Patents by Inventor Ivan Krivega

Ivan Krivega 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).

  • Patent number: 12673068
    Abstract: Disclosed herein are nucleic acid compositions and methods of use. The nucleic acid compositions may have a therapeutic nucleic acid sequence operably linked to a nuclear targeting sequence that increases expression of the therapeutic nucleic acid in a cell by at least 1.25 fold; at least 80% sequence identity to SEQ ID NO: 6; or a first regulatory element comprising a promoter sequence operably linked to a hemoglobin subunit gamma intron (hBGi) sequence, and a second regulatory element comprising a woodchuck hepatitis posttranscriptional regulatory element (WPRE) sequence. The nucleic acid compositions with these features may enhance therapeutic nucleic acid transfection and expression. Also disclosed herein are transgenes optimized for gene therapy applications, including novel FVIII transgene sequences, in which the B domain may be non-naturally occurring the A1 and/or A3 domain may include at least one amino acid substitution.
    Type: Grant
    Filed: October 8, 2025
    Date of Patent: July 7, 2026
    Assignee: Sono Thera, Inc.
    Inventors: Ivan Krivega, Margarita Krivega, Kenneth Greenberg, Steven B. Feinstein
  • Publication number: 20260176312
    Abstract: Provided are methods and compositions for expressing a functional dystrophin protein or a functional fragment thereof in a subject. The method can include administering a nucleic acid encoding the dystrophin protein to the subject, administering a sonoactive agent to the subject, and applying ultrasound energy the cell. Also provided are use of a nucleic acid encoding a functional dystrophin protein and a sonoactive agent in a method of treating a subject having a dystrophinopathy disorder requiring a dystrophin gene therapy or a dystrophin protein replacement therapy.
    Type: Application
    Filed: December 12, 2025
    Publication date: June 25, 2026
    Inventors: Ivan KRIVEGA, Margarita KRIVEGA, Steven B. FEINSTEIN, Kenneth GREENBERG
  • Publication number: 20260124227
    Abstract: Disclosed herein are nucleic acid compositions and methods of use. The nucleic acid compositions may have a therapeutic nucleic acid sequence operably linked to a nuclear targeting sequence that increases expression of the therapeutic nucleic acid in a cell by at least 1.25 fold; at least 80% sequence identity to SEQ ID NO: 6; or a first regulatory element comprising a promoter sequence operably linked to a hemoglobin subunit gamma intron (hBGi) sequence, and a second regulatory element comprising a woodchuck hepatitis posttranscriptional regulatory element (WPRE) sequence. The nucleic acid compositions with these features may enhance therapeutic nucleic acid transfection and expression. Also disclosed herein are transgenes optimized for gene therapy applications, including novel FVIII transgene sequences, in which the B domain may be non-naturally occurring the A1 and/or A3 domain may include at least one amino acid substitution.
    Type: Application
    Filed: October 8, 2025
    Publication date: May 7, 2026
    Inventors: Ivan KRIVEGA, Margarita KRIVEGA, Kenneth GREENBERG, Steven B. FEINSTEIN
  • Publication number: 20250144248
    Abstract: Provided are methods, compositions, and kits for improving a delivery of a nucleic acid to a cell in an organ of a subject. Such methods, compositions, and kits may include a sonoactive agent and a nucleic acid comprising a cargo polynucleotide and a nuclear localization element and/or an innate immune response avoidance moiety, which may be an aptamer. Delivery may involve sonoporation.
    Type: Application
    Filed: November 5, 2024
    Publication date: May 8, 2025
    Inventors: Steven B. FEINSTEIN, Kenneth GREENBERG, Chuan FU, Ivan KRIVEGA, Maria KONOVALENKO, Barry CAMPBELL, Zoya GLUZMAN-POLTORAK, David SATYADI, Margarita KRIVEGA
  • Publication number: 20230079440
    Abstract: The present disclosure provides push-pull donor constructs and methods of uses thereof in genome engineering.
    Type: Application
    Filed: October 30, 2020
    Publication date: March 16, 2023
    Inventor: Ivan Krivega
  • Publication number: 20230067653
    Abstract: Described herein are engineered nucleases comprising mutations in the cleavage domain (e.g., FokI or homologue thereof) and/or DNA binding domain (zinc finger protein, TALE, single guide RNA) such that on-target specificity is increased.
    Type: Application
    Filed: June 23, 2022
    Publication date: March 2, 2023
    Inventors: Russell DeKelver, Ivan Krivega, Jeffrey C. Miller, Lei Zhang
  • Patent number: 11401512
    Abstract: Described herein are engineered nucleases comprising mutations in the cleavage domain (e.g., FokI or homologue thereof) and/or DNA binding domain (zinc finger protein, TALE, single guide RNA) such that on-target specificity is increased.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: August 2, 2022
    Assignee: Sangamo Therapeutics, Inc.
    Inventors: Russell DeKelver, Ivan Krivega, Jeffrey C. Miller, Lei Zhang
  • Publication number: 20190241877
    Abstract: Described herein are engineered nucleases comprising mutations in the cleavage domain (e.g., FokI or homologue thereof) and/or DNA binding domain (zinc finger protein, TALE, single guide RNA) such that on-target specificity is increased.
    Type: Application
    Filed: February 8, 2019
    Publication date: August 8, 2019
    Inventors: Russell DeKelver, Ivan Krivega, Jeffrey C. Miller, Lei Zhang