Patents by Inventor Sumitava De

Sumitava De 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: 20230348834
    Abstract: A packed-bed bioreactor is provided that includes: a vessel having an interior cavity defined by an outer wall; and a center column disposed within the interior cavity. The center column includes a columnar sidewall defining an inner region within the center column, the columnar sidewall separating the inner region from an outer region within the interior cavity. The bioreactor further includes a cell culture substrate disposed in the outer region of the cavity, the cell culture substrate surrounding the center column; at least one port extending through the vessel for at least one supply and removal of media to or from the interior cavity; and a fountain head element disposed above the center column.
    Type: Application
    Filed: October 30, 2020
    Publication date: November 2, 2023
    Inventors: Sumitava De, Abhijit Rao, Ryann Loren Russell, Yujian Sun
  • Publication number: 20230124478
    Abstract: A sintered electrode for a battery, the sintered electrode having a first surface positioned to face a current collector and a second surface positioned to face an electrolyte layer, such that the sintered electrode includes: a first phase and a second phase, such that: the first phase has a lithium compound, and the second phase has at least one of a porous structure or solid-state Li-ion conductors, and such that: a thickness of the sintered electrode between the first surface and the second surface ranges between 10 ?m and 200 ?m.
    Type: Application
    Filed: March 26, 2021
    Publication date: April 20, 2023
    Inventors: Sumitava De, Cameron Wayne Tanner
  • Patent number: 11524920
    Abstract: An optical fiber coating apparatus that provides increased gyre stability and reduced gyre strength, thereby providing a more reliable coating application process during fiber drawing includes a cone-only coating die having a conical entrance portion with a tapered wall angled at a half angle ?, wherein 2°???25°, and a cone height L1 less than 2.2 mm, and a cylindrical portion having an inner diameter of d2, wherein 0.1 mm?d2?0.5 mm and a cylindrical height of L2, wherein 0.05 mm?L2?1.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: December 13, 2022
    Assignee: Corning Incorporated
    Inventors: Sumitava De, Robert Clark Moore, Douglas Gregg Neilson, Pushkar Tandon
  • Patent number: 11440839
    Abstract: An optical fiber coating apparatus that provides increased gyre stability and reduced gyre strength, thereby providing a more reliable coating application process during fiber drawing includes a cone-only coating die having a conical entrance portion with a tapered wall angled at a half angle ?, wherein 2°???25°, and a cone height L1 less than 2.2 mm, and a cylindrical portion having an inner diameter of d2, wherein 0.1 mm?d2?0.5 mm and a cylindrical height of L2, wherein 0.05 mm?L2?1.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: September 13, 2022
    Assignee: Corning Incorporated
    Inventors: Sumitava De, Robert Clark Moore, Douglas Gregg Neilson, Pushkar Tandon
  • Patent number: 11136542
    Abstract: A perfusion bioreactor and a method for using the perfusion bioreactor for performing a continuous cell culture are disclosed. The perfusion bioreactor includes an outer vessel having a housing with a gas permeable membrane, an opening and a cavity; an inner vessel within the cavity; and a lid to cover the opening. A porous membrane within the cavity divides the cavity into inner and outer compartments. A fresh media port extends through the outer vessel or the at least one lid to receive a fresh media tube that has an end located in the inner compartment. A spent media port extends through the outer vessel or the at least one lid to receive a spent media tube that has an end located in the outer compartment. A mixer is within the inner compartment, and the porous membrane is attached to an opening within the inner vessel.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: October 5, 2021
    Assignee: Corning Incorporated
    Inventors: Sumitava De, Yulong Hong, Nikolaos Pantelis Kladias, Shawn Michael O'Malley, Aravind Raghavan Rammohan, Po Ki Yuen
  • Publication number: 20210087107
    Abstract: An optical fiber coating apparatus that provides increased gyre stability and reduced gyre strength, thereby providing a more reliable coating application process during fiber drawing includes a cone-only coating die having a conical entrance portion with a tapered wall angled at a half angle ?, wherein 2°???25°, and a cone height L1 less than 2.2 mm, and a cylindrical portion having an inner diameter of d2, wherein 0.1 mm?d2?0.5 mm and a cylindrical height of L2, wherein 0.05 mm?L2?1.
    Type: Application
    Filed: December 4, 2020
    Publication date: March 25, 2021
    Inventors: Sumitava De, Robert Clark Moore, Douglas Gregg Neilson, Pushkar Tandon
  • Publication number: 20210087108
    Abstract: An optical fiber coating apparatus that provides increased gyre stability and reduced gyre strength, thereby providing a more reliable coating application process during fiber drawing includes a cone-only coating die having a conical entrance portion with a tapered wall angled at a half angle ?, wherein 2°???25°, and a cone height L1 less than 2.2 mm, and a cylindrical portion having an inner diameter of d2, wherein 0.1 mm?d2?0.5 mm and a cylindrical height of L2, wherein 0.05 mm?L2?1.
    Type: Application
    Filed: December 4, 2020
    Publication date: March 25, 2021
    Inventors: Sumitava De, Robert Clark Moore, Douglas Gregg Neilson, Pushkar Tandon
  • Patent number: 10882782
    Abstract: An optical fiber coating apparatus that provides increased gyre stability and reduced gyre strength, thereby providing a more reliable coating application process during fiber drawing includes a cone-only coating die having a conical entrance portion with a tapered wall angled at a half angle ?, wherein 2°???25°, and a cone height L1 less than 2.2 mm, and a cylindrical portion having an inner diameter of d2, wherein 0.1 mm?d2?0.5 mm and a cylindrical height of L2, wherein 0.05 mm?L2?1.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: January 5, 2021
    Assignee: Corning Incorporated
    Inventors: Sumitava De, Robert Clark Moore, Douglas Gregg Neilson, Pushkar Tandon
  • Publication number: 20190048305
    Abstract: The present disclosure generally relates to the bioprocess field and, in particular, to a perfusion bioreactor and a method for using the perfusion bioreactor for performing a continuous cell culture.
    Type: Application
    Filed: February 13, 2017
    Publication date: February 14, 2019
    Applicant: Corning Incorporated
    Inventors: Sumitava De, Yulong Hong, Nikolaos Pantelis Kladias, Shawn Michael O'Malley, Aravind Raghaven Rammohan, Po Ki Yuen
  • Patent number: 10037395
    Abstract: A computer-implemented method for modeling the amount of current discharged by a battery is provided. The method is implemented by a computing device communicatively coupled with a memory, and includes generating, by the computing device, a model of at least one battery cell comprising a positive electrode region, a negative electrode region, and a separator region. The method also includes transforming the positive electrode region, the negative electrode region, and the separator region of the battery into a single region in the model. In addition, the method includes generating, by the computing device, a plurality of trial functions associated with the single region, and determining, by the computing device, the amount of current discharged from the battery cell based on the trial functions.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: July 31, 2018
    Assignee: Washington University
    Inventors: Venkat Subramanian, Venkatasailanathan Ramdesigan, Paul Northrop, Sumitava De, Bharat Kumar Suthar, Matthew Lawder
  • Publication number: 20180208504
    Abstract: An optical fiber coating apparatus that provides increased gyre stability and reduced gyre strength, thereby providing a more reliable coating application process during fiber drawing includes a cone-only coating die having a conical entrance portion with a tapered wall angled at a half angle ?, wherein 2°???25°, and a cone height L1 less than 2.2 mm, and a cylindrical portion having an inner diameter of d2, wherein 0.1 mm?d2?0.5 mm and a cylindrical height of L2, wherein 0.05 mm?L2?1.
    Type: Application
    Filed: January 11, 2018
    Publication date: July 26, 2018
    Inventors: Sumitava De, Robert Clark Moore, Douglas Gregg Neilson, Pushkar Tandon
  • Publication number: 20140136169
    Abstract: A computer-implemented method for modeling the amount of current discharged by a battery is provided. The method is implemented by a computing device communicatively coupled with a memory, and includes generating, by the computing device, a model of at least one battery cell comprising a positive electrode region, a negative electrode region, and a separator region. The method also includes transforming the positive electrode region, the negative electrode region, and the separator region of the battery into a single region in the model. In addition, the method includes generating, by the computing device, a plurality of trial functions associated with the single region, and determining, by the computing device, the amount of current discharged from the battery cell based on the trial functions.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 15, 2014
    Inventors: Venkat Subramanian, Venkatasailanathan Ramdesigan, Paul Northrop, Sumitava De, Bharat Kumar Suthar, Matthew Lawder