Patents by Inventor Lloyd G. Mitchell

Lloyd G. Mitchell 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: 20220062437
    Abstract: A nucleic acid trans-splicing molecule is provided that can replace an exon in a targeted mammalian ocular gene carrying a defect or mutation causing an ocular disease with an exon having the naturally-occurring sequence without the defect or mutation. A method of treating an ocular disease, e.g., Stargardt's Disease, caused by a defect or mutation in a target gene, e.g., ABCA4 comprising: administering to the ocular cells of a subject having an ocular disease a composition comprising a recombinant AAV comprising a nucleic acid trans-splicing molecule as described above.
    Type: Application
    Filed: April 14, 2021
    Publication date: March 3, 2022
    Inventors: Jean Bennett, Jeannette Bennicelli, Scott J. Dooley, Lloyd G. Mitchell
  • Patent number: 10987433
    Abstract: A nucleic acid trans-splicing molecule is provided that can replace an exon in a targeted mammalian ocular gene carrying a defect or mutation causing an ocular disease with an exon having the naturally-occurring sequence without the defect or mutation. A method of treating an ocular disease, e.g., Stargardt's Disease, caused by a defect or mutation in a target gene, e.g., ABCA4 comprising: administering to the ocular cells of a subject having an ocular disease a composition comprising a recombinant AAV comprising a nucleic acid trans-splicing molecule as described above.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: April 27, 2021
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Jean Bennett, Jeannette Bennicelli, Scott J. Dooley, Lloyd G. Mitchell
  • Publication number: 20180369412
    Abstract: A nucleic acid trans-splicing molecule is provided that can replace an exon in a targeted mammalian ocular gene carrying a defect or mutation causing an ocular disease with an exon having the naturally-occurring sequence without the defect or mutation. A method of treating an ocular disease, e.g., Stargardt's Disease, caused by a defect or mutation in a target gene, e.g., ABCA4 comprising: administering to the ocular cells of a subject having an ocular disease a composition comprising a recombinant AAV comprising a nucleic acid trans-splicing molecule as described above.
    Type: Application
    Filed: November 18, 2016
    Publication date: December 27, 2018
    Inventors: Jean Bennett, Jeannette Bennicelli, Scott J. Dooley, Lloyd G. Mitchell
  • Patent number: 9273149
    Abstract: This application describes an antibody that specifically binds to a synthetic oligomer (e.g., an oligonucleotide or oligopeptide) having a organic protecting group covalently bound thereto, which antibody does not bind to that synthetic oligomer when the organic protecting group is not covalently bound thereto. Methods of making and using such antibodies are also disclosed, along with cells for making such antibodies and articles carrying immobilized oligomers that can be used in assay procedures with such antibodies.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: March 1, 2016
    Assignees: Veri-Q, Inc., North Carolina State University
    Inventors: Paul F. Agris, Christopher D. J. Pearce, Lloyd G. Mitchell
  • Publication number: 20140193855
    Abstract: This application describes an antibody that specifically binds to a synthetic oligomer (e.g., an oligonucleotide or oligopeptide) having a organic protecting group covalently bound thereto, which antibody does not bind to that synthetic oligomer when the organic protecting group is not covalently bound thereto. Methods of making and using such antibodies are also disclosed, along with cells for making such antibodies and articles carrying immobilized oligomers that can be used in assay procedures with such antibodies.
    Type: Application
    Filed: February 27, 2014
    Publication date: July 10, 2014
    Applicants: Veri-Q, Inc., North Carolina State University
    Inventors: Paul F. Agris, Christopher D.J. Pearce, Lloyd G. Mitchell
  • Patent number: 8735366
    Abstract: The present invention relates to specific and markedly improved pre-mRNA trans-splicing molecule (RTM) molecules which are designed to correct specific genes expressed within cells to be targeted, and which are associated with epidermolysis bullosa, cystic fibrosis, pachyonychia congenital, and psoriasis or neurodermitis, as well as cancers of the skin. In particular, the RTMs of the present invention are genetically engineered to interact with a specific target pre-mRNA expressed in cells to be targeted so as to result in correction of genetic defects or reprogramming of gene expression responsible for a variety of different skin disorders.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: May 27, 2014
    Inventors: Johann Bauer, Lloyd G. Mitchell
  • Patent number: 8697355
    Abstract: This application describes an antibody that specifically binds to a synthetic oligomer (e.g., an oligonucleotide or oligopeptide) having a organic protecting group covalently bound thereto, which antibody does not bind to that synthetic oligomer when the organic protecting group is not covalently bound thereto. Methods of making and using such antibodies are also disclosed, along with cells for making such antibodies and articles carrying immobilized oligomers that can be used in assay procedures with such antibodies.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: April 15, 2014
    Assignee: North Carolina State University
    Inventors: Paul F. Agris, Christopher D. J. Pearce, Lloyd G. Mitchell
  • Publication number: 20130071951
    Abstract: This application describes an antibody that specifically binds to a synthetic oligomer (e.g., an oligonucleotide or oligopeptide) having a organic protecting group covalently bound thereto, which antibody does not bind to that synthetic oligomer when the organic protecting group is not covalently bound thereto. Methods of making and using such antibodies are also disclosed, along with cells for making such antibodies and articles carrying immobilized oligomers that can be used in assay procedures with such antibodies.
    Type: Application
    Filed: November 6, 2012
    Publication date: March 21, 2013
    Inventors: Paul F. Agris, Christipher D.J. Pearce, Lloyd G. Mitchell
  • Publication number: 20130059901
    Abstract: The present invention relates to specific and markedly improved pre-mRNA trans-splicing molecule (RTM) molecules which are designed to correct specific genes expressed within cells to be targeted, and which are associated with epidermolysis bullosa, cystic fibrosis, pachyonychia congenital, and psoriasis or neurodermitis, as well as cancers of the skin. In particular, the RTMs of the present invention are genetically engineered to interact with a specific target pre-mRNA expressed in cells to be targeted so as to result in correction of genetic defects or reprogramming of gene expression responsible for a variety of different skin disorders.
    Type: Application
    Filed: July 30, 2009
    Publication date: March 7, 2013
    Inventors: Johann Bauer, Lloyd G. Mitchell
  • Patent number: 8323910
    Abstract: This application describes an antibody that specifically binds to a synthetic oligomer (e.g., an oligonucleotide or oligopeptide) having a organic protecting group covalently bound thereto, which antibody does not bind to that synthetic oligomer when the organic protecting group is not covalently bound thereto. Methods of making and using such antibodies are also disclosed, along with cells for making such antibodies and articles carrying immobilized oligomers that can be used in assay procedures with such antibodies.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: December 4, 2012
    Assignee: North Carolina State University
    Inventors: Paul F. Agris, Christopher D. J. Pearce, Lloyd G. Mitchell
  • Publication number: 20120198575
    Abstract: This application describes an antibody that specifically binds to a synthetic oligomer (e.g., an oligonucleotide or oligopeptide) having a organic protecting group covalently bound thereto, which antibody does not bind to that synthetic oligomer when the organic protecting group is not covalently bound thereto. Methods of making and using such antibodies are also disclosed, along with cells for making such antibodies and articles carrying immobilized oligomers that can be used in assay procedures with such antibodies.
    Type: Application
    Filed: April 5, 2012
    Publication date: August 2, 2012
    Inventors: Paul F. Agris, Christopher D.J. Pearce, Lloyd G. Mitchell
  • Patent number: 8173377
    Abstract: This application describes an antibody that specifically binds to a synthetic oligomer (e.g., an oligonucleotide or oligopeptide) having a organic protecting group covalently bound thereto, which antibody does not bind to that synthetic oligomer when the organic protecting group is not covalently bound thereto. Methods of making and using such antibodies are also disclosed, along with cells for making such antibodies and articles carrying immobilized oligomers that can be used in assay procedures with such antibodies.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: May 8, 2012
    Assignee: North Carolina State University
    Inventors: Paul F. Agris, Christopher D. J. Pearce, Lloyd G. Mitchell
  • Patent number: 8076461
    Abstract: An antibody microarray is described comprising a plurality of antibodies immobilized on a substrate, wherein each antibody specifically binds to a synthetic oligomer (e.g., an oligonucleotide or oligopeptide) having an organic protecting group covalently bound thereto, which antibody does not bind to that synthetic oligomer when the organic protecting group is not covalently bound thereto. Methods of making and using such antibodies are disclosed, along with cells for making such antibodies. Methods of making and using such antibody microarrays are also disclosed.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: December 13, 2011
    Assignee: Proteome Sciences PLC
    Inventors: Christopher D. J. Pearce, Lloyd G. Mitchell
  • Patent number: 8053232
    Abstract: The present invention provides methods and compositions for generating novel nucleic acid molecules through targeted spliceosomal mediated RNA trans-splicing. The compositions of the invention include pre-trans-splicing molecules (PTMs) designed to interact with a SERPINA1 target precursor messenger RNA molecule (target pre-mRNA) and mediate a trans-splicing reaction resulting in the generation of a novel chimeric RNA molecule (chimeric RNA). In particular, the PTMs of the present invention include those genetically engineered to interact with SERPINA1 target pre-mRNA so as to result in correction of SERPINA1 genetic defects responsible for AAT deficiency. The PTMs of the invention may also comprise sequences that are processed out of the PTM to yield duplex siRNA molecules directed specifically to mutant SERPIN A1 mRNAs. Such duplexed siRNAs are designed to reduce the accumulation of toxic AAT protein in liver cells.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: November 8, 2011
    Assignee: VIRxSYS Corporation
    Inventors: Madaiah Puttaraju, Edward Otto, Mariano A. Garcia-Blanco, Gerard J. McGarrity, Gary F. Temple, Lloyd G. Mitchell, Colette Cote, S. Gary Mansfield
  • Publication number: 20110190154
    Abstract: This application describes an antibody that specifically binds to a synthetic oligomer (e.g., an oligonucleotide or oligopeptide) having a organic protecting group covalently bound thereto, which antibody does not bind to that synthetic oligomer when the organic protecting group is not covalently bound thereto. Methods of making and using such antibodies are also disclosed, along with cells for making such antibodies and articles carrying immobilized oligomers that can be used in assay procedures with such antibodies.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 4, 2011
    Inventors: Paul F. Agris, Christopher D.J. Pearce, Lloyd G. Mitchell
  • Patent number: 7901892
    Abstract: This application describes an antibody that specifically binds to a synthetic oligomer (e.g., an oligonucleotide or oligopeptide) having a organic protecting group covalently bound thereto, which antibody does not bind to that synthetic oligomer when the organic protecting group is not covalently bound thereto. Methods of making and using such antibodies are also disclosed, along with cells for making such antibodies and articles carrying immobilized oligomers that can be used in assay procedures with such antibodies.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: March 8, 2011
    Assignee: North Carolina State University
    Inventors: Paul F. Agris, Christopher D. J. Pearce, Lloyd G. Mitchell
  • Publication number: 20090203143
    Abstract: The present invention provides methods and compositions for conferring selective death on cells expressing a specific target precursor messenger RNA (selective target pre-mRNA). The compositions of the invention include pre-trans-splicing molecules (PTMs) designed to interact with a target precursor messenger RNA molecule (target pre-mRNA) expressed within a cell and mediate a trans-splicing reaction resulting in the generation of a novel chimeric mRNA molecule (chimeric mRNA) capable of encoding a light producing protein or enzyme. Cell death is further mediated by the presence of a photosensitizer which upon photoactivation produces cytotoxicity.
    Type: Application
    Filed: June 9, 2008
    Publication date: August 13, 2009
    Applicant: VIRXSYS CORPORATION
    Inventors: Lloyd G. Mitchell, Edward Otto, Carl R. Merril
  • Patent number: 7399753
    Abstract: The present invention provides methods and compositions for conferring selective death on cells expressing a specific target precursor messenger RNA (selective target pre-mRNA). The compositions of the invention include pre-trans-splicing molecules (PTMs) designed to interact with a target precursor messenger RNA molecule (target pre-mRNA) expressed within a cell and mediate a trans-splicing reaction resulting in the generation of a novel chimeric mRNA molecule (chimeric mRNA) capable of encoding a light producing protein or enzyme. Cell death is further mediated by the presence of a photosensitizer which upon photoactivation produces cytotoxicity.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: July 15, 2008
    Assignee: Virxsys Corporation
    Inventors: Lloyd G. Mitchell, Edward Otto, Carl R. Merril
  • Publication number: 20040248141
    Abstract: The present invention provides methods and compositions for generating novel nucleic acid molecules through targeted spliceosomal mediated RNA trans-splicing. The compositions of the invention include pre-trans-splicing molecules (PTMs) designed to interact with a target precursor messenger RNA molecule (target pre-mRNA) and mediate a trans-splicing reaction resulting in the generation of a novel chimeric RNA molecule (chimeric RNA). In particular, the PTMs of the present invention can be genetically engineered to interact with a specific target pre-mRNA expressed in cells of the skin so as to result in correction of genetic defects responsible for a variety of different skin disorders to encode a reporter molecule or protein that may have therapeutic benefit. The compositions of the invention further include recombinant vectors systems capable of expressing the PTMs of the invention and cells expressing said PTMs.
    Type: Application
    Filed: July 17, 2003
    Publication date: December 9, 2004
    Inventors: Lloyd G. Mitchell, Madaiah Puttaraju, Guenter Dallinger, Alfred Klausegger, Johann Bauer
  • Publication number: 20040214263
    Abstract: The invention provides molecules and methods for in vivo production of a trans-spliced molecule in selected cells. Pre-trans-splicing molecules of the invention are substrates for a trans-splicing reaction between the pre-trans-splicing molecules and a pre-mRNA which is uniquely expressed in the specific target cells. The in vivo trans-splicing reaction provides a novel mRNA which is functional as mRNA or encodes a protein to be expressed in the target cells. The mRNA expression product is a therapeutic protein, a toxin which causes killing of the specific cells, or a novel protein not normally present in such cells. The invention further provides genetically engineered PTMs for the identification of exon/intron boundaries of pre-mRNA molecules using an exon tagging method. The PTMs of the invention can also be designed to produce chimeric RNA encoding peptide affinity purification tags which can be used to purify and identify proteins expressed in a specific cell type.
    Type: Application
    Filed: March 20, 2002
    Publication date: October 28, 2004
    Inventors: Lloyd G. Mitchell, S. Gary Mansfield, Madaiah Puttaraju, Rebecca Clark, Mariano A. Garcia-Blanco