Patents by Inventor Graham P. Lidgard

Graham P. Lidgard 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: 20220042111
    Abstract: Provided herein is technology relating to performing methylation assays. In particular, the technology relates to internal controls for methylation assays.
    Type: Application
    Filed: August 23, 2021
    Publication date: February 10, 2022
    Inventors: David Alan Ahlquist, William Russell Taylor, Douglas W. Mahoney, Graham P. Lidgard, Hatim T. Allawi, Abram Michael Vaccaro
  • Publication number: 20210404015
    Abstract: A method of sample analysis is provided. In certain embodiments, the method involves: a) amplifying a product from a sample that comprises both wild type copies of a genomic locus and mutant copies of the genomic locus that have a point mutation relative to said wild type copies of the genomic locus, to produce an amplified sample, where: i. the amplifying is done using a first primer and a second primer; and ii. the first primer comprises a 3? terminal nucleotide that base pairs with the point mutation and also comprises a nucleotide sequence that is fully complementary to a sequence in the locus with the exception of a single base mismatch within 6 bases of the 3? terminal nucleotide; and b) detecting the presence of said product in said amplified sample using a flap assay that employs an invasive oligonucleotide. A kit for performing the method is also provided.
    Type: Application
    Filed: July 8, 2021
    Publication date: December 30, 2021
    Inventors: Hongzhi Zou, Graham P. Lidgard, Michael J. Domanico, Hatim Allawi
  • Patent number: 11208680
    Abstract: The present invention provides synthetic DNA strands that find use as process controls in DNA processing and nucleic acid testing methods. In particular, provided herein are synthetic methylated DNA strands of known composition for use as control molecules in DNA testing, e.g., of mutations and/or methylation of DNA isolated from non-fish samples, such as human samples.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: December 28, 2021
    Assignee: Exact Sciences Development Company, LLC
    Inventors: Hatim T. Allawi, Graham P. Lidgard, Brian Aizenstein, Melissa M. Gray
  • Publication number: 20210381066
    Abstract: Provided herein is technology for esophageal disorder screening and particularly, but not exclusively, to methods, compositions, and related uses for detecting the presence of esophageal disorders (e.g., Barrett's esophagus, Barrett's esophageal dysplasia, etc.). In addition, the technology provides methods, compositions and related uses for distinguishing between Barrett's esophagus and Barrett's esophageal dysplasia, and between Barrett's esophageal low-grade dysplasia, Barrett's esophageal high-grade dysplasia, and esophageal adenocarcinoma within samples obtained through endoscopic brushing or nonendoscopic whole esophageal brushing or swabbing using a tethered device (e.g. such as a capsule sponge, balloon, or other device).
    Type: Application
    Filed: August 24, 2021
    Publication date: December 9, 2021
    Inventors: David A. Ahlquist, William R. Taylor, John B. Kisiel, Douglas W. Mahoney, Tracy C. Yab, Graham P. Lidgard, Hatim T. Allawi
  • Patent number: 11193168
    Abstract: Provided herein is technology relating to the amplification-based detection of bisulfite-treated DNAs and particularly, but not exclusively, to methods and compositions for multiplex amplification of low-level sample DNA prior to further characterization of the sample DNA. The technology further provides methods for isolating DNA from blood or blood product samples, e.g., plasma samples.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: December 7, 2021
    Assignee: Exact Sciences Development Company, LLC
    Inventors: Hatim T. Allawi, William G. Weisburg, Graham P. Lidgard, Michael W. Kaiser, Abram M. Vaccaro, Gracie Shea
  • Publication number: 20210348239
    Abstract: Provided herein is technology relating to detecting neoplasia and particularly, but not exclusively, to methods, compositions, and related uses for detecting premalignant and malignant neoplasms such as colorectal cancer.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 11, 2021
    Inventors: David A. Ahlquist, William R. Taylor, Douglas W. Mahoney, Graham P. Lidgard, Hatim T. Allawi
  • Patent number: 11118228
    Abstract: Provided herein is technology for neoplasia screening, and particularly, but not exclusively, to methods, compositions, and related uses for detecting the presence of cancer, in particular, colorectal cancer.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: September 14, 2021
    Assignees: Exact Sciences Development Company, LLC, Mayo Foundation for Medical Education and Research
    Inventors: Hatim T. Allawi, Michael W. Kaiser, Graham P. Lidgard, William R. Taylor, Tamara J. Sander, Abram M. Vaccaro
  • Patent number: 11118230
    Abstract: Provided herein is technology relating to performing methylation assays. In particular, the technology relates to internal controls for methylation assays.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: September 14, 2021
    Assignees: Exact Sciences Development Company, LLC, Mayo Foundation for Medical Education and Research
    Inventors: David Alan Ahlquist, William Russell Taylor, Douglas W. Mahoney, Graham P. Lidgard, Hatim T. Allawi, Abram Michael Vaccaro
  • Patent number: 11104960
    Abstract: Provided herein is technology for esophageal disorder screening and particularly, but not exclusively, to methods, compositions, and related uses for detecting the presence of esophageal disorders (e.g., Barrett's esophagus, Barrett's esophageal dysplasia, etc.). In addition, the technology provides methods, compositions and related uses for distinguishing between Barrett's esophagus and Barrett's esophageal dysplasia, and between Barrett's esophageal low-grade dysplasia, Barrett's esophageal high-grade dysplasia, and esophageal adenocarcinoma within samples obtained through endoscopic brushing or nonendoscopic whole esophageal brushing or swabbing using a tethered device (e.g. such as a capsule sponge, balloon, or other device).
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: August 31, 2021
    Assignees: Exact Sciences Development Company, LLC, Mayo Foundation for Medical Education and Research
    Inventors: David A. Ahlquist, William R. Taylor, John B. Kisiel, Douglas W. Mahoney, Tracy C. Yab, Graham P. Lidgard, Hatim T. Allawi
  • Publication number: 20210262042
    Abstract: Provided herein is technology for lung neoplasia screening and particularly, but not exclusively, to methods, compositions, and related uses for detecting the presence of lung cancer.
    Type: Application
    Filed: May 7, 2021
    Publication date: August 26, 2021
    Inventors: Hatim Allawi, Graham P. Lidgard, Maria Giakoumopoulos, David A. Ahlquist, William R. Taylor, Douglas Mahoney
  • Patent number: 11091812
    Abstract: A method of sample analysis is provided. In certain embodiments, the method involves: a) amplifying a product from a sample that comprises both wild type copies of a genomic locus and mutant copies of the genomic locus that have a point mutation relative to said wild type copies of the genomic locus, to produce an amplified sample, where: i. the amplifying is done using a first primer and a second primer; and ii. the first primer comprises a 3? terminal nucleotide that base pairs with the point mutation and also comprises a nucleotide sequence that is fully complementary to a sequence in the locus with the exception of a single base mismatch within 6 bases of the 3? terminal nucleotide; and b) detecting the presence of said product in said amplified sample using a flap assay that employs an invasive oligonucleotide. A kit for performing the method is also provided.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: August 17, 2021
    Assignee: EXACT SCIENCES DEVELOPMENT COMPANY, LLC
    Inventors: Hongzhi Zou, Graham P. Lidgard, Michael J. Domanico, Hatim Allawi
  • Publication number: 20210244388
    Abstract: Provided herein is technology relating to collecting and preparing samples. For example, the technology relates particularly, but not exclusively, to devices, systems, and kits that allow a subject to collect and prepare a sample for analysis.
    Type: Application
    Filed: April 28, 2021
    Publication date: August 12, 2021
    Inventors: Graham P. Lidgard, Michael J. Domanico, Keith Fourrier, James P. Light, II, Scott Castanon, Keith Kopitzke
  • Patent number: 11078539
    Abstract: Provided herein is technology relating to detecting neoplasia and particularly, but not exclusively, to methods, compositions, and related uses for detecting premalignant and malignant neoplasms such as colorectal cancer.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: August 3, 2021
    Assignees: Mayo Foundation for Medical Education and Research, Exact Sciences Development Company, LLC
    Inventors: David A. Ahlquist, William R. Taylor, Douglas W. Mahoney, Graham P. Lidgard, Hatim T. Allawi
  • Publication number: 20210222255
    Abstract: A method for detecting a methylated genomic locus is provided. In certain embodiments, the method comprises: a) treating a nucleic acid sample that contains both unmethylated and methylated copies of a genomic locus with an agent that modifies cytosine to uracil to produce a treated nucleic acid; b) amplifying a product from the treated nucleic acid using a first primer and a second primer, wherein the first primer hybridizes to a site in the locus that contain methylcytosines and the amplifying preferentially amplifies the methylated copies of the genomic locus, to produce an amplified sample; and c) detecting the presence of amplified methylated copies of the genomic locus in the amplified sample using a flap assay that employs an invasive oligonucleotide having a 3? terminal G or C nucleotide that corresponds to a site of methylation in the genomic locus.
    Type: Application
    Filed: February 8, 2021
    Publication date: July 22, 2021
    Inventors: Graham P. Lidgard, Michael J. Domanico, Hatim Allawi, Hongzhi Zou
  • Publication number: 20210207224
    Abstract: Provided herein is technology for breast cancer screening and particularly, but not exclusively, to methods, compositions, and related uses for detecting the presence of breast cancer.
    Type: Application
    Filed: March 18, 2021
    Publication date: July 8, 2021
    Inventors: David A. Ahlquist, William R. Taylor, Douglas W. Mahoney, Tracy C. Yab, John B. Kisiel, Hatim T. Allawi, Graham P. Lidgard, Michael W. Kaiser
  • Publication number: 20210172023
    Abstract: The present invention provides synthetic DNA strands that find use as controls or in nucleic acid testing methods. In particular, provided herein are synthetic DNA strands of known composition for use as control molecules in stool DNA testing, e.g., of mutations and/or methylation of DNA isolated from stool samples.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 10, 2021
    Inventors: Ilse A. Tyler, Keith Yaeger, Michael J. Domanico, Hatim Allawi, Graham P. Lidgard
  • Publication number: 20210172027
    Abstract: Provided herein is technology for breast cancer screening and particularly, but not exclusively, to methods, compositions, and related uses for detecting the presence of breast cancer.
    Type: Application
    Filed: February 17, 2021
    Publication date: June 10, 2021
    Inventors: David A. Ahlquist, William R. Taylor, Douglas W. Mahoney, Tracy C. Yab, John B. Kisiel, Hatim T. Allawi, Graham P. Lidgard, Michael W. Kaiser
  • Patent number: 11028447
    Abstract: Provided herein is technology for lung neoplasia screening and particularly, but not exclusively, to methods, compositions, and related uses for detecting the presence of lung cancer.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: June 8, 2021
    Inventors: Hatim Allawi, Graham P. Lidgard, Maria Giakoumopoulos, David A. Ahlquist, William R. Taylor, Douglas Mahoney
  • Patent number: 11020096
    Abstract: Provided herein is technology relating to collecting and preparing samples. For example, the technology relates particularly, but not exclusively, to devices, systems, and kits that allow a subject to collect and prepare a sample for analysis.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: June 1, 2021
    Assignee: Exact Sciences Corporation
    Inventors: Graham P. Lidgard, Michael J. Domanico, Keith Fourrier, James P. Light, II, Scott Castanon, Keith Kopitzke
  • Publication number: 20210155993
    Abstract: Provided herein is technology for lung neoplasia screening and particularly, but not exclusively, to methods, compositions, and related uses for detecting the presence of lung cancer.
    Type: Application
    Filed: October 23, 2020
    Publication date: May 27, 2021
    Inventors: Hatim Allawi, Graham P. Lidgard, Chateen Krueger, Michael W. Kaiser, Tamara J. Sander