Patents by Inventor Ron Hernan

Ron Hernan 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: 7094548
    Abstract: The present invention provides novel identification polypeptides containing multiple copies of an antigenic domain joined in tandem to provide increased sensitivity for the detection and purification of target peptides, a cleavable linking sequence and optionally a spacer domain. Further provided are hybrid polypeptide molecules composed of an identification polypeptide and a target peptide which are produced by recombinant DNA technology and purified using affinity chromatography using one or more ligands. Accordingly, also provided are DNA expression vectors containing DNA encoding for identification polypeptides and methods for using such identification polypeptides for the purification of target peptides. Also provided are methods of constructing DNA vectors encoding the novel identification polypeptides and DNA expression vectors encoding the identification polypeptides linked to a target peptide.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: August 22, 2006
    Assignee: Sigma-Aldrich Co.
    Inventors: Billy L Brizzard, Ron Hernan
  • Publication number: 20060088878
    Abstract: The present invention provides novel identification polypeptides containing multiple copies of an antigenic domain joined in tandem to provide increased sensitivity for the detection and purification of target peptides, a cleavable linking sequence and optionally a spacer domain. Further provided are hybrid polypeptide molecules composed of an identification polypeptide and a target peptide which are produced by recombinant DNA technology and purified using affinity chromatography using one or more ligands. Accordingly, also provided are DNA expression vectors containing DNA encoding for identification polypeptides and methods for using such identification polypeptides for the purification of target peptides. Also provided are methods of constructing DNA vectors encoding the novel identification polypeptides and DNA expression vectors encoding the identification polypeptides linked to a target peptide.
    Type: Application
    Filed: December 9, 2005
    Publication date: April 27, 2006
    Applicant: Sigma-Aldrich Co.
    Inventors: Billy Brizzard, Ron Hernan
  • Publication number: 20060003353
    Abstract: Amplification mixtures, kits, amplicons, kits and processes are provided for amplifying a nucleic acid. In particular, provided are processes which utilize an amplification mixture comprising a polymerase, a deoxynucleotidetriphosphate (dNTP) mixture which contains modified dNTPs, a first primer and a second primer. Further provided are dNTP mixtures which contain modified dNTPs for at least two of the four nucleotide triphosphates, which when incorporated into a polynucelotide, impart resistance to enzymatic degradation by an exonuclease at the sites of incorporation of the modified dNTPs. Also provided are the amplicons and vectors which incorporate the modified nucleotides.
    Type: Application
    Filed: May 2, 2005
    Publication date: January 5, 2006
    Applicant: Sigma-Aldrich Co.
    Inventors: Brian Ward, Leanne Snyder, Chuan Li, Keming Song, Kristen Opper, Stephanie Uder, Ron Hernan
  • Publication number: 20050208564
    Abstract: Amplification mixtures, kits, amplicons, kits and processes are provided for amplifying a nucleic acid. In particular, provided are processes which utilize an amplification mixture comprising a polymerase, a deoxynucleotidetriphosphate (DNTP) mixture which contains modified dNTPs, a first primer and a second primer. Further provided are DNTP mixtures which contain modified dNTPs for at least two of the four nucleotide triphosphates, which when incorporated into a polynucelotide, impart resistance to enzymatic degradation by an exonuclease at the sites of incorporation of the modified dNTPs. Also provided are the amplicons and vectors which incorporate the modified nucleotides.
    Type: Application
    Filed: May 2, 2005
    Publication date: September 22, 2005
    Applicant: Sigma-Aldrich Co.
    Inventors: Brian Ward, Leanne Snyder, Chuan Li, Keming Song, Kristen Opper, Stephanie Uder, Ron Hernan
  • Patent number: 6902914
    Abstract: Amplification mixtures, kits, amplicons, kits and processes are provided for amplifying a nucleic acid. In particular, provided are processes which utilize an amplification mixture comprising a polymerase, a deoxynucleotidetriphosphate (dNTP) mixture which contains modified dNTPs, a first primer and a second primer. Further provided are dNTP mixtures which contain modified dNTPs for at least two of the four nucleotide triphosphates, which when incorporated into a polynucelotide, impart resistance to enzymatic degradation by an exonuclease at the sites of incorporation of the modified dNTPs. Also provided are the amplicons and vectors which incorporate the modified nucleotides.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: June 7, 2005
    Assignee: Sigma-Aldrich, Co.
    Inventors: Brian Ward, Leanne M. Snyder, Chuan Li, Keming Song, Kristen E. Opper, Stephanie Uder, Ron Hernan
  • Publication number: 20030099956
    Abstract: Amplification mixtures, kits, amplicons, kits and processes are provided for amplifying a nucleic acid. In particular, provided are processes which utilize an amplification mixture comprising a polymerase, a deoxynucleotidetriphosphate (dNTP) mixture which contains modified dNTPs, a first primer and a second primer. Further provided are dNTP mixtures which contain modified dNTPs for at least two of the four nucleotide triphosphates, which when incorporated into a polynucelotide, impart resistance to enzymatic degradation by an exonuclease at the sites of incorporation of the modified dNTPs. Also provided are the amplicons and vectors which incorporate the modified nucleotides.
    Type: Application
    Filed: November 15, 2001
    Publication date: May 29, 2003
    Inventors: Brian Ward, Leanne M. Snyder, Chuan Li, Keming Song, Kristen E. Opper, Stephanie Uder, Ron Hernan
  • Patent number: 6379903
    Abstract: The present invention provides novel identification polypeptides containing multiple copies of an antigenic domain joined in tandem to provide increased sensitivity for the detection and purification of target peptides, a cleavable linking sequence and optionally a spacer domain. Further provided are hybrid polypeptide molecules composed of an identification polypeptide and a target peptide which are produced by recombinant DNA technology and purified using affinity chromatography using one or more ligands. Accordingly, also provided are DNA expression vectors containing DNA encoding for identification polypeptides and methods for using such identification polypeptides for the purification of target peptides. Also provided are methods of constructing DNA vectors encoding the novel identification polypeptides and DNA expression vectors encoding the identification polypeptides linked to a target peptide.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: April 30, 2002
    Assignee: Sigma-Aldrich Co.
    Inventors: Billy L. Brizzard, Ron Hernan
  • Publication number: 20020045193
    Abstract: The present invention provides novel identification polypeptides containing multiple copies of an antigenic domain joined in tandem to provide increased sensitivity for the detection and purification of target peptides, a cleavable linking sequence and optionally a spacer domain. Further provided are hybrid polypeptide molecules composed of an identification polypeptide and a target peptide which are produced by recombinant DNA technology and purified using affinity chromatography using one or more ligands. Accordingly, also provided are DNA expression vectors containing DNA encoding for identification polypeptides and methods for using such identification polypeptides for the purification of target peptides. Also provided are methods of constructing DNA vectors encoding the novel identification polypeptides and DNA expression vectors encoding the identification polypeptides linked to a target peptide.
    Type: Application
    Filed: October 3, 2001
    Publication date: April 18, 2002
    Applicant: Sigma-Aldrich Co.
    Inventors: Billy L. Brizzard, Ron Hernan