Patents by Inventor David Schaffer

David 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: 20250163469
    Abstract: Provided herein are variant adeno-associated virus (AAV) capsid proteins having one or more modifications in amino acid sequence relative to a parental AAV capsid protein, which, when present in an AAV virion, confer increased infectivity of one or more types of muscle cells as compared to the infectivity of the muscle cells by an AAV virion comprising the unmodified parental AAV capsid protein. Also provided are recombinant AAV virions and pharmaceutical compositions thereof comprising a variant AAV capsid protein as described herein, methods of making these rAAV capsid proteins and virions, and methods for using these rAAV capsid proteins and virions in research and in clinical practice, for example in, e.g., the delivery of nucleic acid sequences to one or more muscle cells for the treatment of muscle disorders and diseases.
    Type: Application
    Filed: December 12, 2024
    Publication date: May 22, 2025
    Applicant: 4D MOLECULAR THERAPEUTICS INC.
    Inventors: David H. Kirn, Melissa KOTTERMAN, David SCHAFFER
  • Patent number: 12221616
    Abstract: Provided herein are variant adeno-associated virus (AAV) capsid proteins having one or more modifications in amino acid sequence relative to a parental AAV capsid protein, which, when present in an AAV virion, confer increased infectivity of one or more types of muscle cells as compared to the infectivity of the muscle cells by an AAV virion comprising the unmodified parental AAV capsid protein. Also provided are recombinant AAV virions and pharmaceutical compositions thereof comprising a variant AAV capsid protein as described herein, methods of making these rAAV capsid proteins and virions, and methods for using these rAAV capsid proteins and virions in research and in clinical practice, for example in, e.g., the delivery of nucleic acid sequences to one or more muscle cells for the treatment of muscle disorders and diseases.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: February 11, 2025
    Assignee: AD Molecular Therapeutics Inc.
    Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
  • Patent number: 12192587
    Abstract: Techniques are disclosed for curating content items. In some embodiments, a content item group generator applies rules defining inclusion and exclusion criteria to content items and associated metadata in order to assign the content items to content item groups. Given the assignments of content items to content item groups, a list generator applies a machine learning technique to generate, for each content item, a representation of the content item that includes weights associating the content item with the content item groups. The list generator then computes a weighted sum of representations of content items that a user has purchased and/or otherwise engaged with in order to generate a representation of the user that includes weights indicating affinities of the user with the content item groups. The list generator further generates one or more lists for display to the user based on the representation of the user.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: January 7, 2025
    Assignee: Disney Enterprises, Inc.
    Inventors: Madhav Thaker, Warren Michael Bruttell, Michael Halleen, Joshua David Schaffer, Meghan Melanie Toomayan
  • Publication number: 20240335560
    Abstract: Provided herein are variant adeno-associated virus (AAV) capsid proteins having one or more modifications in amino acid sequence relative to a parental AAV capsid protein, which, when present in an AAV virion, confer increased infectivity of one or more types of retinal cells as compared to the infectivity of the retinal cells by an AAV virion comprising the unmodified parental AAV capsid protein. Also provided are recombinant AAV virions and pharmaceutical compositions thereof comprising a variant AAV capsid protein as described herein, methods of making these rAAV capsid proteins and virions, and methods for using these rAAV capsid proteins and virions in research and in clinical practice, for example in, e.g., the delivery of nucleic acid sequences to one or more cells of the retina, for the treatment of retinal disorders and diseases.
    Type: Application
    Filed: September 13, 2023
    Publication date: October 10, 2024
    Applicant: 4D MOLECULAR THERAPEUTICS INC
    Inventors: David H. Kirn, Melissa KOTTERMAN, David SCHAFFER, Paul SZYMANSKI, Peter FRANCIS
  • Patent number: 11939355
    Abstract: The present disclosure provides AAV variants that exhibit a preference for retrograde movement in neurons and methods of using such variants.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: March 26, 2024
    Assignee: Howard Hughes Medical Institute
    Inventors: Joshua Dudman, Adam Hantman, Bum-Yeol Hwang, Alla Karpova, Loren Looger, Kimberly Ritola, David Schaffer, Dougal Gowanlock Robinson Tervo, Sarada Viswanathan
  • Publication number: 20240066145
    Abstract: Provided herein are variant adeno-associated virus (AAV) capsid proteins having one or more modifications in amino acid sequence relative to a parental AAV capsid protein, which, when present in an AAV virion, confer increased infectivity of one or more types of retinal cells as compared to the infectivity of the retinal cells by an AAV virion comprising the unmodified parental AAV capsid protein. Also provided are recombinant AAV virions and pharmaceutical compositions thereof comprising a variant AAV capsid protein as described herein, methods of making these rAAV capsid proteins and virions, and methods for using these rAAV capsid proteins and virions in research and clinical practice, for example in, e.g., the delivery of nucleic acid sequences to one or more cells of the retina for the treatment of retinal disorders and diseases.
    Type: Application
    Filed: August 10, 2023
    Publication date: February 29, 2024
    Applicant: 4D MOLECULAR THERAPEUTICS INC.
    Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
  • Publication number: 20240018498
    Abstract: The present disclosure provides codon optimized nucleotide sequences encoding hum n alpha-galactosidase A, vectors, and host cells comprising codon optimized alpha-galactosidase A sequences, and methods of treating disorders such as Fabry disease comprising administering to the subject a codon optimized sequence encoding human alpha-galactosidase A.
    Type: Application
    Filed: September 8, 2023
    Publication date: January 18, 2024
    Applicant: 4D MOLECULAR THERAPEUTICS INC.
    Inventors: David H. KIRN, Melissa KOTTERMAN, Peter FRANCIS, David SCHAFFER, Paul SZYMANSKI, Kevin WHITTLESEY
  • Patent number: 11840704
    Abstract: Provided herein are variant adeno-associated virus (AAV) capsid proteins having one or more modifications in amino acid sequence relative to a parental AAV capsid protein, which, when present in an AAV virion, confer increased infectivity of one or more types of muscle cells as compared to the infectivity of the muscle cells by an AAV virion comprising the unmodified parental AAV capsid protein. Also provided are recombinant AAV virions and pharmaceutical compositions thereof comprising a variant AAV capsid protein as described herein, methods of making these rAAV capsid proteins and virions, and methods for using these rAAV capsid proteins and virions in research and in clinical practice, for example in, e.g., the delivery of nucleic acid sequences to one or more muscle cells for the treatment of muscle disorders and diseases.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: December 12, 2023
    Assignee: 4D Molecular Therapeutics Inc.
    Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
  • Patent number: 11802278
    Abstract: The present disclosure provides codon optimized nucleotide sequences encoding human alpha-galactosidase A, vectors, and host cells comprising codon optimized alpha-galactosidase A sequences, and methods of treating disorders such as Fabry disease comprising administering to the subject a codon optimized sequence encoding human alpha-galactosidase A.
    Type: Grant
    Filed: October 11, 2022
    Date of Patent: October 31, 2023
    Inventors: David H. Kirn, Melissa Kotterman, Peter Francis, David Schaffer, Paul Szymanski, Kevin Whittlesey
  • Publication number: 20230340042
    Abstract: The present disclosure provides codon optimized RPGRorf15 sequences, vectors, and host cells comprising codon optimized RPGRorf15 sequences, and methods of treating retinal disorders such as XLRP comprising administering to the subject a codon optimized RPGRorf15 sequence.
    Type: Application
    Filed: August 30, 2021
    Publication date: October 26, 2023
    Applicant: 4D MOLECULAR THERAPEUTICS INC.
    Inventors: David H. KIRN, Melissa A. KOTTERMAN, David SCHAFFER, Peter FRANCIS
  • Patent number: 11766489
    Abstract: Provided herein are variant adeno-associated virus (AAV) capsid proteins having one or more modifications in amino acid sequence relative to a parental AAV capsid protein, which, when present in an AAV virion, confer increased infectivity of one or more types of retinal cells as compared to the infectivity of the retinal cells by an AAV virion comprising the unmodified parental AAV capsid protein. Also provided are recombinant AAV virions and pharmaceutical compositions thereof comprising a variant AAV capsid protein as described herein, methods of making these rAAV capsid proteins and virions, and methods for using these rAAV capsid proteins and virions in research and in clinical practice, for example in, e.g., the delivery of nucleic acid sequences to one or more cells of the retina for the treatment of retinal disorders and diseases.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: September 26, 2023
    Assignee: 4D Molecular Therapeutics, Inc.
    Inventors: David H. Kirn, Melissa Kotterman, David Schaffer, Paul Szymanski, Peter Francis
  • Patent number: 11766487
    Abstract: Provided herein are variant adeno-associated virus (AAV) capsid proteins having one or more modifications in amino acid sequence relative to a parental AAV capsid protein, which, when present in an AAV virion, confer increased infectivity of one or more types of retinal cells as compared to the infectivity of the retinal cells by an AAV virion comprising the unmodified parental AAV capsid protein. Also provided are recombinant AAV virions and pharmaceutical compositions thereof comprising a variant AAV capsid protein as described herein, methods of making these rAAV capsid proteins and virions, and methods for using these rAAV capsid proteins and virions in research and clinical practice, for example in, e.g., the delivery of nucleic acid sequences to one or more cells of the retina for the treatment of retinal disorders and diseases.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: September 26, 2023
    Assignee: 4D Molecular Therapeutics Inc.
    Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
  • Publication number: 20230279435
    Abstract: Provided herein are variant adeno-associated virus (AAV) capsid proteins having one or more modifications in amino acid sequence relative to a parental AAV capsid protein, which, when present in an AAV virion, confer increased infectivity of one or more types of muscle cells as compared to the infectivity of the muscle cells by an AAV virion comprising the unmodified parental AAV capsid protein. Also provided are recombinant AAV virions and pharmaceutical compositions thereof comprising a variant AAV capsid protein as described herein, methods of making these rAAV capsid proteins and virions, and methods for using these rAAV capsid proteins and virions in research and in clinical practice, for example in, e.g., the delivery of nucleic acid sequences to one or more muscle cells for the treatment of muscle disorders and diseases.
    Type: Application
    Filed: December 21, 2022
    Publication date: September 7, 2023
    Applicant: 4D MOLECULAR THERAPEUTICS INC.
    Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
  • Publication number: 20230211013
    Abstract: Provided herein are variant adeno-associated virus (AAV) capsid proteins having one or more modifications in amino acid sequence relative to a parental AAV capsid protein, which, when present in an AAV virion, confer increased infectivity of one or more types of retinal cells as compared to the infectivity of the retinal cells by an AAV virion comprising the unmodified parental AAV capsid protein. Also provided are recombinant AAV virions and pharmaceutical compositions thereof comprising a variant AAV capsid protein as described herein, methods of making these rAAV capsid proteins and virions, and methods for using these rAAV capsid proteins and virions in research and clinical practice, for example in, e.g., the delivery of nucleic acid sequences to one or more cells of the retina for the treatment of retinal disorders and diseases.
    Type: Application
    Filed: December 21, 2022
    Publication date: July 6, 2023
    Applicant: 4D MOLECULAR THERAPEUTICS INC.
    Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
  • Publication number: 20230190964
    Abstract: The present disclosure provides codon optimized nucleotide sequences encoding human alpha-galactosidase A, vectors, and host cells comprising codon optimized alpha-galactosidase A sequences, and methods of treating disorders such as Fabry disease comprising administering to the subject a codon optimized sequence encoding human alpha-galactosidase A.
    Type: Application
    Filed: October 11, 2022
    Publication date: June 22, 2023
    Applicant: 4D MOLECULAR THERAPEUTICS INC.
    Inventors: David H. Kirn, Melissa Kotterman, Peter Francis, David Schaffer, Paul Szymanski, Kevin Whittlesey
  • Publication number: 20230156289
    Abstract: Techniques are disclosed for curating content items. In some embodiments, a content item group generator applies rules defining inclusion and exclusion criteria to content items and associated metadata in order to assign the content items to content item groups. Given the assignments of content items to content item groups, a list generator applies a machine learning technique to generate, for each content item, a representation of the content item that includes weights associating the content item with the content item groups. The list generator then computes a weighted sum of representations of content items that a user has purchased and/or otherwise engaged with in order to generate a representation of the user that includes weights indicating affinities of the user with the content item groups. The list generator further generates one or more lists for display to the user based on the representation of the user.
    Type: Application
    Filed: November 12, 2021
    Publication date: May 18, 2023
    Inventors: Madhav THAKER, Warren Michael BRUTTELL, Michael HALLEEN, Joshua David SCHAFFER, Meghan Melanie TOOMAYAN
  • Patent number: 11613766
    Abstract: Provided herein are variant adeno-associated virus (AAV) capsid proteins having one or more modifications in amino acid sequence relative to a parental AAV capsid protein, which, when present in an AAV virion, confer increased infectivity of one or more types of muscle cells as compared to the infectivity of the muscle cells by an AAV virion comprising the unmodified parental AAV capsid protein. Also provided are recombinant AAV virions and pharmaceutical compositions thereof comprising a variant AAV capsid protein as described herein, methods of making these rAAV capsid proteins and virions, and methods for using these rAAV capsid proteins and virions in research and in clinical practice, for example in, e.g., the delivery of nucleic acid sequences to one or more muscle cells for the treatment of muscle disorders and diseases.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: March 28, 2023
    Assignee: 4 MOLECULAR THERAPEUTICS INC.
    Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
  • Patent number: 11576983
    Abstract: Provided herein are variant adeno-associated virus (AAV) capsid proteins having one or more modifications in amino acid sequence relative to a parental AAV capsid protein, which, when present in an AAV virion, confer increased infectivity of one or more types of retinal cells as compared to the infectivity of the retinal cells by an AAV virion comprising the unmodified parental AAV capsid protein. Also provided are recombinant AAV virions and pharmaceutical compositions thereof comprising a variant AAV capsid protein as described herein, methods of making these rAAV capsid proteins and virions, and methods for using these rAAV capsid proteins and virions in research and clinical practice, for example in, e.g., the delivery of nucleic acid sequences to one or more ceils of the retina for the treatment of retinal disorders and diseases.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: February 14, 2023
    Assignee: 4D Molecular Therapeutics Inc.
    Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
  • Publication number: 20230001018
    Abstract: Provided herein are variant adeno-associated virus (AAV) capsid proteins having one or more modifications in amino acid sequence relative to a parental AAV capsid protein, which, when present in an AAV virion, confer increased infectivity of one or more types of retinal cells as compared to the infectivity of the retinal cells by an AAV virion comprising the unmodified parental AAV capsid protein. Also provided are recombinant AAV virions and pharmaceutical compositions thereof comprising a variant AAV capsid protein as described herein, methods of making these rAAV capsid proteins and virions, and methods for using these rAAV capsid proteins and virions in research and clinical practice, for example in, e.g., the delivery of nucleic acid sequences to one or more ceils of the retina for the treatment of retinal disorders and diseases.
    Type: Application
    Filed: May 17, 2022
    Publication date: January 5, 2023
    Applicant: 4D MOLECULAR THERAPEUTICS INC.
    Inventors: David H. KIRN, Melissa KOTTERMAN, David SCHAFFER
  • Patent number: 11478215
    Abstract: Cardiac Output (CO) has traditionally been difficult, dangerous, and expensive to obtain. Surrogate measures such as pulse rate and blood pressure have therefore been used to permit an estimate of CO. MEMS technology, evolutionary computation, and time-frequency signal analysis techniques provide a technology to non-invasively estimate CO, based on precordial (chest wall) motions. The technology detects a ventricular contraction time point, and stroke volume, from chest wall motion measurements. As CO is the product of heart rate and stroke volume, these algorithms permit continuous, beat to beat CO assessment. Nontraditional Wavelet analysis can be used to extract features from chest acceleration. A learning tool is preferable to define the packets which best correlate to contraction time and stroke volume.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: October 25, 2022
    Assignee: The Research Foundation for The State University o
    Inventors: Ohad Barsimantov, Kenneth McLeod, J. David Schaffer