Patents by Inventor KUMAR RAJAPPAN

KUMAR RAJAPPAN 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: 12290567
    Abstract: ASGP-R binding molecular conjugates are provided. The conjugates are useful to deliver therapeutically effective amounts of biologically active molecules to target cells and tissues of a subject. Compositions are also provided comprising the molecular conjugates.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: May 6, 2025
    Assignee: Arcturus Therapeutics, Inc.
    Inventors: Kumar Rajappan, Padmanabh Chivukula, Kiyoshi Tachikawa, Steven Tanis, Priya Karmali
  • Publication number: 20240391870
    Abstract: The present disclosure describes compounds of Formula (I) and pharmaceutically acceptable salts thereof:
    Type: Application
    Filed: May 9, 2024
    Publication date: November 28, 2024
    Inventors: Kumar Rajappan, Steven Tanis
  • Publication number: 20230295081
    Abstract: The present disclosure describes compounds of Formula (I) and pharmaceutically acceptable salts thereof:
    Type: Application
    Filed: November 10, 2022
    Publication date: September 21, 2023
    Inventors: Kumar RAJAPPAN, Steven TANIS, Amit SAGI, Priya Prakash KARMALI, Padmanabh CHIVUKULA
  • Publication number: 20220389422
    Abstract: The present disclosure describes compounds of Formula (I) or a pharmaceutically acceptable salt thereof: wherein: R1 and R2 are each independently (CH3(CH2)m)2CH—, (CH3(CH2)m)(CH3(CH2)m-1)CH, (CH3(CH2)m)(CH3(CH2)m-2)CH, (CH3(CH2)m)2CHCH2—, or (CH3(CH2)m)(CH3(CH2)m-1)CHCH2—, wherein m is 4-11; L1 and L2 are each independently absent, a linear C1-5 alkylene, or (CH2)p—O—(CH2)q, wherein p and q are each independently 1-3; R3 is a linear C2-5 alkylene optionally substituted with one or two methyl groups; R4 and R5 are each independently H or C1-6 alkyl; X is O or S; and n is 0-2.
    Type: Application
    Filed: May 5, 2022
    Publication date: December 8, 2022
    Inventors: Kumar RAJAPPAN, Steven TANIS, Amit SAGI, Priya Prakash KARMALI
  • Publication number: 20220378702
    Abstract: Peptides and Peptide-lipid conjugates are provided in which the peptide has the general Formula (I) wherein, A1 is selected from serine, threonine, O—C1-6 alkyl serine, and O—C1-6 alkyl threonine; A2 is selected from serine, threonine, O—C1-6 alkyl serine, and O—C1-6 alkyl threonine; A3 is selected from glutamic acid, glutamine, asparagine, and aspartic acid; A4 is proline; each A5 is independently selected from a natural or modified amino acid; The peptide-lipid conjugates can be used in lipid formulations for the delivery of nucleic acids.
    Type: Application
    Filed: May 5, 2022
    Publication date: December 1, 2022
    Inventors: Kumar Rajappan, Steven Tanis, Rajesh Mukthavaram, Amit Sagi, Priya Prakash Karmali, Padmanabh Chivukula
  • Publication number: 20220370624
    Abstract: A lipid composition containing a nucleic acid, wherein the lipid composition comprises a peptide-lipid conjugate, is provided. The peptide of the peptide-lipid conjugates can be from 4 to 52 amino acids in length. Methods of using the lipid composition in the in vivo delivery of nucleic acids are further provided.
    Type: Application
    Filed: May 5, 2022
    Publication date: November 24, 2022
    Inventors: Kumar Rajappan, Steven Tanis, Rajesh Mukthavaram, Amit Sagi, Priya Prakash Karmali, Padmanabh Chivukula
  • Patent number: 11117923
    Abstract: A class of phosphorus containing polycyclic compounds of general formula I, of general formula I? or of general formula I?, wherein B1, B2, R1, R2, R1?, X1, X2, Y1, Y2, BL1, BL2, Z1, and Z2 are defined herein, that may be useful as modulators of type I interferon production, specifically as STING modulating agents, are provided. Also, provided are use of such compounds.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: September 14, 2021
    Inventor: Kumar Rajappan
  • Publication number: 20210060168
    Abstract: ASGP-R binding molecular conjugates are provided. The conjugates are useful to deliver therapeutically effective amounts of biologically active molecules to target cells and tissues of a subject. Compositions are also provided comprising the molecular conjugates.
    Type: Application
    Filed: September 3, 2020
    Publication date: March 4, 2021
    Inventors: Kumar RAJAPPAN, Padmanabh CHIVUKULA, Kiyoshi TACHIKAWA, Steven TANIS, Priya KARMALI
  • Publication number: 20200062799
    Abstract: A class of phosphorus containing polycyclic compounds of general formula I, of general formula I? or of general formula I?, wherein B1, B2, R1, R2, R1?, X1, X2, Y1, Y2, BL1, BL2, Z1, and Z2 are defined herein, that may be useful as modulators of type I interferon production, specifically as STING modulating agents, are provided. Also, provided are use of such compounds.
    Type: Application
    Filed: November 4, 2019
    Publication date: February 27, 2020
    Inventor: Kumar Rajappan
  • Patent number: 10526364
    Abstract: A class of phosphorus containing polycyclic compounds of general formula I, of general formula I? or of general formula I?, wherein B1, B2, R1, R2, R1?, X1, X2, Y1, Y2, BL1, BL2, Z1, and Z2 are defined herein, that may be useful as modulators of type I interferon production, specifically as STING modulating agents, are provided. Also, provided are use of such compounds.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: January 7, 2020
    Inventor: Kumar Rajappan
  • Publication number: 20190055277
    Abstract: A class of phosphorus containing polycyclic compounds of general formula I, of general formula I? or of general formula I?, wherein B1, B2, R1, R2, R1?, X1, X2, Y1, Y2, BL1, BL2, Z1, and Z2 are defined herein, that may be useful as modulators of type I interferon production, specifically as STING modulating agents, are provided. Also, provided are use of such compounds.
    Type: Application
    Filed: August 14, 2018
    Publication date: February 21, 2019
    Inventor: KUMAR RAJAPPAN