Patents by Inventor Che Leung

Che Leung 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: 20220151681
    Abstract: A method and apparatus are disclosed for an RF guidewire for applying RF energy to create a channel through a region of tissue within a patient's body. The RF guidewire is configured to have a hydrophilic coating disposed thereon to reduce friction to facilitate traversal through vasculature while maintaining its mechanical, electrical and thermal properties. The RF guidewire includes an electrode tip at a distal end of the guidewire for delivering the energy and an electrically insulative thermal shield between the electrode tip and electrical insulation for thermally protecting the electrical insulation from heat produced by delivering the energy. Some embodiments include electrical insulation inside of the electrically insulative thermal shield.
    Type: Application
    Filed: January 13, 2022
    Publication date: May 19, 2022
    Inventors: Linus Hoi Che Leung, Mahban Samiee-Zafarghandy, Rund Abou-Marie, Taras Juzkiw, Gareth Davies, Maria Luk, Kelly Albert
  • Patent number: 11324819
    Abstract: Provided herein are compositions of CD1280 binding proteins and a Hepatitis B virus core antigen (HBcAg) and/or a Hepatitis B virus E antigen (HBeAg), or antigenic fragments or mutants thereof, attached to the CD180 binding protein, and methods for using the compositions to treat or limit the development of hepatitis-B virus (HBV)-related disorders.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: May 10, 2022
    Assignees: University of Washington, Abacus Bioscience, Inc.
    Inventors: Edward Clark, Deborah L. Fuller, Che-Leung Law, Amanda Mak
  • Publication number: 20220135674
    Abstract: Humanized antibodies, including masked antibodies that specifically bind to CD47 are provided. Methods for using anti-CD47 antibodies, including masked antibodies, to modulate activity of (e.g., inhibit proliferation of) a CD47-expressing cell, as well as for the treatment of one or more diseases or disorders (e.g., cancer) associated with CD47-expressing cells, are provided.
    Type: Application
    Filed: October 20, 2021
    Publication date: May 5, 2022
    Applicant: Seagen Inc.
    Inventors: Shyra Gardai, Matthew Levengood, Vivian Trang, Lori Westendorf, Christopher Carosino, Che Leung-Law, Michael Feldhaus
  • Publication number: 20220072275
    Abstract: An imaging marker for use with a catheter, the imaging marker comprising a plurality of segments including at least two stiff segments and at least one flexible segment, wherein for each pair of stiff segments, one of the flexible segments is located therebetween such that the flexible segment is operable to function as a hinge when the imaging marker is bent. In typical embodiments, the stiff segments are visible under a medical imaging system. In some embodiments, the stiff segments are comprised of a radiopaque material which is visible under an X-ray (fluoroscopy) imaging system.
    Type: Application
    Filed: November 17, 2021
    Publication date: March 10, 2022
    Inventors: Linus Hoi Che Leung, John Paul Urbanski, Glenn Arnold
  • Patent number: 11234761
    Abstract: A method and apparatus are disclosed for an RF guidewire for applying RF energy to create a channel through a region of tissue within a patient's body. The RF guidewire is configured to have a hydrophilic coating disposed thereon to reduce friction to facilitate traversal through vasculature while maintaining its mechanical, electrical and thermal properties.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: February 1, 2022
    Assignee: Baylis Medical Company Inc.
    Inventors: Linus Hoi Che Leung, Mahban Samiee-Zafarghandy, Rund Abou-Marie, Taras Juzkiw, Gareth Davies, Maria Luk, Kelly Albert
  • Patent number: 11213584
    Abstract: This invention relates methods of using a non-fucosylated anti-CD40 antibody for treatment of cancer and chronic infectious diseases.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: January 4, 2022
    Assignee: Seagen Inc.
    Inventors: Shyra Gardai, Che-Leung Law, Stanford Peng, Jing Yang, Haley Neff-LaFord
  • Patent number: 11202827
    Abstract: This invention relates methods of using a non-fucosylated anti-CD40 antibody for treatment of cancer and chronic infectious diseases.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: December 21, 2021
    Assignee: Seagen Inc.
    Inventors: Shyra Gardai, Che-Leung Law, Stanford Peng, Jing Yang, Haley Neff-LaFord, Thomas John Manley
  • Patent number: 11197978
    Abstract: An imaging marker for use with a catheter, the imaging marker comprising a plurality of segments including at least two stiff segments and at least one flexible segment, wherein for each pair of stiff segments, one of the flexible segments is located therebetween such that the flexible segment is operable to function as a hinge when the imaging marker is bent. In typical embodiments, the stiff segments are visible under a medical imaging system. In some embodiments, the stiff segments are comprised of a radiopaque material which is visible under an X-ray (fluoroscopy) imaging system.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: December 14, 2021
    Assignee: Baylis Medical Company Inc.
    Inventors: Linus Hoi Che Leung, John Paul Urbanski, Glenn Arnold
  • Patent number: 11180552
    Abstract: Humanized antibodies, including masked antibodies that specifically bind to CD47 are provided. Methods for using anti-CD47 antibodies, including masked antibodies, to modulate activity of (e.g., inhibit proliferation of) a CD47-expressing cell, as well as for the treatment of one or more diseases or disorders (e.g., cancer) associated with CD47-expressing cells, are provided.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: November 23, 2021
    Assignee: Seagen Inc.
    Inventors: Shyra Gardai, Matthew Levengood, Vivian Trang, Lori Westendorf, Christopher Carosino, Che Leung-Law, Michael Feldhaus
  • Publication number: 20200345838
    Abstract: Compositions including a CD180 binding ligand and a linked Hepatitis B antigen and their use are disclosed. The Hepatitis B antigen includes Hepatitis B virus pre-S1 and/or pre-S2 region of the HBV envelope protein (HBVpreS1/S2Ag), L-HBsAg, MHBsAg, S-HBsAg, or antigenic fragments or mutants thereof.
    Type: Application
    Filed: November 15, 2018
    Publication date: November 5, 2020
    Inventors: Edward A. CLARK, Che-Leung LAW, Deborah FULLER, Michael GALE
  • Publication number: 20200306367
    Abstract: Provided herein are compositions of CD1280 binding proteins and a Hepatitis B virus core antigen (HBcAg) and/or a Hepatitis B virus E antigen (HBeAg), or antigenic fragments or mutants thereof, attached to the CD180 binding protein, and methods for using the compositions to treat or limit the development of hepatitis-B virus (HBV)-related disorders.
    Type: Application
    Filed: November 22, 2016
    Publication date: October 1, 2020
    Inventors: Edward CLARK, Deborah L. FULLER, Che-Leung LAW, Amanda MAK
  • Publication number: 20190375841
    Abstract: Disclosed are antibodies, including antibody drug conjugates, that specifically bind to NTB-A. Also disclosed are methods for using the anti-NTB-A antibodies to detect or modulate activity of (e.g., inhibit proliferation of) an NTB-A-expressing cell, as well as for diagnoses or treatment of diseases or disorders (e.g., cancer) associated with NTB-A-expressing cells. Further disclosed is a method of treating multiple myeloma using an anti-NTB-A antibody drug conjugate, which optionally includes an anti-NTB-A antibody as disclosed herein.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 12, 2019
    Applicant: SEATTLE GENETICS, INC.
    Inventors: Timothy S. Lewis, Che-Leung Law
  • Patent number: 10435468
    Abstract: Disclosed are antibodies, including antibody drug conjugates, that specifically bind to NTB-A. Also disclosed are methods for using the anti-NTB-A antibodies to detect or modulate activity of (e.g., inhibit proliferation of) an NTB-A-expressing cell, as well as for diagnoses or treatment of diseases or disorders (e.g., cancer) associated with NTB-A-expressing cells. Further disclosed is a method of treating multiple myeloma using an anti-NTB-A antibody drug conjugate, which optionally includes an anti-NTB-A antibody as disclosed herein.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: October 8, 2019
    Assignee: Seattle Genetics, Inc.
    Inventors: Timothy S. Lewis, Che-Leung Law
  • Publication number: 20190255288
    Abstract: An imaging marker for use with a catheter, the imaging marker comprising a plurality of segments including at least two stiff segments and at least one flexible segment, wherein for each pair of stiff segments, one of the flexible segments is located therebetween such that the flexible segment is operable to function as a hinge when the imaging marker is bent. In typical embodiments, the stiff segments are visible under a medical imaging system. In some embodiments, the stiff segments are comprised of a radiopaque material which is visible under an X-ray (fluoroscopy) imaging system.
    Type: Application
    Filed: December 18, 2018
    Publication date: August 22, 2019
    Inventors: Linus Hoi Che Leung, John Paul Urbanski, Glenn Arnold
  • Publication number: 20190184029
    Abstract: The present invention is directed to methods for treating cancer comprising administering to a subject in need thereof an auristatin-based antibody drug conjugate and an inhibitor of the PI3K-AKT-mTOR pathway.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 20, 2019
    Inventors: Timothy S. Lewis, Che-Leung Law, Julie A. McEarchern
  • Publication number: 20190185561
    Abstract: Humanized antibodies, including masked antibodies that specifically bind to CD47 are provided. Methods for using anti-CD47 antibodies, including masked antibodies, to modulate activity of (e.g., inhibit proliferation of) a CD47-expressing cell, as well as for the treatment of one or more diseases or disorders (e.g., cancer) associated with CD47-expressing cells, are provided.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 20, 2019
    Applicant: Seattle Genetics, Inc.
    Inventors: Shyra Gardai, Matthew Levengood, Vivian Trang, Lori Westendorf, Christopher Carosino, Che Leung-Law, Michael Feldhaus
  • Patent number: 10201615
    Abstract: The present invention is directed to methods for treating cancer comprising administering to a subject in need thereof an auristatin-based antibody drug conjugate and an inhibitor of the PI3K-AKT-mTOR pathway.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: February 12, 2019
    Assignee: SEATTLE GENETICS, INC.
    Inventors: Timothy S. Lewis, Che-Leung Law, Julie A. McEarchern
  • Publication number: 20190015644
    Abstract: A method and apparatus are disclosed for an optimized transseptal procedure for providing left heart access, that reduces the number of devices that are used in order to minimize procedural time, complexity and cost. The apparatus comprises a hybrid dilator that comprises the combined functionality of a transseptal sheath and dilator assembly. The hybrid dilator comprises: a dilator shaft defining a lumen for receiving a crossing device therethrough, the dilator shaft being structured to provide support for the crossing device when the crossing device is used to create a puncture in a tissue; and a distal tip having an outer diameter which tapers down to an outer diameter of the crossing device for providing a smooth transition between the crossing device and the distal tip when the crossing device is inserted through the lumen and protrudes beyond the distal tip.
    Type: Application
    Filed: January 6, 2017
    Publication date: January 17, 2019
    Applicant: Baylis Medical Company Inc.
    Inventors: Melanie Thomspon Smith, Gareth Davies, Linus Hoi Che Leung
  • Patent number: 10173033
    Abstract: An imaging marker for use with a catheter, the imaging marker comprising a plurality of segments including at least two stiff segments and at least one flexible segment, wherein for each pair of stiff segments, one of the flexible segments is located therebetween such that the flexible segment is operable to function as a hinge when the imaging marker is bent. In typical embodiments, the stiff segments are visible under a medical imaging system. In some embodiments, the stiff segments are comprised of a radiopaque material which is visible under an X-ray (fluoroscopy) imaging system.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: January 8, 2019
    Assignee: Baylis Medical Company Inc.
    Inventors: Linus Hoi Che Leung, John Paul Urbanski, Glenn Arnold
  • Patent number: D854154
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: July 16, 2019
    Assignee: Baylis Medical Company Inc.
    Inventors: Oleksandr Barannyk, Jeffery Arnett, Lyndsay Stephenson, Linus Hoi Che Leung