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).
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Publication number: 20260053947Abstract: 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: ApplicationFiled: August 15, 2025Publication date: February 26, 2026Applicant: 4D MOLECULAR THERAPEUTICS INC.Inventors: David H. KIRN, Melissa KOTTERMAN, David SCHAFFER
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Publication number: 20250163469Abstract: 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: ApplicationFiled: December 12, 2024Publication date: May 22, 2025Applicant: 4D MOLECULAR THERAPEUTICS INC.Inventors: David H. Kirn, Melissa KOTTERMAN, David SCHAFFER
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Patent number: 12221616Abstract: 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: GrantFiled: August 11, 2021Date of Patent: February 11, 2025Assignee: AD Molecular Therapeutics Inc.Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
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Publication number: 20240335560Abstract: 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: ApplicationFiled: September 13, 2023Publication date: October 10, 2024Applicant: 4D MOLECULAR THERAPEUTICS INCInventors: David H. Kirn, Melissa KOTTERMAN, David SCHAFFER, Paul SZYMANSKI, Peter FRANCIS
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Patent number: 11939355Abstract: The present disclosure provides AAV variants that exhibit a preference for retrograde movement in neurons and methods of using such variants.Type: GrantFiled: March 23, 2021Date of Patent: March 26, 2024Assignee: Howard Hughes Medical InstituteInventors: Joshua Dudman, Adam Hantman, Bum-Yeol Hwang, Alla Karpova, Loren Looger, Kimberly Ritola, David Schaffer, Dougal Gowanlock Robinson Tervo, Sarada Viswanathan
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Publication number: 20240066145Abstract: 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: ApplicationFiled: August 10, 2023Publication date: February 29, 2024Applicant: 4D MOLECULAR THERAPEUTICS INC.Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
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Publication number: 20240018498Abstract: 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: ApplicationFiled: September 8, 2023Publication date: January 18, 2024Applicant: 4D MOLECULAR THERAPEUTICS INC.Inventors: David H. KIRN, Melissa KOTTERMAN, Peter FRANCIS, David SCHAFFER, Paul SZYMANSKI, Kevin WHITTLESEY
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Patent number: 11840704Abstract: 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: GrantFiled: December 21, 2022Date of Patent: December 12, 2023Assignee: 4D Molecular Therapeutics Inc.Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
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Patent number: 11802278Abstract: 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: GrantFiled: October 11, 2022Date of Patent: October 31, 2023Inventors: David H. Kirn, Melissa Kotterman, Peter Francis, David Schaffer, Paul Szymanski, Kevin Whittlesey
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Publication number: 20230340042Abstract: 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: ApplicationFiled: August 30, 2021Publication date: October 26, 2023Applicant: 4D MOLECULAR THERAPEUTICS INC.Inventors: David H. KIRN, Melissa A. KOTTERMAN, David SCHAFFER, Peter FRANCIS
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Patent number: 11766489Abstract: 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: GrantFiled: November 26, 2018Date of Patent: September 26, 2023Assignee: 4D Molecular Therapeutics, Inc.Inventors: David H. Kirn, Melissa Kotterman, David Schaffer, Paul Szymanski, Peter Francis
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Patent number: 11766487Abstract: 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: GrantFiled: December 21, 2022Date of Patent: September 26, 2023Assignee: 4D Molecular Therapeutics Inc.Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
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Publication number: 20230279435Abstract: 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: ApplicationFiled: December 21, 2022Publication date: September 7, 2023Applicant: 4D MOLECULAR THERAPEUTICS INC.Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
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Publication number: 20230211013Abstract: 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: ApplicationFiled: December 21, 2022Publication date: July 6, 2023Applicant: 4D MOLECULAR THERAPEUTICS INC.Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
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Publication number: 20230190964Abstract: 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: ApplicationFiled: October 11, 2022Publication date: June 22, 2023Applicant: 4D MOLECULAR THERAPEUTICS INC.Inventors: David H. Kirn, Melissa Kotterman, Peter Francis, David Schaffer, Paul Szymanski, Kevin Whittlesey
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Patent number: 11613766Abstract: 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: GrantFiled: April 12, 2022Date of Patent: March 28, 2023Assignee: 4 MOLECULAR THERAPEUTICS INC.Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
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Patent number: 11576983Abstract: 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: GrantFiled: May 17, 2022Date of Patent: February 14, 2023Assignee: 4D Molecular Therapeutics Inc.Inventors: David H. Kirn, Melissa Kotterman, David Schaffer
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Publication number: 20230001018Abstract: 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: ApplicationFiled: May 17, 2022Publication date: January 5, 2023Applicant: 4D MOLECULAR THERAPEUTICS INC.Inventors: David H. KIRN, Melissa KOTTERMAN, David SCHAFFER
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Publication number: 20220290181Abstract: 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: ApplicationFiled: May 26, 2022Publication date: September 15, 2022Inventors: David H. Kirn, Melissa A. Kotterman, David Schaffer, Peter Francis
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Patent number: 11419949Abstract: 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: GrantFiled: January 29, 2021Date of Patent: August 23, 2022Assignee: 4D Molecular Therapeutics Inc.Inventors: David H. Kirn, Melissa Kotterman, David Schaffer