Patents by Inventor John P. Langmore

John P. Langmore 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: 7270958
    Abstract: Disclosed are a number of methods that can be used in a variety of embodiments, including, creation of a nucleic acid terminated at one or more selected bases, sequence analysis of nucleic acids, mapping of sequence motifs within a nucleic acid, positional mapping of nucleic acid clones, and analysis of telomeric regions. The methods utilize double-stranded templates, and in most aspects involve a strand replacement reaction initiated at one or more random or specific locations created in a nucleic acid molecule, and in certain aspects utilizing an oligonucleotide primer.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: September 18, 2007
    Assignee: The Regents of the University of Michigan
    Inventors: Vladimir L. Makarov, John P. Langmore
  • Patent number: 6828098
    Abstract: The disclosed invention relates to general and specific methods to use the Primer Extension/Nick Translation (PENT) reaction to create an amplifiable DNA strand, called a PENTAmer. A PENTAmers can be made for the purpose of amplifying a controlled length of DNA located at a controlled position within a DNA molecule, a process referred to as Positional Amplification by Nick Translation (PANT). In contrast to PCR, which amplifies DNA between two specific sequences, PANT can amplify DNA between two specific positions. PENTAmers can be created to amplify very large regions of DNA (up to 500,000 bp) as random mixtures (unordered positional libraries), or as molecules sorted according to position (ordered positional libraries). PANT is fast and economical, because PENTAmer preparation can be multiplexed. A single PENTAmer preparation can include very complex mixtures of DNA such as hundreds of large-insert clones, complete genomes, or cDNA libraries.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: December 7, 2004
    Assignee: The Regents of the University of Michigan
    Inventors: John P. Langmore, Vladimir L. Makarov
  • Publication number: 20040197791
    Abstract: The present invention is directed to amplification of a single nucleotide polymorphism by utilizing a library of nick translate molecules. The methods are also directed to highly multiplexed amplification of a nucleic acid sequence to facilitate detection of a single nucleotide polymorphism.
    Type: Application
    Filed: December 18, 2003
    Publication date: October 7, 2004
    Inventors: Vladimir L. Makarov, John P. Langmore
  • Patent number: 6762022
    Abstract: Disclosed are a number of methods that can be used in a variety of embodiments, including, creation of a nucleic acid terminated at one or more selected bases, sequence analysis of nucleic acids, mapping of sequence motifs within a nucleic acid, positional mapping of nucleic acid clones, and analysis of telomeric regions. The methods utilize double-stranded templates, and in most aspects involve a strand replacement reaction initiated at one or more random or specific locations created in a nucleic acid molecule, and in certain aspects utilizing an oligonucleotide primer.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: July 13, 2004
    Assignee: The Regents of the University of Michigan
    Inventors: Vladimir L. Makarov, John P. Langmore
  • Patent number: 6537757
    Abstract: An improvement over the standard Sanger Method for nucleic acid sequencing is described. The novel method does not require denaturation of double-stranded template; rather, sequencing can be carried out directly on the double-stranded template. Embodiments are described with and without oligonucleotide primers.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: March 25, 2003
    Assignee: The Regents of the University of Michigan
    Inventors: John P. Langmore, Vladimir L. Markarov
  • Publication number: 20030040620
    Abstract: The disclosed invention relates to general and specific methods to use the Primer Extension/Nick Translation (PENT) reaction to create an amplifiable DNA strand, called a PENTAmer. A PENTAmers can be made for the purpose of amplifying a controlled length of DNA located at a controlled position within a DNA molecule, a process referred to as Positional Amplification by Nick Translation (PANT). In contrast to PCR, which amplifies DNA between two specific sequences, PANT can amplify DNA between two specific positions. PENTAmers can be created to amplify very large regions of DNA (up to 500,000 bp) as random mixtures (unordered positional libraries), or as molecules sorted according to position (ordered positional libraries). PANT is fast and economical, because PENTAmer preparation can be multiplexed. A single PENTAmer preparation can include very complex mixtures of DNA such as hundreds of large-insert clones, complete genomes, or cDNA libraries.
    Type: Application
    Filed: May 18, 2001
    Publication date: February 27, 2003
    Inventors: John P. Langmore, Vladimir L. Makarov
  • Publication number: 20020042059
    Abstract: Disclosed are a number of methods that can be used in a variety of embodiments, including, creation of a nucleic acid terminated at one or more selected bases, sequence analysis of nucleic acids, mapping of sequence motifs within a nucleic acid, positional mapping of nucleic acid clones, and analysis of telomeric regions. The methods utilize double-stranded templates, and in most aspects involve a strand replacement reaction initiated at one or more random or specific locations created in a nucleic acid molecule, and in certain aspects utilizing an oligonucleotide primer.
    Type: Application
    Filed: March 6, 2001
    Publication date: April 11, 2002
    Applicant: The Regents of the University of Michigan
    Inventors: Vladimir L. Makarov, John P. Langmore
  • Patent number: 6197557
    Abstract: Disclosed are a number of methods that can be used in a variety of embodiments, including, creation of a nucleic acid terminated at one or more selected bases, sequence analysis of nucleic acids, mapping of sequence motifs within a nucleic acid, positional mapping of nucleic acid clones, and analysis of telomeric regions. The methods utilize double-stranded templates, and in most aspects involve a strand replacement reaction initiated at one or more random or specific locations created in a nucleic acid molecule, and in certain aspects utilizing an oligonucleotide primer.
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: March 6, 2001
    Assignee: The Regents of the University of Michigan
    Inventors: Vladimir L. Makarov, John P. Langmore
  • Patent number: 6117634
    Abstract: An improvement over the standard Sanger Method for nucleic acid sequencing is described. The novel method does not require denaturation of double-stranded template; rather, sequencing can be carried out directly on the double-stranded template. Embodiments are described with and without oligonucleotide primers.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: September 12, 2000
    Assignee: The Reagents of the University of Michigan
    Inventors: John P. Langmore, Vladimir L. Markarov