Patents by Inventor Connie J. Hansen

Connie J. Hansen 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: 9758773
    Abstract: The invention provides mutants of DNA polymerases having an enhanced resistance to inhibitors of DNA polymerase activity. The mutant polymerases are well suited for PCR amplification of targets in samples that contain inhibitors of wild-type polymerases.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: September 12, 2017
    Assignee: Agilent Technologies, Inc.
    Inventors: Nancy Mckinney, Holly H. Hogrefe, Jeffrey Fox, Connie J. Hansen, Bahram Arezi
  • Patent number: 9523085
    Abstract: The present invention provides mutants of DNA polymerases having an increased rate of incorporation of nucleotides into nucleic acids undergoing polymerization and having an enhanced resistance to inhibitors of DNA polymerase activity. The mutant polymerases are well suited for fast PCR applications, for PCR amplification of targets in samples that contain inhibitors of wild-type polymerases, and for fast PCR amplification of samples containing DNA polymerase inhibitors. In exemplary embodiments, the mutants are mutants of Taq DNA polymerase.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: December 20, 2016
    Assignee: Agilent Technologies Inc.
    Inventors: Holly Hogrefe, Michelle Cayouette, Jeffrey Fox, Connie J. Hansen, Jennifer Lapira, Bahram Arezi, Nancy McKinney
  • Publication number: 20150232821
    Abstract: The invention provides mutants of DNA polymerases having an enhanced resistance to inhibitors of DNA polymerase activity. The mutant polymerases are well suited for PCR amplification of targets in samples that contain inhibitors of wild-type polymerases.
    Type: Application
    Filed: December 12, 2014
    Publication date: August 20, 2015
    Applicant: AGILENT TECHNOLOGIES, INC.
    Inventors: Nancy Mckinney, Holly H. Hogrefe, Jeffrey Fox, Connie J. Hansen, Bahram Arezi
  • Patent number: 7943358
    Abstract: The invention provides novel extracts, proteins, and complexes that improve the polymerization activity of nucleic acid polymerases. Included within the aspects of the invention are methods for identifying compositions with a polymerase enhancing activity, methods for purifying and using these compositions, and specific extracts, proteins, and complexes that function to enhance polymerase activity. As an example, specifically described is nucleotide and amino acid sequence information for a Pyrococcus furiousus PEF (P45), which was used to produce a recombinant PEF.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: May 17, 2011
    Assignee: Agilent Technologies, Inc.
    Inventors: Connie J. Hansen, Holly Hogrefe, Michael Borns, Michael Muhich
  • Publication number: 20110027833
    Abstract: The present invention provides mutants of DNA polymerases having an increased rate of incorporation of nucleotides into nucleic acids undergoing polymerization and having an enhanced resistance to inhibitors of DNA polymerase activity. The mutant polymerases are well suited for fast PCR applications, for PCR amplification of targets in samples that contain inhibitors of wild-type polymerases, and for fast PCR amplification of samples containing DNA polymerase inhibitors. In exemplary embodiments, the mutants are mutants of Taq DNA polymerase.
    Type: Application
    Filed: August 2, 2010
    Publication date: February 3, 2011
    Inventors: Holly Hogrefe, Michelle Cayouette, Jeffrey Fox, Connie J. Hansen, Jennifer Lapira, Bahram Arezi, Nancy McKinney
  • Patent number: 7625725
    Abstract: The invention provides novel extracts, proteins, and complexes that improve the polymerization activity of nucleic acid polymerases. Included within the aspects of the invention are methods for identifying compositions with a polymerase enhancing activity, methods for purifying and using these compositions, and specific extracts, proteins, and complexes that function to enhance polymerase activity. As an example, specifically described is nucleotide and amino acid sequence information for Pyrococcus furiousus PEF (P45), which was used to produce a recombinant PEF.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: December 1, 2009
    Assignee: Stratagene California
    Inventors: Holly Hogrefe, Connie J. Hansen
  • Publication number: 20080199935
    Abstract: The invention features a novel isolated Family B DNA polymerase, a Thermococcus polymerase JDF-3, and mutant recombinant forms thereof. Mutant polymerases of the invention are deficient in 3? to 5? exonuclease activity and/or exhibit reduced discrimination against non-conventional nucleotides relative to the wild-type form of the polymerase.
    Type: Application
    Filed: December 22, 2006
    Publication date: August 21, 2008
    Applicant: Stratagene California
    Inventors: Joseph A. Sorge, Holly Hogrefe, Connie J. Hansen
  • Publication number: 20080145897
    Abstract: The invention provides novel extracts, proteins, and complexes that improve the polymerization activity of nucleic acid polymerases. Included within the aspects of the invention are methods for identifying compositions with a polymerase enhancing activity, methods for purifying and using these compositions, and specific extracts, proteins, and complexes that function to enhance polymerase activity. As an example, specifically described is nucleotide and amino acid sequence information for a Pyrococcus furiousus PEF (P45), which was used to produce a recombinant PEF.
    Type: Application
    Filed: December 4, 2006
    Publication date: June 19, 2008
    Inventors: Holly Hogrefe, Connie J. Hansen
  • Patent number: 6734293
    Abstract: The invention provides novel extracts, proteins, and complexes that improve the polymerization activity of nucleic acid polymerases. Included within the aspects of the invention are methods for identifying compositions with a polymerase enhancing activity, methods for purifying and using these compositions, and specific extracts, proteins, and complexes that function to enhance polymerase activity. As an example, specifically described is nucleotide and amino acid sequence information for a Pyrococcus furiousus PEF (P45), which was used to produce a recombinant PEF.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: May 11, 2004
    Assignee: Stratagene
    Inventors: Holly Hogrefe, Connie J. Hansen