Patents by Inventor Tongqian Chen

Tongqian Chen 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: 20150105445
    Abstract: The present invention concerns methods and reagents useful in modulating gene expression in a variety of applications, including use in therapeutic, diagnostic, target validation, and genomic discovery applications. Specifically, the invention relates to synthetic chemically modified small nucleic acid molecules, such as short interfering nucleic acid (siNA), short interfering RNA (siRNA), double-stranded RNA (dsRNA), micro-RNA (miRNA), and short hairpin RNA (shRNA) molecules capable of mediating RNA interference (RNAi) against target nucleic acid sequences. The small nucleic acid molecules are useful in the treatment of any disease or condition that responds to modulation of gene expression or activity in a cell, tissue, or organism.
    Type: Application
    Filed: August 13, 2014
    Publication date: April 16, 2015
    Applicant: SIRNA THERAPEUTICS, INC.
    Inventors: James McSwiggen, Bharat Chowrira, Leonid Beigelman, Dennis Macejak, Shawn Zinnen, Pamela Pavco, Peter Haeberli, David Morrissey, Kathy Fosnaugh, Sharon F. Jamison, Nassim Usman, James Thompson, Chandra Vargeese, Weimin Wang, Tongqian Chen, Narendra K. Vaish
  • Patent number: 8846894
    Abstract: The present invention concerns methods and reagents useful in modulating gene expression in a variety of applications, including use in therapeutic, diagnostic, target validation, and genomic discovery applications. Specifically, the invention relates to synthetic chemically modified small nucleic acid molecules, such as short interfering nucleic acid (siNA), short interfering RNA (siRNA), double-stranded RNA (dsRNA), micro-RNA (miRNA), and short hairpin RNA (shRNA) molecules capable of mediating RNA interference (RNAi) against target nucleic acid sequences. The small nucleic acid molecules are useful in the treatment of any disease or condition that responds to modulation of gene expression or activity in a cell, tissue, or organism.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: September 30, 2014
    Assignee: Sirna Therapeutics, Inc.
    Inventors: James McSwiggen, Bharat Chowrira, Leonid Beigelman, Dennis Macejak, Shawn Zinnen, Pamela Pavco, Peter Haeberli, David Morrissey, Kathy Fosnaugh, Sharon F Jamison, Nassim Usman, James Thompson, Chandra Vargeese, Weimin Wang, Tongqian Chen, Narendra K Vaish
  • Patent number: 7964578
    Abstract: This invention features conjugates, degradable linkers, compositions, methods of synthesis, and applications thereof, including cholesterol, folate, galactose, galactosamine, N-acetyl galactosamine, PEG, phospholipid, peptide and human serum albumin (HSA) derived conjugates of biologically active compounds, including antibodies, antivirals, chemotherapeutics, peptides, proteins, hormones, nucleosides, nucleotides, non-nucleosides, and nucleic acids including enzymatic nucleic acids, DNAzymes, allozymes, antisense, dsRNA, siNA, siRNA, triplex oligonucleotides, 2,5-A chimeras, decoys and aptamers.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: June 21, 2011
    Assignee: Sirna Therapeutics, Inc.
    Inventors: Chandra Vargeese, Peter Haeberli, Weimin Wang, Tongqian Chen
  • Publication number: 20110124853
    Abstract: This invention features conjugates, degradable linkers, compositions, methods of synthesis, and applications thereof, including cholesterol, folate, galactose, galactosamine, N-acetyl galactosamine, PEG, phospholipid, peptide and human serum albumin (HSA) derived conjugates of biologically active compounds, including antibodies, antivirals, chemotherapeutics, peptides, proteins, hormones, nucleosides, nucleotides, non-nucleosides, and nucleic acids including enzymatic nucleic acids, DNAzymes, allozymes, antisense, dsRNA, siNA, siRNA, triplex oligonucleotides, 2,5-A chimeras, decoys and aptamers.
    Type: Application
    Filed: September 27, 2010
    Publication date: May 26, 2011
    Inventors: Tongqian CHEN, Peter Haeberli, Chandra Vargeese, Weimin Wang
  • Publication number: 20110092739
    Abstract: The present invention relates to novel cationic lipids, transfection agents, microparticles, nanoparticles, and short interfering nucleic acid (siNA) molecules. The invention also features compositions, and methods of use for the study, diagnosis, and treatment of traits, diseases and conditions that respond to the modulation of gene expression and/or activity in a subject or organism. Specifically, the invention relates to novel cationic lipids, microparticles, nanoparticles and transfection agents that effectively transfect or deliver biologically active molecules, such as antibodies (e.g., monoclonal, chimeric, humanized etc.
    Type: Application
    Filed: December 20, 2010
    Publication date: April 21, 2011
    Applicant: Sima Therapeutics, Inc.
    Inventors: Tongqian Chen, Chandra Vargeese, Kurt Vagle, Weimin Wang, Ye Zhang
  • Patent number: 7893302
    Abstract: The present invention relates to novel cationic lipids, transfection agents, microparticles, nanoparticles, and short interfering nucleic acid (siNA) molecules. The invention also features compositions, and methods of use for the study, diagnosis, and treatment of traits, diseases and conditions that respond to the modulation of gene expression and/or activity in a subject or organism. Specifically, the invention relates to novel cationic lipids, microparticles, nanoparticles and transfection agents that effectively transfect or deliver biologically active molecules.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: February 22, 2011
    Assignee: Sirna Therapeutics, Inc.
    Inventors: Tongqian Chen, Chandra Vargeese, Kurt Vagle, Weimin Wang, Ye Zhang
  • Patent number: 7833992
    Abstract: This invention features conjugates, degradable linkers, compositions, methods of synthesis, and applications thereof, including cholesterol derived conjugates of biologically active compounds, including antibodies, antivirals, chemotherapeutics, peptides, proteins, hormones, nucleosides, nucleotides, non-nucleosides, and nucleic acids including enzymatic nucleic acids, DNAzymes, allozymes, antisense, dsRNA, siNA, siRNA, triplex oligonucleotides, 2,5-A chimeras, decoys and aptamers.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: November 16, 2010
    Assignee: Merck Sharpe & Dohme
    Inventors: Chandra Vargeese, Peter Haeberli, Weimin Wang, Tongqian Chen
  • Publication number: 20100105933
    Abstract: The present invention relates to novel cationic lipids, transfection agents, microparticles, nanoparticles, and short interfering nucleic acid (siNA) molecules. The invention also features compositions, and methods of use for the study, diagnosis, and treatment of traits, diseases and conditions that respond to the modulation of gene expression and/or activity in a subject or organism. Specifically, the invention relates to novel cationic lipids, microparticles, nanoparticles and transfection agents that effectively transfect or deliver biologically active molecules, such as antibodies (e.g., monoclonal, chimeric, humanized etc.
    Type: Application
    Filed: December 17, 2009
    Publication date: April 29, 2010
    Inventors: Tongqian Chen, Kurt Vagle, Chandra Vargeese, Weimin Wang, Ye Zhang
  • Patent number: 7691405
    Abstract: The present invention relates to novel cationic lipids, transfection agents, microparticles, nanoparticles, and short interfering nucleic acid (siNA) molecules. Specifically, the invention relates to novel cationic lipids, microparticles, nanoparticles and transfection agents that effectively transfect or deliver short interfering nucleic acid (siNA). The compositions described herein are generally referred to as formulated molecular compositions (FMC) or lipid nanoparticles (LNP).
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: April 6, 2010
    Assignee: Sirna Therapeutics, Inc
    Inventors: Tongqian Chen, Kurt Vagle, Chandra Vargeese, Weimin Wang, Ye Zhang
  • Publication number: 20100063308
    Abstract: The present invention relates to novel cationic lipids, transfection agents, microparticles, nanoparticles, and short interfering nucleic acid (siNA) molecules. The invention also features compositions, and methods of use for the study, diagnosis, and treatment of traits, diseases and conditions that respond to the modulation of gene expression and/or activity in a subject or organism. Specifically, the invention relates to novel cationic lipids, microparticles, nanoparticles and transfection agents that effectively transfect or deliver biologically active molecules, such as antibodies (e.g., monoclonal, chimeric, humanized etc.
    Type: Application
    Filed: November 12, 2009
    Publication date: March 11, 2010
    Inventors: Tongqian Chen, Chandra Vargeese, Kurt Vagle, Weimin Wang, Ye Zhang
  • Publication number: 20100048888
    Abstract: The present invention relates to novel cationic lipids, transfection agents, microparticles, nanoparticles, and short interfering nucleic acid (siNA) molecules. The invention also features compositions, and methods of use for the study, diagnosis, and treatment of traits, diseases and conditions that respond to the modulation of gene expression and/or activity in a subject or organism. Specifically, the invention relates to novel cationic lipids, microparticles, nanoparticles and transfection agents that effectively transfect or deliver biologically active molecules, such as antibodies (e.g., monoclonal, chimeric, humanized etc.
    Type: Application
    Filed: October 17, 2007
    Publication date: February 25, 2010
    Inventors: Tongqian Chen, Kurt Vagle, Chandra Vargeese, Weimin Wang, Ye Zhang
  • Patent number: 7641915
    Abstract: The present invention relates to novel cationic lipids, transfection agents, microparticles, nanoparticles, and short interfering nucleic acid (siNA) molecules. The invention also features compositions, and methods of use for the study, diagnosis, and treatment of traits, diseases and conditions that respond to the modulation of gene expression and/or activity in a subject or organism. Specifically, the invention relates to novel cationic lipids, microparticles, nanoparticles and transfection agents that effectively transfect or deliver biologically active molecules, such as antibodies (e.g., monoclonal, chimeric, humanized etc.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: January 5, 2010
    Assignee: Sirna Therapeutics, Inc
    Inventors: TongQian Chen, Chandra Vargeese, Kurt Vagle, WeiMin Wang, Ye Zhang
  • Publication number: 20090264636
    Abstract: This invention features conjugates, degradable linkers, compositions, methods of synthesis, and applications thereof, including cholesterol, folate, galactose, galactosamine, N-acetyl galactosamine, PEG, phospholipid, peptide and human serum albumin (HSA) derived conjugates of biologically active compounds, including antibodies, antivirals, chemotherapeutics, peptides, proteins, hormones, nucleosides, nucleotides, non-nucleosides, and nucleic acids including enzymatic nucleic acids, DNAzymes, allozymes, antisense, dsRNA, siNA, siRNA, triplex oligonucleotides, 2,5-A chimeras, decoys and aptamers.
    Type: Application
    Filed: October 16, 2008
    Publication date: October 22, 2009
    Applicant: Sirna Therapeutics, Inc.
    Inventors: Chandra Vargeese, Peter Haeberli, Weimin Wang, Tongqian Chen
  • Publication number: 20090137500
    Abstract: The present invention concerns methods and reagents useful in modulating gene expression in a variety of applications, including use in therapeutic, diagnostic, target validation, and genomic discovery applications. Specifically, the invention relates to synthetic chemically modified small nucleic acid molecules, such as short interfering nucleic acid (siNA), short interfering RNA (siRNA), double-stranded RNA (dsRNA), micro-RNA (miRNA), and short hairpin RNA (shRNA) molecules capable of mediating RNA interference (RNAi) against target nucleic acid sequences. The small nucleic acid molecules are useful in the treatment of any disease or condition that responds to modulation of gene expression or activity in a cell, tissue, or organism.
    Type: Application
    Filed: November 24, 2003
    Publication date: May 28, 2009
    Inventors: James McSwiggen, Bharat M. Chowrira, Leonid Beigelman, Dennis Macejak, Shawn Zinnen, Pamela Pavco, Peter Haeberli, David Morrisey, Kathy Fosnaugh, Sharon Jamison, Nassim Usman, James Thompson, Chandra Vargeese, Weiman Wang, Tongqian Chen, Narendra Vaish
  • Patent number: 7514099
    Abstract: The present invention relates to novel cationic lipids, transfection agents, microparticles, nanoparticles, and short interfering nucleic acid (siNA) molecules. The invention also features compositions, and methods of use for the study, diagnosis, and treatment of traits, diseases and conditions that respond to the modulation of gene expression and/or activity in a subject or organism. Specifically, the invention relates to novel cationic lipids, microparticles, nanoparticles and transfection agents that effectively transfect or deliver biologically active molecules, such as antibodies (e.g., monoclonal, chimeric, humanized etc.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: April 7, 2009
    Assignee: Sirna Therapeutics, Inc.
    Inventors: Tongqian Chen, Chandra Vargeese, Kurt Vagle, Weimin Wang, Ye Zhang
  • Publication number: 20090048197
    Abstract: The present invention relates to novel cationic lipids, transfection agents, microparticles, nanoparticles, and short interfering nucleic acid (siNA) molecules. The invention also features compositions, and methods of use for the study, diagnosis, and treatment of traits, diseases and conditions that respond to the modulation of gene expression and/or activity in a subject or organism. Specifically, the invention relates to novel cationic lipids, microparticles, nanoparticles and transfection agents that effectively transfect or deliver biologically active molecules, such as antibodies (e.g., monoclonal, chimeric, humanized etc.
    Type: Application
    Filed: February 7, 2008
    Publication date: February 19, 2009
    Applicant: SIRNA THERAPEUTICS, INC.
    Inventors: Tongqian Chen, Chandra Vargeese, Kurt Vagle, Weimin Wang, Ye Zhang
  • Patent number: 7491805
    Abstract: This invention features conjugates, degradable linkers, compositions, methods of synthesis, and applications thereof, including galactosamine and N-acetyl galactosamine derived conjugates of biologically active compounds, including antibodies, antivirals, chemotherapeutics, peptides, proteins, hormones, nucleosides, nucleotides, non-nucleosides, and nucleic acids including enzymatic nucleic acids, DNAzymes, allozymes, antisense, dsRNA, siNA, siRNA, triplex oligonucleotides, 2,5-A chimeras, decoys and aptamers.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: February 17, 2009
    Assignee: Sirna Therapeutics, Inc.
    Inventors: Chandra Vargeese, Peter Haeberli, Weimin Wang, Tongqian Chen
  • Publication number: 20090023675
    Abstract: The present invention concerns methods and reagents useful in modulating gene expression in a variety of applications, including use in therapeutic, diagnostic, target validation, and genomic discovery applications. Specifically, the invention relates to synthetic chemically modified small nucleic acid molecules, such as short interfering nucleic acid (siNA), short interfering RNA (siRNA), double-stranded RNA (dsRNA), micro-RNA (miRNA), and short hairpin RNA (shRNA) molecules capable of mediating RNA interference (RNAi) against target nucleic acid sequences. The small nucleic acid molecules are useful in the treatment of any disease or condition that responds to modulation of gene expression or activity in a cell, tissue, or organism.
    Type: Application
    Filed: April 17, 2008
    Publication date: January 22, 2009
    Applicant: SIRNA THERAPEUTICS, INC.
    Inventors: James McSwiggen, Bharat Chowrira, Leonid Beigelman, Dennis Macejak, Shawn Zinnen, Pamela Pavco, Peter Haeberli, David Morrissey, Kathy Fosnaugh, Sharon Jamison, Nassim Usman, James Thompson, Chandra Vargeese, Weimin Wang, Tongqian Chen, Narendra Vaish
  • Publication number: 20080188675
    Abstract: The present invention relates to novel cationic lipids, transfection agents, microparticles, nanoparticles, and short interfering nucleic acid (siNA) molecules. The invention also features compositions, and methods of use for the study, diagnosis, and treatment of traits, diseases and conditions that respond to the modulation of gene expression and/or activity in a subject or organism. Specifically, the invention relates to novel cationic lipids, microparticles, nanoparticles and transfection agents that effectively transfect or deliver biologically active molecules, such as antibodies (e.g., monoclonal, chimeric, humanized etc.
    Type: Application
    Filed: March 13, 2008
    Publication date: August 7, 2008
    Applicant: SIRNA THERAPEUTICS INC.
    Inventors: Tongqian Chen, Chandra Vargeese, Kurt Vagle, Weimin Wang, Ye Zhang
  • Patent number: 7404969
    Abstract: The present invention relates to novel cationic lipids, transfection agents, microparticles, nanoparticles, and short interfering nucleic acid (siNA) molecules. Specifically, the invention relates to novel cationic lipids, microparticles, nanoparticles and transfection agents that effectively transfect or deliver short interfering nucleic acid (siNA). The compositions described herein are generally referred to as formulated molecular compositions (FMC) or lipid nanoparticles (LNP).
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: July 29, 2008
    Assignee: Sirna Therapeutics, Inc.
    Inventors: Tongqian Chen, Chandra Vargeese, Kurt Vagle, Weimin Wang, Ye Zhang