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:
February 27, 2024
Date of Patent:
October 20, 2026
Assignee:
Exact Sciences Corporation
Inventors:
Hatim T. Allawi, Graham P. Lidgard, Brian Aizenstein, Melissa M. Gray
Abstract: The invention provides novel methods and kits for fully automated high-throughput method for isolation of extracellular vesicles and co-isolation of cell-free DNA from biofluids, including cell-free DNA and/or cell-free DNA and nucleic acids including at least RNA from microvesicles, novel methods and kits for isolation of extracellular vesicles and co-isolation of cell-free DNA from biofluids, including cell-free DNA and/or cell-free DNA and nucleic acids including at least RNA from microvesicles that do not require the use of phenol or chloroform, and for extracting nucleic acids from the extracellular vesicles and/or from the biological samples.
Type:
Grant
Filed:
October 19, 2020
Date of Patent:
September 15, 2026
Assignee:
Exact Sciences Corporation
Inventors:
Georg Stoll, Daniel Enderle, Mikkel Noerholm, Johan Karl Olov Skog
Abstract: 5? hairpin oligonucleotide substrates for reversible repression, e.g., by temperature shift, of cleavage by flap endonucleases, and methods using 5? hairpin oligonucleotides.
Type:
Grant
Filed:
September 16, 2020
Date of Patent:
June 16, 2026
Assignee:
Exact Sciences Corporation
Inventors:
Zubin Gagrat, Michael B. Matter, Nicholas J. Domanico, Michael J. Domanico
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:
May 7, 2021
Date of Patent:
April 28, 2026
Assignees:
Exact Sciences Corporation, Mayo Foundation for Medical Education and Research
Inventors:
Hatim Allawi, Graham P. Lidgard, Maria Giakoumopoulos, David A. Ahlquist, William R. Taylor, Douglas Mahoney
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 pancreatic and colorectal cancer.
Type:
Grant
Filed:
October 18, 2023
Date of Patent:
April 21, 2026
Assignees:
Mayo Foundation for Medical Education and Research, Exact Sciences Corporation
Inventors:
David A. Ahlquist, John B. Kisiel, William R. Taylor, Tracy C. Yab, Douglas W. Mahoney, Graham P. Lidgard, Hatim T. Allawi
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 gastric cancer.
Type:
Grant
Filed:
November 14, 2023
Date of Patent:
April 14, 2026
Assignees:
Mayo Foundation for Medical Education and Research, Exact Sciences Corporation
Inventors:
David A. Ahlquist, William R. Taylor, John B. Kisiel, Tracy C. Yab, Douglas W. Mahoney, Hatim T. Allawi
Abstract: Provided herein is technology for endometrial cancer (EC) screening and particularly, but not exclusively, to methods, compositions, and related uses for detecting the presence of endometrial cancer and various subtypes of endometrial cancer.
Type:
Grant
Filed:
January 24, 2020
Date of Patent:
March 24, 2026
Assignees:
Mayo Foundation for Medical Education and Research, Exact Sciences Corporation
Inventors:
William R. Taylor, John B. Kisiel, Douglas W. Mahoney, David A. Ahlquist, Hatim T. Allawi, Maria Giakoumopoulos
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:
May 1, 2023
Date of Patent:
March 10, 2026
Assignee:
EXACT SCIENCES CORPORATION
Inventors:
Hatim Allawi, Graham P. Lidgard, Brian Aizenstein, Tamara J. Sander, Maria Giakoumopoulos, Michael W. Kaiser, Melissa M. Gray, Abram Michael Vaccaro
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:
Grant
Filed:
February 17, 2021
Date of Patent:
February 3, 2026
Assignees:
Mayo Foundation for Medical Education and Research, Exact Sciences Corporation
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
Abstract: Provided herein is technology for ovarian cancer screening and particularly, but not exclusively, to methods, compositions, and related uses for detecting the presence of ovarian cancer and sub-types of ovarian cancer (e.g., clear cell ovarian cancer, endometrioid ovarian cancer, mucinous ovarian cancer, serous ovarian cancer).
Type:
Grant
Filed:
June 1, 2023
Date of Patent:
October 14, 2025
Assignees:
Mayo Foundation for Medical Education and Research, Exact Sciences Corporation
Inventors:
William R. Taylor, John B. Kisiel, Douglas W. Mahoney, David A. Ahlquist, Hatim T. Allawi, Michael W. Kaiser
Abstract: Provided herein is technology relating to isolating nucleic acids. In particular, the technology relates to methods and kits for extracting nucleic acids from problematic samples such as stool.
Type:
Grant
Filed:
May 1, 2023
Date of Patent:
September 30, 2025
Assignee:
Exact Sciences Corporation
Inventors:
Janelle J. Bruinsma, Michael J. Domanico, Graham P. Lidgard, Hongzhi Zou, William G. Weisburg, Hemanth D. Shenoi, James P. Light, II, Keith Kopitzke, John Zeis
Abstract: Provided herein is technology relating to performing methylation assays. In particular, the technology relates to internal controls for methylation assays.
Type:
Grant
Filed:
August 23, 2021
Date of Patent:
September 16, 2025
Assignees:
Exact Sciences Corporation, 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
Abstract: A cleavage-based real-time PCR assay method is provided. In general terms, the assay method includes subjecting a reaction mixture comprising a) PCR reagents for amplifying a nucleic acid target, and b) flap cleavage reagents for performing a flap cleavage assay on the amplified nucleic acid target to two sets of thermocycling conditions. No additional reagents are added to the reaction between said first and second sets of cycles and, in each cycle of the second set of cycles, cleavage of a flap probe is measured.
Type:
Grant
Filed:
October 12, 2022
Date of Patent:
August 19, 2025
Assignee:
Exact Sciences Corporation
Inventors:
Rebecca Oldham-Haltom, Hongzhi Zou, Graham P. Lidgard, Michael J. Domanico, Hatim Allawi
Abstract: Provided herein is technology relating to the amplification-based detection of nucleic acids and particularly, but not exclusively, to methods and compositions for minimizing variability in the activity between different samples or manufacturing lots of DNA polymerases, such as Taq DNA polymerase.
Type:
Grant
Filed:
June 6, 2023
Date of Patent:
August 12, 2025
Assignee:
Exact Sciences Corporation
Inventors:
Hatim Allawi, Rebecca Oldham-Haltom, Zubin Gagrat, Michael Domanico, Graham Lidgard
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:
Grant
Filed:
May 3, 2022
Date of Patent:
October 7, 2025
Assignees:
Mayo Foundation for Medical Education and Research, Exact Sciences Corporation
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
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:
Grant
Filed:
May 3, 2022
Date of Patent:
February 24, 2026
Assignees:
Mayo Foundation for Medical Education and Research, Exact Sciences Corporation
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