Patents by Inventor Li Ou

Li Ou 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: 20210371658
    Abstract: Novel compositions and systems for closure of wounds are disclosed. The compositions provide devices of improved flexibility and elasticity and are readily applied to wound sites or over wound closure devices. The present invention is also directed to a novel platinum catalyst for use in such compositions. The catalyst provides for rapid curing on topical surfaces such as skin and bonds to such surfaces in about 2-5 minutes.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 2, 2021
    Applicant: Ethicon, Inc.
    Inventor: Duan Li Ou
  • Publication number: 20210369276
    Abstract: Novel compositions and systems for closure of wounds are disclosed. The compositions provide devices of improved flexibility and elasticity and are readily applied to wound sites or over wound closure devices. The present invention is also directed to a novel platinum catalyst for use in such compositions. The catalyst provides for rapid curing on topical surfaces such as skin and bonds to such surfaces in about 2-5 minutes.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 2, 2021
    Applicant: Ethicon, Inc.
    Inventors: Duan Li Ou, Robert Rousseau, Leo B. Kriksunov, Julian Quintero
  • Publication number: 20210369258
    Abstract: A system for dispensing a curable composition includes a dual barrel syringe including a first syringe barrel with a first plunger, and a second syringe barrel with a second plunger. A static mixer is connected with distal ends of the first and second syringe barrels. The first and second plungers are moveable toward the distal ends of the first and second syringe barrels for expelling first and second components of a curable composition from the distal ends of the barrels into the static mixer for mixing the components to form the curable composition. A flexible spreader connected with a distal end of the static mixer has a flat dispensing opening, and a plurality of channels extending to the flat dispensing opening to dispense the curable composition. A hot gas blower generates a hot gas stream flowing distally over the distal end of the flexible spreader for curing the curable composition.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 2, 2021
    Inventors: Duan Li Ou, Frank Richard Cichocki, JR., Glenn R. Cook
  • Publication number: 20210371662
    Abstract: Novel compositions and systems for closure of wounds are disclosed. The compositions provide devices of improved flexibility and elasticity and are readily applied to wound sites or over wound closure devices. The present invention is also directed to a novel platinum catalyst for use in such compositions. The catalyst provides for rapid curing on topical surfaces such as skin and bonds to such surfaces in about 2-5 minutes.
    Type: Application
    Filed: May 24, 2021
    Publication date: December 2, 2021
    Applicant: Ethicon, Inc.
    Inventor: Duan Li Ou
  • Publication number: 20210369639
    Abstract: Novel compositions and systems for closure of wounds with antimicrobial effectiveness are disclosed. The compositions provide devices of improved flexibility and elasticity and are readily applied to wound sites or over wound closure devices. The present invention is also directed to a novel platinum catalyst for use in such compositions. The catalyst provides for rapid curing on topical surfaces such as skin and bonds to such surfaces in about 2-5 minutes.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 2, 2021
    Applicant: Ethicon, Inc.
    Inventor: Duan Li Ou
  • Publication number: 20210371596
    Abstract: Novel compositions and systems for closure of wounds with antimicrobial effectiveness are disclosed. The compositions provide devices of improved flexibility and elasticity and are readily applied to wound sites or over wound closure devices. The present invention is also directed to a novel platinum catalyst for use in such compositions. The catalyst provides for rapid curing on topical surfaces such as skin and bonds to such surfaces in about 2-5 minutes.
    Type: Application
    Filed: May 24, 2021
    Publication date: December 2, 2021
    Applicant: Ethicon, Inc.
    Inventors: Duan Li Ou, Leo Kriksunov, Julian Quintero
  • Publication number: 20210371190
    Abstract: An aerosol spray device includes a container having first and second fluid reservoirs disposed therein that are divided from one another. The first fluid reservoir holds a first mixture including a first aerosol propellant and a first part of a silicone based topical skin adhesive that is dissolved in the first aerosol propellant. The second fluid reservoir holds a second mixture including a second aerosol propellant and a second part of the silicone based topical skin adhesive that is dissolved in the second aerosol propellant. An aerosol spray dispensing system is connected with the container, which is configured to combine the first and second mixtures to form the silicone based topical skin adhesive and dispense the silicone based topical skin adhesive from the container as an aerosol spray.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 2, 2021
    Inventors: Duan Li Ou, Carolyn J. Mordas
  • Publication number: 20210353740
    Abstract: Embodiments of immunogenic conjugates including the HIV-1 Env fusion peptide and methods of their use and production are disclosed. In several embodiments, the immunogenic conjugates can be used to generate an immune response to HIV-1 Env in a subject, for example, to treat or prevent an HIV-1 infection in the subject.
    Type: Application
    Filed: September 23, 2019
    Publication date: November 18, 2021
    Applicant: The United States of America, as represented by the Secretary, Department of Health and Human Servic
    Inventors: Peter Kwong, Li Ou, John Mascola, Baoshan Zhang, Kai Xu, Wing-Pui Kong, Yaroslav Tsybovsky, Cara W. Chao, Jeffrey Boyington, Yiran Wang
  • Publication number: 20210353286
    Abstract: Systems and methods for coating surgical needles are provided.
    Type: Application
    Filed: July 28, 2021
    Publication date: November 18, 2021
    Inventors: Duan Li Ou, Frank Cichocki, Thien Nguyen
  • Patent number: 11174292
    Abstract: Embodiments of a recombinant Respiratory Syncytial Virus (RSV) F ectodomain trimer stabilized in a prefusion conformation are provided. Also disclosed are nucleic acids encoding the RSV F ectodomain trimer and methods of producing the RSV F ectodomain trimer. Methods for inducing an immune response in a subject are also disclosed. In some embodiments, the method can be a method for treating or preventing a RSV infection in a subject by administering a therapeutically effective amount of the recombinant RSV F ectodomain trimer to the subject.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: November 16, 2021
    Assignee: The United States of America, as represented by the Secretary, Department of Health and Human Services
    Inventors: Peter Kwong, Barney Graham, John Mascola, Li Ou, Aliaksandr Druz, Man Chen, Wing-Pui Kong, Ivelin Stefanov Georgiev, Emily Rundlet, Michael Gordon Joyce, Yaroslav Tsybovsky, Paul Thomas, Marie Pancera, Mallika Sastry, Cinque Soto, Joseph Van Galen, Guillaume Stewart-Jones, Yongping Yang, Baoshan Zhang, Ulrich Baxa
  • Patent number: 11161937
    Abstract: Provided are rapidly cross-linkable silicone compositions, systems, kits, and methods for filling implanted medical devices in situ, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; and a silicone cross-linker, where the rapidly cross-linkable silicone composition has a viscosity of ?150 cPs for ?1 min. post-preparation and ?300 cPs?5 min. post-preparation, at ambient temperature.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: November 2, 2021
    Assignee: ETHICON, INC.
    Inventors: Duan Li Ou, Leo B. Kriksunov, Lamar Kirchhevel, Clifford Dwyer
  • Patent number: 11160648
    Abstract: Provided are rapidly cross-linkable silicone foam compositions, kits, and methods for filling implanted medical devices in situ or in vivo, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; a silicone cross-linker; and a gas and/or gas-filled microcapsules, where the rapidly cross-linkable silicone foam composition has a viscosity of ?150 cPs for ?1 min. post-preparation and ?300 cPs?5 min. post-preparation, at ambient temperature.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: November 2, 2021
    Assignee: ETHICON, INC.
    Inventors: Duan Li Ou, Leo B. Kriksunov
  • Publication number: 20210330448
    Abstract: An implantable prosthesis includes a silicone shell having an apex, a base, a radius located between the apex and the base, and a dome extending between the apex and the radius. The silicone shell has an outer surface and an inner surface that surrounds an interior volume of the silicone shell. A silicone gel material is disposed within the interior volume of the silicone shell. A gelling enhancer layer containing a gelling enhancer covers the inner surface of the silicone shell. After the silicone gel material has been thermally cured, the silicone gel material that is located within a zone that is in the vicinity of the gelling enhancer layer has a higher level of cohesiveness than the silicone gel material that is located outside the zone. The gelling enhancer contains crosslinker and/or platinum catalyst, such as a Karstedt catalyst.
    Type: Application
    Filed: April 25, 2020
    Publication date: October 28, 2021
    Inventors: Joseph H. Contiliano, Krasimira Hristov, Duan Li Ou, Leo B. Kriksunov, Robert J. Tannhauser
  • Patent number: 11078239
    Abstract: Embodiments of a recombinant human Parainfluenza Virus (hPIV) F ectodomain trimer stabilized in a prefusion conformation are provided. Also disclosed are nucleic acids encoding the hPIV F ectodomain trimer and methods of producing the hPIV F ectodomain trimer. Methods for inducing an immune response in a subject are also disclosed. In some embodiments, the method can be a method for treating or inhibiting a hPIV infection in a subject by administering a effective amount of the recombinant hPIV F ectodomain trimer to the subject.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: August 3, 2021
    Assignees: The United States of America, as represented by the Secretary, Dept. of Health and Human Services, Institute for Research in Biomedicine
    Inventors: Baoshan Zhang, Guillaume Stewart-Jones, Tongqing Zhou, John Mascola, Kai Xu, Yongping Yang, Paul Thomas, Gwo-Yu Chuang, Li Ou, Peter Kwong, Yaroslav Tsybovsky, Wing-Pui Kong, Aliaksandr Druz, Davide Corti, Antonio Lanzavecchia
  • Publication number: 20210146015
    Abstract: A novel two-step process for batch coating surgical needles with cross-linked silicone coatings is disclosed. The surgical needles are cured using a two-step process. The coatings on the needles are partially cured in the first step and mechanically separated. The coatings on the needles are then fully cured in the second step.
    Type: Application
    Filed: November 24, 2020
    Publication date: May 20, 2021
    Applicant: Ethicon, Inc.
    Inventor: Duan Li Ou
  • Publication number: 20210130978
    Abstract: A low-hazardous electropolishing process has been developed to remove oxide layer(s) from the surface of nitinol needles. Low concentrations of citric acid and sulfamic acid are mixed with medium concentrations of sulfuric acid to use as an electrolyte solution. The process can be easily fitted into current suture needle manufacturing processes as well as into processes require electropolishing of nitinol-containing medical devices.
    Type: Application
    Filed: November 5, 2019
    Publication date: May 6, 2021
    Applicant: Ethicon LLC
    Inventor: Duan Li Ou
  • Patent number: 10934462
    Abstract: The invention describes compositions that include amine-containing silsesquioxane or an amine-containing alkyltrialkoxysilane and a thermoplastic elastomer as well as methods of preparation of the compositions that are useful as self-bonding adhesives for various substrates.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: March 2, 2021
    Assignee: Saint-Gobain Performance Plastics Corporatoin
    Inventor: Duan Li Ou
  • Patent number: 10874773
    Abstract: A novel two-step process for batch coating surgical needles with cross-linked silicone coatings is disclosed. The surgical needles are cured using a two-step process. The coatings on the needles are partially cured in the first step and mechanically separated. The coatings on the needles are then fully cured in the second step.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: December 29, 2020
    Assignee: Ethicon, Inc.
    Inventor: Duan Li Ou
  • Publication number: 20200391253
    Abstract: A non-hazardous cleaning solution/process has been developed to remove oxide residues from the surface of blackened needles. Low concentrations of citric acid solution are mixed with blackened needles and treated in an ultrasonic tank for short period of time (<5 minutes). The oxide residues are substantially removed. Quite surprisingly and unexpectedly, the penetration performance of the cleaned needles are greatly improved by up to 50% over other tested cleaning solutions.
    Type: Application
    Filed: June 12, 2019
    Publication date: December 17, 2020
    Applicant: Ethicon, Inc.
    Inventors: Duan Li Ou, Christophe Vailhe
  • Publication number: 20200268375
    Abstract: A needle and suture assembly includes a needle made of a superelastic alloy, such as Nitinol, including an elongated body having a proximal end and a distal end with a sharpened tip, a suture having a free end juxtaposed with the proximal end of the elongated body of the needle, and a connector disposed between the needle and the suture. The connector includes a first end attached to the proximal end of the elongated body of the needle and a second end attached to the free end of the suture. The connector is made of a material, such as stainless steel, having less elasticity and greater plasticity than the superelastic alloy of the needle.
    Type: Application
    Filed: February 22, 2019
    Publication date: August 27, 2020
    Inventors: Frank Richard Cichocki, JR., Christophe Vailhe, Thomas Nering, Alexander M. Cannara, Duan Li Ou