Patents by Inventor David V. Schaffer

David V. Schaffer 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: 20240148882
    Abstract: The present disclosure provides methods of treating an ocular disease or disorder. The methods involve direct administration into the eye of a conjugate comprising a biologically active polypeptide and a biocompatible polymer.
    Type: Application
    Filed: June 21, 2023
    Publication date: May 9, 2024
    Inventors: Kevin E. Healy, Eda Isil Altiok, David V. Schaffer, Wesley M. Jackson
  • Publication number: 20240125764
    Abstract: The present disclosure provides a composition comprising a solid support, a plurality of tethered oligonucleotides attached to the solid support, and a plurality of untethered oligonucleotides hybridized to the tethered oligonucleotides. An untethered oligonucleotide can comprise, attached via the 5? end, a cell, or an effector molecule. Hybridization of an untethered oligonucleotide to a tethered oligonucleotide generates an enzyme cleavage site, which allows for temporally controlled removal of an effector molecule. The present disclosure provides methods of temporally modulating the activity and/or phenotype of a cell. The present disclosure provides a solid support comprising patterned tethered oligonucleotides attached thereto; and methods of making the solid support.
    Type: Application
    Filed: November 4, 2020
    Publication date: April 18, 2024
    Inventors: Lydia Lee Sohn, David V. Schaffer, Olivia J. Scheideler, Connor Andrew Tsuchida
  • Publication number: 20240091378
    Abstract: The present disclosure provides recombinant adeno-associated virus (AAV) virions with altered capsid protein, where the recombinant AAV (rAAV) virions exhibit greater ability to cross barriers between intravitreal fluid and retinal cells, and thus greater infectivity of a retinal cell compared to wild-type AAV, and where the rAAV virions comprise a heterologous nucleic acid. The present disclosure provides methods of delivering a gene product to a retinal cell in an individual.
    Type: Application
    Filed: February 10, 2023
    Publication date: March 21, 2024
    Inventors: David V. Schaffer, Leah C. Byrne, Timothy P. Day, John G. Flannery
  • Publication number: 20230323311
    Abstract: The present disclosure provides infectious recombinant adeno-associated virus (rAAV) virions that comprise a variant capsid protein and a heterologous nucleic acid. The present disclosure further provides the variant adeno-associated virus (AAV) capsid proteins (and/or a nucleic acid encoding the variant AAV capsid proteins), which confer to an infectious rAAV virion an increased resistance to human AAV neutralizing antibodies. The present disclosure further provides host cells comprising an infectious rAAV virion and/or a nucleic acid encoding a subject variant AAV capsid protein. The present disclosure further provides methods of delivering a heterologous nucleic acid to a target cell where the target cell is contacted with a subject infectious rAAV virion. The present disclosure further provides methods of delivering a gene product to an individual, the methods generally involving administering an effective amount of a subject rAAV virion to an individual in need thereof.
    Type: Application
    Filed: March 15, 2023
    Publication date: October 12, 2023
    Inventors: David V. Schaffer, Melissa A. Kotterman, Bum-Yeol Hwang, James T. Koerber
  • Publication number: 20230321282
    Abstract: The present disclosure provides adeno-associated virus (AAV) virions with altered capsid protein, where the AAV virions exhibit greater infectivity of retinal cells compared to wild-type AAV. The present disclosure further provides methods of delivering a gene product to a retinal cell in an individual, and methods of treating ocular disease.
    Type: Application
    Filed: December 14, 2022
    Publication date: October 12, 2023
    Inventors: David V. Schaffer, John G. Flannery, William A. Beltran, Leah C. Byrne, Meike Visel
  • Patent number: 11723982
    Abstract: The present disclosure provides methods of treating an ocular disease or disorder. The methods involve direct administration into the eye of a conjugate comprising a biologically active polypeptide and a biocompatible polymer.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: August 15, 2023
    Assignee: The Regents of the University of California
    Inventors: Kevin E. Healy, Eda Isil Altiok, David V. Schaffer, Wesley M. Jackson
  • Patent number: 11680249
    Abstract: The present disclosure provides recombinant adeno-associated virus virions with variant capsid protein, where the recombinant AAV (rAAV) virions exhibit one or more of increased ability to cross neuronal cell barriers, increased infectivity of a neural stem cell, increased infectivity of a neuronal cell, and reduced susceptibility to antibody neutralization, compared to a control AAV, and where the rAAV virions comprise a heterologous nucleic acid. The present disclosure provides methods of delivering a gene product to a neural stem cell or a neuronal cell in an individual. The present disclosure also provides methods of modifying a target nucleic acid present in a neural stem cell or neuronal cell.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: June 20, 2023
    Assignee: The Regents of the University of California
    Inventors: David V. Schaffer, David Stephen Ojala, Philip A. Romero
  • Patent number: 11634691
    Abstract: The present disclosure provides infectious recombinant adeno-associated virus (rAAV) virions that comprise a variant capsid protein and a heterologous nucleic acid. The present disclosure further provides the variant adeno-associated virus (AAV) capsid proteins (and/or a nucleic acid encoding the variant AAV capsid proteins), which confer to an infectious rAAV virion an increased resistance to human AAV neutralizing antibodies. The present disclosure further provides host cells comprising an infectious rAAV virion and/or a nucleic acid encoding a subject variant AAV capsid protein. The present disclosure further provides methods of delivering a heterologous nucleic acid to a target cell where the target cell is contacted with a subject infectious rAAV virion. The present disclosure further provides methods of delivering a gene product to an individual, the methods generally involving administering an effective amount of a subject rAAV virion to an individual in need thereof.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: April 25, 2023
    Assignee: The Regents of the University of California
    Inventors: David V. Schaffer, Melissa A. Kotterman, Bum-Yeol Hwang, James T. Koerber
  • Patent number: 11565001
    Abstract: The present disclosure provides adeno-associated virus (AAV) virions with altered capsid protein, where the AAV virions exhibit greater infectivity of retinal cells compared to wild-type AAV. The present disclosure further provides methods of delivering a gene product to a retinal cell in an individual, and methods of treating ocular disease.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: January 31, 2023
    Assignees: The Regents of the University of California, The Trustees of the University of Pennsylvania
    Inventors: David V. Schaffer, John G. Flannery, William A. Beltran, Leah C. Byrne, Meike Visel
  • Patent number: 11565000
    Abstract: The present disclosure provides adeno-associated virus (AAV) virions with altered capsid protein, where the AAV virions exhibit greater infectivity of retinal cells compared to wild-type AAV. The present disclosure further provides methods of delivering a gene product to a retinal cell in an individual, and methods of treating ocular disease.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: January 31, 2023
    Assignees: The Regents of the University of California, The Trustees of the University of Pennsylvania
    Inventors: David V. Schaffer, John G. Flannery, William A. Beltran, Leah C. Byrne, Meike Visel
  • Patent number: 11554180
    Abstract: The present disclosure provides adeno-associated virus (AAV) virions with altered capsid protein, where the AAV virions exhibit greater infectivity of retinal cells compared to wild-type AAV. The present disclosure further provides methods of delivering a gene product to a retinal cell in an individual, and methods of treating ocular disease.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: January 17, 2023
    Assignees: The Regents of the University of California, The Trustees of the University of Pennsylvania
    Inventors: David V. Schaffer, John G. Flannery, William A. Beltran, Leah C. Byrne, Meike Visel
  • Patent number: 11530421
    Abstract: Disclosed herein is a functional nucleic acid that includes i) one or more coding nucleotide sequences encoding a genome editing endonuclease; ii) regulatory sequences operably linked to the one or more coding nucleotide sequences; and iii) one or more genome editing endonuclease-recognized sequences, wherein the functional nucleic acid is configured to express the endonuclease in a host cell and thereby provide a cellular endonuclease activity in a sequence-specific manner in the host cell, and wherein cleavage of the functional nucleic acid by the endonuclease inactivates the cellular endonuclease activity. Methods of using the present functional nucleic acid, and systems and kits that find use in performing the same are also provided.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: December 20, 2022
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: David V. Schaffer, Benjamin Ezra Epstein
  • Publication number: 20220389390
    Abstract: The present disclosure provides infectious recombinant adeno-associated virus (rAAV) virions that comprise a variant capsid protein and a heterologous nucleic acid. The present disclosure further provides the variant adeno-associated virus (AAV) capsid proteins (and/or a nucleic acid encoding the variant AAV capsid proteins), which confer to an infectious rAAV virion an increased resistance to human AAV neutralizing antibodies. The present disclosure further provides host cells comprising an infectious rAAV virion and/or a nucleic acid encoding a subject variant AAV capsid protein. The present disclosure further provides methods of delivering a heterologous nucleic acid to a target cell where the target cell is contacted with a subject infectious rAAV virion. The present disclosure further provides methods of delivering a gene product to an individual, the methods generally involving administering an effective amount of a subject rAAV virion to an individual in need thereof.
    Type: Application
    Filed: April 20, 2022
    Publication date: December 8, 2022
    Inventors: David V. Schaffer, Melissa A. Kotterman, Bum-Yeol Hwang, James T. Koerber
  • Publication number: 20220362409
    Abstract: The present disclosure provides adeno-associated virus (AAV) virions with altered capsid protein, where the AAV virions exhibit greater infectivity of retinal cells compared to wild-type AAV. The present disclosure further provides methods of delivering a gene product to a retinal cell in an individual, and methods of treating ocular disease.
    Type: Application
    Filed: June 16, 2022
    Publication date: November 17, 2022
    Inventors: David V. Schaffer, John G. Flannery, William A. Beltran, Leah C. Byrne, Meike Visel
  • Publication number: 20220331451
    Abstract: The present disclosure provides adeno-associated virus (AAV) virions with altered capsid protein, where the AAV virions exhibit greater infectivity of retinal cells compared to wild-type AAV. The present disclosure further provides methods of delivering a gene product to a retinal cell in an individual, and methods of treating ocular disease.
    Type: Application
    Filed: June 16, 2022
    Publication date: October 20, 2022
    Inventors: David V. Schaffer, John G. Flannery, William A. Beltran, Leah C. Byrne, Meike Visel
  • Publication number: 20220331450
    Abstract: The present disclosure provides adeno-associated virus (AAV) virions with altered capsid protein, where the AAV virions exhibit greater infectivity of retinal cells compared to wild-type AAV. The present disclosure further provides methods of delivering a gene product to a retinal cell in an individual, and methods of treating ocular disease.
    Type: Application
    Filed: June 16, 2022
    Publication date: October 20, 2022
    Inventors: David V. Schaffer, John G. Flannery, William A. Beltran, Leah C. Byrne, Meike Visel
  • Publication number: 20220265763
    Abstract: The present invention provides polypeptide-polymer conjugates. A subject polypeptide-polymer conjugate is useful in a variety of applications, which are also provided.
    Type: Application
    Filed: March 8, 2022
    Publication date: August 25, 2022
    Inventors: Kevin Edward Healy, Samuel T. Wall, Krishanu Saha, David V. Schaffer
  • Publication number: 20220243291
    Abstract: The present disclosure provides adeno-associated virus (AAV) virions with altered capsid protein, where the AAV virions exhibit greater infectivity of retinal cells, when administered via intravitreal injection, compared to wild-type AAV. The present disclosure further provides methods of delivering a gene product to a retinal cell in an individual, and methods of treating ocular disease.
    Type: Application
    Filed: December 14, 2021
    Publication date: August 4, 2022
    Inventors: David V. SCHAFFER, Ryan R. KLIMCZAK, James T. KOERBER, John G. FLANNERY, Deniz DALKARA MOUROT, Meike Visel, Leah C.T. BYRNE
  • Publication number: 20220244184
    Abstract: Provided are systems and methods for spatially and temporally controlling light with an illumination device comprising a light source operably connected to a circuit board, one or more light guide plates, one or more optical masks, a controller, and a computer readable medium, comprising instructions that, when executed by the controller, cause the controller to: illuminate a cell or a substrate with light from the light source, and spatially and temporally control illumination of light to the cell or the substrate with one or more illumination parameters, wherein the one or more light guide plates provides uniform illumination of the light. Also provided herein are methods of screening using the system and/or device of the present disclosure.
    Type: Application
    Filed: May 6, 2020
    Publication date: August 4, 2022
    Inventors: David V. Schaffer, Nicole Anne Repina, Ruoxing Lei, Thomas Patrick C. McClave
  • Publication number: 20220228129
    Abstract: The present disclosure provides an in vitro mammalian cell that is genetically modified to provide for enhanced production of adeno-associated virus (AAV) virions. The mammalian cells can be used to produce AAV virions, e.g., recombinant AAV virions that include a heterologous nucleic acid encoding a gene product; the present disclosure thus provides methods for producing an AAV virion, which may be a recombinant AAV virion.
    Type: Application
    Filed: April 22, 2020
    Publication date: July 21, 2022
    Inventors: David V. Schaffer, Christopher Barnes, David Stephen Ojala