: An optode has a planar radiation guiding medium having a first planar surface and a second planar surface and one or more perimeter surfaces bounded by the first and second planar surfaces. An excitation energy source of the optode is configured to output into the radiation guiding medium first energy at a wavelength selected to excite a fluorophore. The optode also includes a photodetector configured to image at least a portion of the first planar surface of the radiation guiding medium by detecting second energy transmitted through the radiation guiding medium.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 15, 2021
    Assignees: UCHICAGO ARGONNE, LLC, THE UNIVERSITY OF CHICAGO, THE MARINE BIOLOGICAL LABORATORY
    Inventors: Xufeng Zhang, Supratik Guha, Zoe G. Cardon
  • Publication number: 20210126192
    Abstract: The present disclosure describes devices, systems, and methods of manufacture that relate to cationic filamentary (CF) devices. An example CF device includes a first electrode, a second electrode, and an insulator. The first electrode includes an electrochemically inert material. The second electrode includes an electrochemically active material. The electrochemically active material includes Sn, An insulator disposed between the first electrode and the second electrode such that a positive voltage applied to the second electrode with respect to the first electrode causes formation of a conductive filament in the insulator extending from the second electrode toward the first electrode.
    Type: Application
    Filed: April 12, 2019
    Publication date: April 29, 2021
    Inventors: Sushant Sonde, Supratik Guha
  • Patent number: 10935514
    Abstract: Low power combustible gas sensors using a thermocouple design are provided. In one aspect, a combustible gas sensor includes: at least one first electrode; at least one second electrode formed from a dissimilar material from the first electrode; and a catalytic material at an active reaction junction between the first electrode and the second electrode, wherein the active reaction junction between the first electrode and the second electrode forms a thermocouple. A sensing device is including, e.g., multiple sensors, and a method for sensing combustible gas using the present sensors are also provided.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: March 2, 2021
    Assignee: International Business Machines Corporation
    Inventors: Josephine B. Chang, Talia S. Gershon, Supratik Guha, Hendrik F. Hamann, Jiaxing Liu, Theodore G. van Kessel
  • Publication number: 20200301270
    Abstract: The invention relates to a method used in a photolithographic process comprising depositing a film of Atomic layered Deposition (ALD) Al2O3 on a photomask, subjecting said film of Al2O3 on the photomask to a plasma treatment and then irradiating the deposited film of ALD Al2O3 on the coated photomask at a wavelength of 193 nm.
    Type: Application
    Filed: March 21, 2019
    Publication date: September 24, 2020
    Inventors: Robert L. Sandstrom, Peter H. Bartlau, Thomas B. Faure, Supratik Guha, Edward W. Kiewra, Louis M. Kindt, Alfred Wagner
  • Publication number: 20200249157
    Abstract: Systems and methods for performing refractometry include a primary waveguide, that has an injection end optically coupled to a laser and an output end optically coupled to a detector. A secondary waveguide has an interior, closed-loop optical path exhibiting total internal reflection, and an exterior surface having bound thereto a plurality of instances of a first binding entity type for an analyte. A portion of the exterior surface of the secondary waveguide is adjacent to the exterior surface of the primary waveguide, and a solution comprising a carrier fluid and an amplification complex includes a secondary particle bound to a second binding entity type for the analyte. The second binding entity type selected to bind to the analyte. The secondary particle is selected to have an index of refraction different from both the carrier fluid and the analyte.
    Type: Application
    Filed: February 1, 2019
    Publication date: August 6, 2020
    Inventors: Benjamin Diroll, Xufeng Zhang, Supratik Guha
  • Publication number: 20200103346
    Abstract: An optode has a planar radiation guiding medium having a first planar surface and a second planar surface and one or more perimeter surfaces bounded by the first and second planar surfaces. An excitation energy source of the optode is configured to output into the radiation guiding medium first energy at a wavelength selected to excite a fluorophore. The optode also includes a photodetector configured to image at least a portion of the first planar surface of the radiation guiding medium by detecting second energy transmitted through the radiation guiding medium.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 2, 2020
    Inventors: Xufeng Zhang, Supratik Guha, Zoe G. Cardon
  • Patent number: 10573814
    Abstract: Vacuum annealing-based techniques for forming perovskite materials are provided. In one aspect, a method of forming a perovskite material is provided. The method includes the steps of: depositing a metal halide layer on a sample substrate; and vacuum annealing the metal halide layer and methylammonium halide under conditions sufficient to form methylammonium halide vapor which reacts with the metal halide layer and forms the perovskite material on the sample substrate. A perovskite-based photovoltaic device and method of formation thereof are also provided.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: February 25, 2020
    Assignee: International Business Machines Corporation
    Inventors: Talia S. Gershon, Supratik Guha, Oki Gunawan, Teodor K. Todorov
  • Publication number: 20190372001
    Abstract: Provided herein are resistive switching devices comprising a nanocomposite, an inert electrode and an active electrode. Also provided are methods for preparing and using the disclosed resistive switching devices.
    Type: Application
    Filed: May 31, 2018
    Publication date: December 5, 2019
    Inventors: Bhaswar Chakrabarti, Leonidas E. Ocola, Supratik Guha, Sushant Sonde