Patents by Inventor David Choi

David Choi 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).

  • Patent number: 12185767
    Abstract: An infused undergarment device for use as a delivery device for colonizing the vagina with Lactobacillus in patients who test positive for or report symptoms of vaginitis. The infused undergarment employs a sponge impregnated with Lactobacillus crispatus Freeze Dried Powder. The sponge, having channels to direct the powder, is held in place by a mesh fabric sewn into the groin portion of the undergarment, which allows the c n ay delivery of the powder. The undergarment may also be used to help maintain normal flora of the vagina in the absence of symptoms in a prophylactic manner to prevent future infection. The undergarment is sealed in an opaque aluminum foil package to prevent light and environment air from degrading effectiveness.
    Type: Grant
    Filed: November 4, 2022
    Date of Patent: January 7, 2025
    Assignee: Trillium Medical Products, LLC
    Inventors: Jay Sussman, David Choi
  • Patent number: 12168244
    Abstract: A method and system for nanoscale precision programmable profiling on substrates. Profiling material is dispensed on a substrate or a superstrate. The superstrate is brought in contact with the substrate. The profiling material is then cured after bringing the superstrate in contact with the substrate. The superstrate is separated from the substrate after curing. An optical metrology of points on the substrate corresponding to the final substrate profile is then performed.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: December 17, 2024
    Assignee: Board of Regents, The University of Texas System
    Inventors: Sidlgata V. Sreenivasan, Parth Pandya, David Choi, Shrawan Singhal, Lawrence Dunn
  • Publication number: 20230314672
    Abstract: A method for introducing a customized variation of a geometric parameter in a nanoscale pattern on a substrate. A nanoscale precision programmable profiling process is conducted on one or more regions of the substrate with the nanoscale pattern, where the nanoscale precision programmable profiling process is used to deposit a profiling film with a thickness profile that is a function of the customized variation of the geometric parameter in the nanoscale pattern. The method further comprises conducting a plasma etch process of the profiling film and the material of the nanoscale pattern that converts the thickness profile of the profiling film into the customized variation of the geometric parameter in the nanoscale pattern, where the customized variation is a function of the thickness profile of the profiling film.
    Type: Application
    Filed: June 7, 2021
    Publication date: October 5, 2023
    Inventors: Sidlgata V. Sreenivasan, David Choi, Parth Pandya, Shrawan Singhal
  • Patent number: 11708608
    Abstract: The invention relates to methods of treating a patient suffering from an IL-33-mediated disorder, such as asthma, comprising administering to the patient an IL-33 axis binding antagonist based on the genotype of the /L1RL1gene, the genotype of a polymorphism in genomic vicinity to the IL-33 gene, the expression level of periostin or the expression level of soluble ST2. The invention further relates to methods of determining whether a patient is at increased risk of an IL-33-mediated disorder, as well as methods of determining whether a patient suffering from such a disorder is likely to respond to a treatment comprising an IL-33 axis binding antagonist, based on the genotype of the /L1RL1gene the genotype of a polymorphism in genomic vicinity to the IL-33 gene, the expression level of periostin or the expression level of soluble ST2.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: July 25, 2023
    Assignee: Genentech, Inc.
    Inventors: Rajita Khosla, Vladimir Ramirez-Carrozzi, Tracy Staton, Brian Yaspan, Joseph Arron, David Choy, Amy Dressen
  • Publication number: 20230141346
    Abstract: An infused undergarment device for use as a delivery device for colonizing the vagina with Lactobacillus in patients who test positive for or report symptoms of vaginitis. The infused undergarment employs a sponge impregnated with Lactobacillus crispatus Freeze Dried Powder. The sponge, having channels to direct the powder, is held in place by a mesh fabric sewn into the groin portion of the undergarment, which allows the c n ay delivery of the powder, The undergarment may also be used to help maintain normal flora of the vagina in the absence of symptoms in a prophylactic manner to prevent future infection. The undergarment is sealed in an opaque aluminum foil package to prevent light and environment air from degrading effectiveness.
    Type: Application
    Filed: November 4, 2022
    Publication date: May 11, 2023
    Inventors: Jay Sussman, David Choi
  • Publication number: 20230088746
    Abstract: A method and system for nanoscale precision programmable profiling on substrates. Profiling material is dispensed on a substrate or a superstrate. The superstrate is brought in contact with the substrate. The profiling material is then cured after bringing the superstrate in contact with the substrate. The superstrate is separated from the substrate after curing. An optical metrology of points on the substrate corresponding to the final substrate profile is then performed.
    Type: Application
    Filed: February 25, 2021
    Publication date: March 23, 2023
    Inventors: Sidlgata V. Sreenivasan, Parth Pandya, David Choi, Shrawan Singhal, Lawrence Dunn
  • Patent number: 11317867
    Abstract: A physiological characteristic sensor assembly includes a flexible top housing including a needle port having a central opening, and a flexible lower housing defining a sensor bore through the lower housing, the sensor bore coaxial with the central opening of the needle port. The physiological characteristic sensor assembly also includes an electrical subsystem disposed between the top housing and the lower housing. The electrical subsystem includes a flexible printed circuit board having a sensor contact pad, a physiological characteristic sensor and an electrically conductive adhesive patch. The physiological characteristic sensor has a distal end that extends through the needle port and a proximal end that includes at least one electrical contact. The conductive adhesive patch electrically and physically couples the at least one electrical contact of the physiological characteristic sensor to the sensor contact pad of the flexible printed circuit board.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: May 3, 2022
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Ellis Garai, David Choy, David C. Antonio, Robert C. Mucic
  • Patent number: 11224361
    Abstract: A sensor introducer for a physiological characteristic sensor assembly includes a sensor introducer body that includes an outer housing that defines an opening to receive the physiological characteristic sensor assembly and an inner housing surrounded by the outer housing. The sensor introducer includes a cradle movable relative to the inner housing from a first position to a second position to deploy the physiological characteristic sensor assembly. The cradle has a cradle flange to receive the physiological characteristic sensor assembly and a cradle body that receives a needle assembly. The cradle body includes at least one locking projection that engages the inner housing to inhibit the movement of the cradle relative to the inner housing in the first position and the at least one locking projection is movable relative to the inner housing to enable the cradle to move from the first position to the second position.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: January 18, 2022
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Ellis Garai, David Choy, Robert C. Mucic, David C. Antonio
  • Patent number: 11066785
    Abstract: A method is provided for the improvement of fabric release in applications such as tissue and towel making processes. The method comprises applying a micro-emulsion of hydrophobic agents and surfactants to the surface of a structured fabric used in sheet making applications of a tissue machine.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: July 20, 2021
    Assignee: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Davit E. Sharoyan, Doeung David Choi
  • Publication number: 20200337608
    Abstract: A sensor introducer for a physiological characteristic sensor assembly includes a sensor introducer body that includes an outer housing that defines an opening to receive the physiological characteristic sensor assembly and an inner housing surrounded by the outer housing. The sensor introducer includes a cradle movable relative to the inner housing from a first position to a second position to deploy the physiological characteristic sensor assembly. The cradle has a cradle flange to receive the physiological characteristic sensor assembly and a cradle body that receives a needle assembly. The cradle body includes at least one locking projection that engages the inner housing to inhibit the movement of the cradle relative to the inner housing in the first position and the at least one locking projection is movable relative to the inner housing to enable the cradle to move from the first position to the second position.
    Type: Application
    Filed: April 23, 2019
    Publication date: October 29, 2020
    Inventors: Ellis Garai, David Choy, Robert C. Mucic, David C. Antonio
  • Publication number: 20200337642
    Abstract: A physiological characteristic sensor assembly includes a flexible top housing including a needle port having a central opening, and a flexible lower housing defining a sensor bore through the lower housing, the sensor bore coaxial with the central opening of the needle port. The physiological characteristic sensor assembly also includes an electrical subsystem disposed between the top housing and the lower housing. The electrical subsystem includes a flexible printed circuit board having a sensor contact pad, a physiological characteristic sensor and an electrically conductive adhesive patch. The physiological characteristic sensor has a distal end that extends through the needle port and a proximal end that includes at least one electrical contact. The conductive adhesive patch electrically and physically couples the at least one electrical contact of the physiological characteristic sensor to the sensor contact pad of the flexible printed circuit board.
    Type: Application
    Filed: April 23, 2019
    Publication date: October 29, 2020
    Inventors: Ellis Garai, David Choy, David C. Antonio, Robert C. Mucic
  • Publication number: 20200325627
    Abstract: A method is provided for the improvement of fabric release in applications such as tissue and towel making processes. The method comprises applying a micro-emulsion of hydrophobic agents and surfactants to the surface of a structured fabric used in sheet making applications of a tissue machine.
    Type: Application
    Filed: April 11, 2019
    Publication date: October 15, 2020
    Applicant: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Davit E. Sharoyan, Doeung David Choi
  • Publication number: 20180149779
    Abstract: The current invention provides for a composition and method for the improvement of fabric release in applications such as tissue and towel making processes. The method comprises treating the surface of a fabric in structured sheet making applications using compositions containing hydrophobic quaternary amines in combination with other hydrophobes and surfactants.
    Type: Application
    Filed: January 23, 2018
    Publication date: May 31, 2018
    Inventors: Doeung David Choi, Davit E. Sharoyan, Christopher P. Dilkus
  • Patent number: 9945076
    Abstract: The present invention provides for a method of producing a creped paper and the crepe paper products made using this method. The method includes treating the surface of a crepe fiber web and/or surface of a Yankee drum dryer or cylinder with compositions containing a combination of hydrophobes and surfactants and wherein these compositions have been subjected to physical treatments to reduce the mean particle size to about 1 micron (?m) or less.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: April 17, 2018
    Assignee: Solenis Technologies, L.P.
    Inventors: Doeung David Choi, Davit E Sharoyan, Jeffrey Allan Tunell
  • Patent number: 9674729
    Abstract: A bandwidth estimation algorithm on shared links detects peaks and/or average per-user bandwidth. Estimating is performed at the transport or IP layer with no assistance from lower layer (PHY, MAC, etc.) and the techniques can be used for any of adjusting the level of video optimization to the available bandwidth; driving QoS decisions at the transmitter based on available bandwidth; improving QoS enforcement during transitions among hybrid technologies on a wireless links; and correcting estimates on devices delivering bursty payload.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: June 6, 2017
    Assignee: Venturi Wireless, Inc.
    Inventors: Kanapathipillai Ketheesan, David Choi
  • Publication number: 20160168798
    Abstract: The present invention provides for a method of producing a creped paper and the crepe paper products made using this method. The method includes treating the surface of a crepe fiber web and/or surface of a Yankee drum dryer or cylinder with compositions containing a combination of hydrophobes and surfactants and wherein these compositions have been subjected to physical treatments to reduce the mean particle size to about 1 micron (?m) or less.
    Type: Application
    Filed: December 11, 2015
    Publication date: June 16, 2016
    Inventors: Doeung David Choi, Davit E. Sharoyan, Jeffrey Allan Tunell
  • Patent number: 9338674
    Abstract: A system for optimizing communications on a radio network by altering transitions between different link states that includes several modules. The activity, environment, and load module monitor monitors the link layer based on spectral-load metrics and radio-link metrics. The state transition control module determines when user equipment transitions between different states based on the type of user equipment, user equipment battery life, whether the user equipment is connected to an alternating current outlet, a spectral cost, and a backhaul cost. The channel state influencer module uses any of direct messages, ping messages, and keep-alive messages to influence the link state. The policy and preference handler enables or disables transitions based on the bearer technology type, the type of user equipment, the user's subscription plan, and the load level on the network.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: May 10, 2016
    Assignee: Venturi Wireless, Inc.
    Inventors: Kanapathipillai Ketheesan, Krishna Ramadas, Chico Jayanathan, David Choi
  • Patent number: 9121137
    Abstract: A dispersible article and methods of making the same. The article has a web of fibers and a dried binder in contact with the fibers. The web of fibers has a basis weight of from about 10 gsm to about 150 gsm. The dried binder has a polyfunctional aldehyde and a primary polymer. The primary polymer has at least one functional group that is reactive with the fibers or the polyfunctional aldehyde. The fibers have at least one functional group that is reactive with the polyfunctional aldehyde or the primary polymer. The article has a cross direction wet tensile strength after 15 minutes of aqueous saturation that is at least about 30% of an initial cross direction wet tensile strength. The article is flushable.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: September 1, 2015
    Assignees: SELLARS ABSORBENT MATERIALS, INC., SOLENIS TECHNOLOGIES, L.P.
    Inventors: Helen Viazmensky, Martyn Reginald Searle Davis, Richard J. Riehle, Marc Christopher Putnam, Joel E. Goldstein, Jerry Ballas, Doeung David Choi
  • Publication number: 20150124603
    Abstract: A bandwidth estimation algorithm on shared links detects peaks and/or average per-user bandwidth. Estimating is performed at the transport or IP layer with no assistance from lower layer (PHY, MAC, etc.) and the techniques can be used for any of adjusting the level of video optimization to the available bandwidth; driving QoS decisions at the transmitter based on available bandwidth; improving QoS enforcement during transitions among hybrid technologies on a wireless links; and correcting estimates on devices delivering bursty payload.
    Type: Application
    Filed: January 9, 2015
    Publication date: May 7, 2015
    Inventors: Kanapathipillai Ketheesan, David Choi
  • Publication number: 20150092589
    Abstract: A system for optimizing communications on a radio network by altering transitions between different link states that includes several modules. The activity, environment, and load module monitor monitors the link layer based on spectral-load metrics and radio-link metrics. The state transition control module determines when user equipment transitions between different states based on the type of user equipment, user equipment battery life, whether the user equipment is connected to an alternating current outlet, a spectral cost, and a backhaul cost. The channel state influencer module uses any of direct messages, ping messages, and keep-alive messages to influence the link state. The policy and preference handler enables or disables transitions based on the bearer technology type, the type of user equipment, the user's subscription plan, and the load level on the network.
    Type: Application
    Filed: December 11, 2014
    Publication date: April 2, 2015
    Inventors: Kanapathipillai Ketheesan, Krishna Ramadas, Chico Jayanathan, David Choi