Patents by Inventor Anton VALOUEV

Anton VALOUEV 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: 12626780
    Abstract: A system, method and computer program product for analyzing data of high dimensionality (e.g., sequence reads of nucleic acid samples in connection with a disease condition) are provided.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: May 12, 2026
    Assignee: GRAIL, Inc.
    Inventors: Darya Filippova, Anton Valouev, Virgil Nicula, Karthik Jagadeesh, M. Cyrus Maher, Matthew H. Larson, Monica Portela dos Santos Pimentel, Robert Abe Paine Calef
  • Publication number: 20260120798
    Abstract: Technical solutions for classifying patients with respect to multiple cancer classes are provided. The classification can be done using cell-free whole genome sequencing information from subjects. A reference set of subjects is used to train classifiers to recognize genomic markers that distinguish such cancer classes. The classifier training includes dividing the reference genome into a set of non-overlapping bins, applying a dimensionality reduction method to obtain a feature set, and using the feature set to train classifiers. For subjects with unknown cancer class, the trained classifiers provide probabilities or likelihoods that the subject has a respective cancer class for each cancer in a set of cancer classes. The present disclosure thus describes methods to improve the screening and detection of cancer class from among several cancer classes. This serves to facilitate early and appropriate treatment for subjects afflicted with cancer.
    Type: Application
    Filed: November 21, 2024
    Publication date: April 30, 2026
    Applicant: GRAIL, Inc.
    Inventors: M. Cyrus MAHER, Anton VALOUEV, Darya FILIPPOVA, Virgil NICULA, Karthik JAGADEESH, Oliver Claude VENN, Samuel S. GROSS, John F. BEAUSANG, Robert Abe Paine CALEF
  • Publication number: 20260105989
    Abstract: Classification of cancer condition, in a plurality of different cancer conditions, for a species, is provided in which, for each training subject in a plurality of training subjects, there is obtained a cancer condition and a genotypic data construct including genotypic information for the respective training subject. Genotypic constructs are formatted into corresponding vector sets comprising one or more vectors. Vector sets are provided to a network architecture including a convolutional neural network path comprising at least a first convolutional layer associated with a first filter that comprise a first set of filter weights and a scorer. Scores, corresponding to the input of vector sets into the network architecture, are obtained from the scorer. Comparison of respective scores to the corresponding cancer condition of the corresponding training subjects is used to adjust the filter weights thereby training the network architecture to classify cancer condition.
    Type: Application
    Filed: July 2, 2025
    Publication date: April 16, 2026
    Applicant: GRAIL, Inc.
    Inventors: Virgil NICULA, Anton VALOUEV, Darya FILIPPOVA, Matthew H. LARSON, M. Cyrus MAHER, Monica Portela dos Santos Pimentel, Robert Abe Paine CALEF, Collin MELTON
  • Patent number: 12509726
    Abstract: Described herein are methods of preparing dual-indexed nucleic acid libraries for methylation profiling using bisulfite conversion sequencing. In various embodiments, the methods use a two-step indexing process to tag bisulfite-treated DNA with unique molecular identifiers (UMIs).
    Type: Grant
    Filed: February 20, 2025
    Date of Patent: December 30, 2025
    Assignee: GRAIL, Inc.
    Inventors: Anton Valouev, Arash Jamshidi
  • Publication number: 20250349431
    Abstract: A predictive cancer model generates a cancer prediction for an individual of interest by analyzing values of one or more types of features that are derived from cfDNA obtained from the individual. Specifically, cfDNA from the individual is sequenced to generate sequence reads using one or more physical assays, examples of which include a small variant sequencing assay, whole genome sequencing assay, and methylation sequencing assay. The sequence reads of the physical assays are processed through corresponding computational analyses to generate each of small variant features, whole genome features, and methylation features. The values of features can be provided to a predictive cancer model that generates a cancer prediction. In some embodiments, the values of different types of features can be separately provided into different predictive models. Each separate predictive model can output a score that can serve as input into an overall model that outputs the cancer prediction.
    Type: Application
    Filed: July 16, 2025
    Publication date: November 13, 2025
    Inventors: Earl Hubbell, Samuel S. Gross, Darya Filippova, Ling Shen, Oliver Claude Venn, Alexander Weaver Blocker, Nan Zhang, Tara Maddala, Alex Aravanis, Qinwen Liu, Anton Valouev, Virgil Nicula, Richard T. Williams
  • Patent number: 12380964
    Abstract: Classification of cancer condition, in a plurality of different cancer conditions, for a species, is provided in which, for each training subject in a plurality of training subjects, there is obtained a cancer condition and a genotypic data construct including genotypic information for the respective training subject. Genotypic constructs are formatted into corresponding vector sets comprising one or more vectors. Vector sets are provided to a network architecture including a convolutional neural network path comprising at least a first convolutional layer associated with a first filter that comprise a first set of filter weights and a scorer. Scores, corresponding to the input of vector sets into the network architecture, are obtained from the scorer. Comparison of respective scores to the corresponding cancer condition of the corresponding training subjects is used to adjust the filter weights thereby training the network architecture to classify cancer condition.
    Type: Grant
    Filed: August 31, 2023
    Date of Patent: August 5, 2025
    Assignee: GRAIL, Inc.
    Inventors: Virgil Nicula, Anton Valouev, Darya Filippova, Matthew H. Larson, M. Cyrus Maher, Monica Portela dos Santos Pimentel, Robert Abe Paine Calef, Collin Melton
  • Publication number: 20250197935
    Abstract: Described herein are methods of preparing dual-indexed nucleic acid libraries for methylation profiling using bisulfite conversion sequencing. In various embodiments, the methods use a two-step indexing process to tag bisulfite-treated DNA with unique molecular identifiers (UMIs).
    Type: Application
    Filed: February 20, 2025
    Publication date: June 19, 2025
    Inventors: Anton Valouev, Arash Jamshidi
  • Patent number: 12264364
    Abstract: Described herein are methods of preparing dual-indexed nucleic acid libraries for methylation profiling using bisulfite conversion sequencing. In various embodiments, the methods use a two-step indexing process to tag bisulfite-treated DNA with unique molecular identifiers (UMIs).
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: April 1, 2025
    Assignee: GRAIL, Inc.
    Inventors: Anton Valouev, Arash Jamshidi
  • Publication number: 20250101526
    Abstract: A system generates a cancer detection panel. The system is configured to generate an assay having a minimized size and number of genomic regions while still detecting the presence of cancer at or above a specific performance threshold. To select the genomic regions for the panel, the system employs a classification model. The classification model receives a set of genomic regions that may be associated with disease presence. The model then determines a sensitivity score for each genomic region and ranks the regions according to their score. The sensitivity score is based on a likelihood that variations in the genomic region are indicative of cancer. The model then selects genomic regions for the panel based on their rank. The model only selects as many genomic indicators as are needed for desired detection performance. The genomic regions can be associated with solid or liquid cancers, viral regions, or cancer hotspots.
    Type: Application
    Filed: June 28, 2024
    Publication date: March 27, 2025
    Inventors: Jing Xiang, Anton Valouev
  • Patent number: 12191000
    Abstract: Technical solutions for classifying patients with respect to multiple cancer classes are provided. The classification can be done using cell-free whole genome sequencing information from subjects. A reference set of subjects is used to train classifiers to recognize genomic markers that distinguish such cancer classes. The classifier training includes dividing the reference genome into a set of non-overlapping bins, applying a dimensionality reduction method to obtain a feature set, and using the feature set to train classifiers. For subjects with unknown cancer class, the trained classifiers provide probabilities or likelihoods that the subject has a respective cancer class for each cancer in a set of cancer classes. The present disclosure thus describes methods to improve the screening and detection of cancer class from among several cancer classes. This serves to facilitate early and appropriate treatment for subjects afflicted with cancer.
    Type: Grant
    Filed: January 6, 2023
    Date of Patent: January 7, 2025
    Assignee: GRAIL, INC.
    Inventors: M. Cyrus Maher, Anton Valouev, Darya Filippova, Virgil Nicula, Karthik Jagadeesh, Oliver Claude Venn, Samuel S. Gross, John F. Beausang, Robert Abe Paine Calef
  • Publication number: 20240062849
    Abstract: Classification of cancer condition, in a plurality of different cancer conditions, for a species, is provided in which, for each training subject in a plurality of training subjects, there is obtained a cancer condition and a genotypic data construct including genotypic information for the respective training subject. Genotypic constructs are formatted into corresponding vector sets comprising one or more vectors. Vector sets are provided to a network architecture including a convolutional neural network path comprising at least a first convolutional layer associated with a first filter that comprise a first set of filter weights and a scorer. Scores, corresponding to the input of vector sets into the network architecture, are obtained from the scorer. Comparison of respective scores to the corresponding cancer condition of the corresponding training subjects is used to adjust the filter weights thereby training the network architecture to classify cancer condition.
    Type: Application
    Filed: August 31, 2023
    Publication date: February 22, 2024
    Applicant: GRAIL, LLC
    Inventors: Virgil NICULA, Anton VALOUEV, Darya FILIPPOVA, Matthew H. LARSON, M. Cyrus MAHER, Monica Portela dos Santos Pimentel, Robert Abe Paine CALEF, Collin MELTON
  • Publication number: 20240002951
    Abstract: A method of classifying a liver disease by analyzing a DNA sample, wherein the DNA sample comprises cfDNA and/or blood cell DNA, the method comprising: obtaining the DNA sample; determining CpG methylation status at CpG sites of DNA molecules of the DNA sample; identifying a methylation pattern based on the CpG methylation status of the DNA molecules; assigning to the sample a liver disease classification based on the methylation pattern.
    Type: Application
    Filed: November 30, 2021
    Publication date: January 4, 2024
    Inventors: Leila Celeste SIDOW, Arend SIDOW, Anton VALOUEV, Aijaz AHMED
  • Publication number: 20230340603
    Abstract: A method of classifying a liver disease by analyzing a DNA sample, wherein the DNA sample comprises cfDNA and/or blood cell DNA, the method comprising: obtaining the DNA sample; determining CpG methylation status at CpG sites of DNA molecules of the DNA sample; identifying a methylation pattern based on the CpG methylation status of the DNA molecules; assigning to the sample a liver disease classification based on the methylation pattern.
    Type: Application
    Filed: June 29, 2023
    Publication date: October 26, 2023
    Inventors: Leila Celeste SIDOW, Arend SIDOW, Anton VALOUEV, Aijaz AHMED
  • Patent number: 11783915
    Abstract: Classification of cancer condition, in a plurality of different cancer conditions, for a species, is provided in which, for each training subject in a plurality of training subjects, there is obtained a cancer condition and a genotypic data construct including genotypic information for the respective training subject. Genotypic constructs are formatted into corresponding vector sets comprising one or more vectors. Vector sets are provided to a network architecture including a convolutional neural network path comprising at least a first convolutional layer associated with a first filter that comprise a first set of filter weights and a scorer. Scores, corresponding to the input of vector sets into the network architecture, are obtained from the scorer. Comparison of respective scores to the corresponding cancer condition of the corresponding training subjects is used to adjust the filter weights thereby training the network architecture to classify cancer condition.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: October 10, 2023
    Assignee: GRAIL, LLC
    Inventors: Virgil Nicula, Anton Valouev, Darya Filippova, Matthew H. Larson, M. Cyrus Maher, Monica Portela dos Santos Pimentel, Robert Abe Paine Calef, Collin Melton
  • Publication number: 20230170048
    Abstract: Technical solutions for classifying patients with respect to multiple cancer classes are provided. The classification can be done using cell-free whole genome sequencing information from subjects. A reference set of subjects is used to train classifiers to recognize genomic markers that distinguish such cancer classes. The classifier training includes dividing the reference genome into a set of non-overlapping bins, applying a dimensionality reduction method to obtain a feature set, and using the feature set to train classifiers. For subjects with unknown cancer class, the trained classifiers provide probabilities or likelihoods that the subject has a respective cancer class for each cancer in a set of cancer classes. The present disclosure thus describes methods to improve the screening and detection of cancer class from among several cancer classes. This serves to facilitate early and appropriate treatment for subjects afflicted with cancer.
    Type: Application
    Filed: January 6, 2023
    Publication date: June 1, 2023
    Applicant: Grail, LLC
    Inventors: M. Cyrus MAHER, Anton VALOUEV, Darya FILIPPOVA, Virgil NICULA, Karthik JAGADEESH, Oliver Claude VENN, Samuel S. GROSS, John F. BEAUSANG, Robert Abe Paine CALEF
  • Publication number: 20230119938
    Abstract: Described herein are methods of preparing dual-indexed nucleic acid libraries for methylation profiling using bisulfite conversion sequencing. In various embodiments, the methods use a two-step indexing process to tag bisulfite-treated DNA with unique molecular identifiers (UMIs).
    Type: Application
    Filed: December 20, 2022
    Publication date: April 20, 2023
    Inventors: Anton Valouev, Arash Jamshidi
  • Publication number: 20230045925
    Abstract: Classification of cancer condition, in a plurality of different cancer conditions, for a species, is provided in which, for each training subject in a plurality of training subjects, there is obtained a cancer condition and a genotypic data construct including genotypic information for the respective training subject. Genotypic constructs are formatted into corresponding vector sets comprising one or more vectors. Vector sets are provided to a network architecture including a convolutional neural network path comprising at least a first convolutional layer associated with a first filter that comprise a first set of filter weights and a scorer. Scores, corresponding to the input of vector sets into the network architecture, are obtained from the scorer. Comparison of respective scores to the corresponding cancer condition of the corresponding training subjects is used to adjust the filter weights thereby training the network architecture to classify cancer condition.
    Type: Application
    Filed: September 29, 2022
    Publication date: February 16, 2023
    Applicant: GRAIL, LLC
    Inventors: Virgil Nicula, Anton Valouev, Darya Filippova, Matthew H. Larson, M. Cyrus Maher, Monica Portela dos Santos Pimentel, Robert Abe Paine Calef, Collin Melton
  • Patent number: 11581062
    Abstract: Technical solutions for classifying patients with respect to multiple cancer classes are provided. The classification can be done using cell-free whole genome sequencing information from subjects. A reference set of subjects is used to train classifiers to recognize genomic markers that distinguish such cancer classes. The classifier training includes dividing the reference genome into a set of non-overlapping bins, applying a dimensionality reduction method to obtain a feature set, and using the feature set to train classifiers. For subjects with unknown cancer class, the trained classifiers provide probabilities or likelihoods that the subject has a respective cancer class for each cancer in a set of cancer classes. The present disclosure thus describes methods to improve the screening and detection of cancer class from among several cancer classes. This serves to facilitate early and appropriate treatment for subjects afflicted with cancer.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: February 14, 2023
    Assignee: GRAIL, LLC
    Inventors: M. Cyrus Maher, Anton Valouev, Darya Filippova, Virgil Nicula, Karthik Jagadeesh, Oliver Claude Venn, Samuel S. Gross, John F. Beausang, Robert Abe Paine Calef
  • Patent number: 11566284
    Abstract: Described herein are methods of preparing dual-indexed nucleic acid libraries for methylation profiling using bisulfite conversion sequencing. In various embodiments, the methods use a two-step indexing process to tag bisulfite-treated DNA with unique molecular identifiers (UMIs).
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: January 31, 2023
    Assignee: GRAIL, LLC
    Inventors: Anton Valouev, Arash Jamshidi
  • Patent number: 11482303
    Abstract: Classification of cancer condition, in a plurality of different cancer conditions, for a species, is provided in which, for each training subject in a plurality of training subjects, there is obtained a cancer condition and a genotypic data construct including genotypic information for the respective training subject. Genotypic constructs are formatted into corresponding vector sets comprising one or more vectors. Vector sets are provided to a network architecture including a convolutional neural network path comprising at least a first convolutional layer associated with a first filter that comprise a first set of filter weights and a scorer. Scores, corresponding to the input of vector sets into the network architecture, are obtained from the scorer. Comparison of respective scores to the corresponding cancer condition of the corresponding training subjects is used to adjust the filter weights thereby training the network architecture to classify cancer condition.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: October 25, 2022
    Assignee: GRAIL, LLC
    Inventors: Virgil Nicula, Anton Valouev, Darya Filippova, Matthew H. Larson, M. Cyrus Maher, Monica Portela dos Santos Pimentel, Robert Abe Paine Calef, Collin Melton