Patents by Inventor Sergei A. Kazakov

Sergei A. Kazakov 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: 11964997
    Abstract: Disclosed herein are methods and compositions for the detection of small RNAs in a sample. The methods and compositions disclosed herein may be used for preparing sequencing libraries of the small RNAs, fragments of RNAs and DNAs.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: April 23, 2024
    Assignee: RealSeq Biosciences, Inc.
    Inventors: Sergei A. Kazakov, Sergio Barberan-Soler, Anne Dallas, Brian H. Johnston
  • Publication number: 20210253625
    Abstract: Disclosed herein are methods and compositions for the detection of small RNAs in a sample. The methods and compositions disclosed herein may be used for preparing sequencing libraries of the small RNAs, fragments of RNAs and DNAs.
    Type: Application
    Filed: March 12, 2021
    Publication date: August 19, 2021
    Inventors: Sergei A. KAZAKOV, Sergio BARBERAN-SOLER, Anne DALLAS, Brian H. JOHNSTON
  • Patent number: 11072819
    Abstract: Methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) are disclosed herein. Methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) can be used to attach adapters and/or linkers to target RNAs. Methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) can be used in reactions, including, but not limited to, ligation reactions, amplification reactions, and sequencing reactions. Additionally, methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) can be used for reducing and/or preventing the formation of secondary structures in target RNAs. These methods, compositions, and kits can also find use in a number of applications, for example, any application that benefits from stabilizing primary RNA structure, such as detecting and quantifying target RNAs in a sample, in the construction of small RNA libraries, in microarray and RT-qPCR applications, etc.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: July 27, 2021
    Assignee: REALSEQ BIOSCIENCES, INC.
    Inventor: Sergei A. Kazakov
  • Patent number: 11014957
    Abstract: Disclosed herein are methods and compositions for the detection of small RNAs in a sample. The methods and compositions disclosed herein may be used for preparing sequencing libraries of the small RNAs, fragments of RNAs and DNAs.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: May 25, 2021
    Assignee: REALSEQ BIOSCIENCES, INC.
    Inventors: Sergei A. Kazakov, Sergio Barberan-Soler, Anne Dallas, Brian H. Johnston
  • Publication number: 20180371006
    Abstract: Disclosed herein are methods and compositions for the detection of small RNAs in a sample. The methods and compositions disclosed herein may be used for preparing sequencing libraries of the small RNAs, fragments of RNAs and DNAs.
    Type: Application
    Filed: December 20, 2016
    Publication date: December 27, 2018
    Inventors: Sergei A. KAZAKOV, Sergio BARBERAN-SOLER, Anne DALLAS, Brian H. JOHNSTON
  • Publication number: 20180362968
    Abstract: Disclosed herein are methods of constructing a library of target polynucleotides. The present invention finds use in a variety of genomic research and diagnostic applications, including medical, agricultural, food and biodefense fields. Polynucleotides of interest may represent biomarkers of infection (e.g., viral and bacterial), or diseases such as cancer, genetic disorders, and metabolic disorders.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 20, 2018
    Inventors: Sergei A. KAZAKOV, Sergio BARBERAN-SOLER, Ryan HOGANS, Brian H. JOHNSTON
  • Patent number: 10041107
    Abstract: Currently, the circularization of small RNAs is broadly regarded as an obstacle in ligation-related assays and explicitly avoided while short lengths of linear RNA targets is broadly recognized as a factor limiting use of conventional primers in PCR-related assays. In contrast, the disclosed invention capitalizes on circularization of small RNA targets or their conjugates with oligonucleotide adapters. The circular RNA templates provide amplification of the target sequences via synthesis of multimer nucleic acids that can be either labeled for direct detection or subjected to PCR amplification and detection. Structure of small circular RNAs and corresponding multimeric nucleic acids provide certain advantages over current methods including flexibility in design of conventional RT and PCR primers as well as use of 5?-overlapping dimer-primers for efficient and sequence-specific amplification of short target sequences.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: August 7, 2018
    Assignee: SOMAGENICS, INC.
    Inventors: Sergei A. Kazakov, Pavan Kumar, Brian H. Johnston
  • Publication number: 20180066311
    Abstract: Methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) are disclosed herein. Methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) can be used to attach adapters and/or linkers to target RNAs. Methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) can be used in reactions, including, but not limited to, ligation reactions, amplification reactions, and sequencing reactions. Additionally, methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) can be used for reducing and/or preventing the formation of secondary structures in target RNAs. These methods, compositions, and kits can also find use in a number of applications, for example, any application that benefits from stabilizing primary RNA structure, such as detecting and quantifying target RNAs in a sample, in the construction of small RNA libraries, in microarray and RT-qPCR applications, etc.
    Type: Application
    Filed: October 5, 2017
    Publication date: March 8, 2018
    Inventor: Sergei A. KAZAKOV
  • Patent number: 9816130
    Abstract: Methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) are disclosed herein. Methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) can be used to attach adapters and/or linkers to target RNAs. Methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) can be used in reactions, including, but not limited to, ligation reactions, amplification reactions, and sequencing reactions. Additionally, methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) can be used for reducing and/or preventing the formation of secondary structures in target RNAs. These methods, compositions, and kits can also find use in a number of applications, for example, any application that benefits from stabilizing primary RNA structure, such as detecting and quantifying target RNAs in a sample, in the construction of small RNA libraries, in microarray and RT-qPCR applications, etc.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: November 14, 2017
    Assignee: SOMAGENICS, INC.
    Inventor: Sergei A. Kazakov
  • Patent number: 9809847
    Abstract: Disclosed herein are compositions and methods for the processing, amplification and detection of polynucleotides using target-specific oligonucleotides (TSOs). Hybridization of TSOs to target polynucleotides guides target processing into and purification of small target fragments that then can be amplified and detected with high sensitivity and reproducibility. The method is specifically beneficial for highly degraded polynucleotides found in biological samples.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: November 7, 2017
    Assignee: SOMAGENICS, INC.
    Inventors: Sergei A. Kazakov, Catharina Casper-Lindley, Anne Dallas, Heini Ilves, Brian H. Johnston
  • Publication number: 20170159106
    Abstract: Currently, the circularization of small RNAs is broadly regarded as an obstacle in ligation-related assays and explicitly avoided while short lengths of linear RNA targets is broadly recognized as a factor limiting use of conventional primers in PCR-related assays. In contrast, the disclosed invention capitalizes on circularization of small RNA targets or their conjugates with oligonucleotide adapters. The circular RNA templates provide amplification of the target sequences via synthesis of multimer nucleic acids that can be either labeled for direct detection or subjected to PCR amplification and detection. Structure of small circular RNAs and corresponding multimeric nucleic acids provide certain advantages over current methods including flexibility in design of conventional RT and PCR primers as well as use of 5?-overlapping dimer-primers for efficient and sequence-specific amplification of short target sequences.
    Type: Application
    Filed: October 6, 2016
    Publication date: June 8, 2017
    Inventors: Sergei A. KAZAKOV, Pavan KUMAR, Brian H. JOHNSTON
  • Publication number: 20170121762
    Abstract: Disclosed herein are compositions and methods for the processing, amplification and detection of polynucleotides using target-specific oligonucleotides (TSOs). Hybridization of TSOs to target polynucleotides guides target processing into and purification of small target fragments that then can be amplified and detected with high sensitivity and reproducibility. The method is specifically beneficial for highly degraded polynucleotides found in biological samples.
    Type: Application
    Filed: June 19, 2015
    Publication date: May 4, 2017
    Applicant: SomaGenics, Inc.
    Inventors: Sergei A. KAZAKOV, Catharina CASPER-LINDLEY, Anne DALLAS, Heini ILVES, Brian H. JOHNSTON
  • Patent number: 9493818
    Abstract: Currently, the circularization of small RNAs is broadly regarded as an obstacle in ligation-related assays and explicitly avoided while short lengths of linear RNA targets is broadly recognized as a factor limiting use of conventional primers in PCR-related assays. In contrast, the disclosed invention capitalizes on circularization of small RNA targets or their conjugates with oligonucleotide adapters. The circular RNA templates provide amplification of the target sequences via synthesis of multimer nucleic acids that can be either labeled for direct detection or subjected to PCR amplification and detection. Structure of small circular RNAs and corresponding multimeric nucleic acids provide certain advantages over current methods including flexibility in design of conventional RT and PCR primers as well as use of 5?-overlapping dimer-primers for efficient and sequence-specific amplification of short target sequences.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: November 15, 2016
    Assignee: SOMAGENICS, INC.
    Inventors: Sergei A. Kazakov, Pavan Kumar, Brian H. Johnston
  • Patent number: 9416402
    Abstract: Currently, the circularization of small RNAs is broadly regarded as an obstacle in ligation-related assays and explicitly avoided while short lengths of linear RNA targets is broadly recognized as a factor limiting use of conventional primers in PCR-related assays. In contrast, the disclosed invention capitalizes on circularization of small RNA targets or their conjugates with oligonucleotide adapters. The circular RNA templates provide amplification of the target sequences via synthesis of multimer nucleic acids that can be either labeled for direct detection or subjected to PCR amplification and detection. Structure of small circular RNAs and corresponding multimeric nucleic acids provide certain advantages over current methods including flexibility in design of conventional RT and PCR primers as well as use of 5?-overlapping dimer-primers for efficient and sequence-specific amplification of short target sequences.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: August 16, 2016
    Assignee: SOMAGENICS, INC.
    Inventors: Sergei A. Kazakov, Pavan Kumar, Brian H. Johnston
  • Publication number: 20160215328
    Abstract: Methods, systems and compositions are provided for analyzing one or more nucleic acid molecules. The methods, systems and compositions may comprise one or more target specific-oligonucleotide probes (TSPs). The TSPs may hybridize to nucleic acid molecules that are less than or equal to 200 nucleotides in length. The nucleic acid molecules may be small RNA molecules (e.g., miRNA, ncRNA, siRNA, shRNA). The methods, systems and compositions fmd use in a number of applications, for example, isolation of nucleic acid molecules, analysis of low abundance nucleic acid molecules, and/or enrichment of nucleic acid molecules.
    Type: Application
    Filed: February 27, 2014
    Publication date: July 28, 2016
    Inventors: Sergei A. KAZAKOV, Anne DALLAS, Heini ILVES, Sumedha JAYASENA, Brian H. JOHNSTON
  • Publication number: 20160115523
    Abstract: Currently, the circularization of small RNAs is broadly regarded as an obstacle in ligation-related assays and explicitly avoided while short lengths of linear RNA targets is broadly recognized as a factor limiting use of conventional primers in PCR-related assays. In contrast, the disclosed invention capitalizes on circularization of small RNA targets or their conjugates with oligonucleotide adapters. The circular RNA templates provide amplification of the target sequences via synthesis of multimer nucleic acids that can be either labeled for direct detection or subjected to PCR amplification and detection. Structure of small circular RNAs and corresponding multimeric nucleic acids provide certain advantages over current methods including flexibility in design of conventional RT and PCR primers as well as use of 5?-overlapping dimer-primers for efficient and sequence-specific amplification of short target sequences.
    Type: Application
    Filed: August 25, 2015
    Publication date: April 28, 2016
    Inventors: Sergei A. KAZAKOV, Pavan KUMAR, Brian H. JOHNSTON
  • Publication number: 20150211046
    Abstract: Currently, the circularization of small RNAs is broadly regarded as an obstacle in ligation-related assays and explicitly avoided while short lengths of linear RNA targets is broadly recognized as a factor limiting use of conventional primers in PCR-related assays. In contrast, the disclosed invention capitalizes on circularization of small RNA targets or their conjugates with oligonucleotide adapters. The circular RNA templates provide amplification of the target sequences via synthesis of multimer nucleic acids that can be either labeled for direct detection or subjected to PCR amplification and detection. Structure of small circular RNAs and corresponding multimeric nucleic acids provide certain advantages over current methods including flexibility in design of conventional RT and PCR primers as well as use of 5?-overlapping dimer-primers for efficient and sequence-specific amplification of short target sequences.
    Type: Application
    Filed: January 20, 2015
    Publication date: July 30, 2015
    Inventors: Sergei A. KAZAKOV, Pavan KUMAR, Brian H. JOHNSTON
  • Patent number: 8962253
    Abstract: Currently, the circularization of small RNAs is broadly regarded as an obstacle in ligation-related assays and explicitly avoided while short lengths of linear RNA targets is broadly recognized as a factor limiting use of conventional primers in PCR-related assays. In contrast, the disclosed invention capitalizes on circularization of small RNA targets or their conjugates with oligonucleotide adapters. The circular RNA templates provide amplification of the target sequences via synthesis of multimer nucleic acids that can be either labeled for direct detection or subjected to PCR amplification and detection. Structure of small circular RNAs and corresponding multimeric nucleic acids provide certain advantages over current methods including flexibility in design of conventional RT and PCR primers as well as use of 5?-overlapping dimer-primers for efficient and sequence-specific amplification of short target sequences.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: February 24, 2015
    Assignee: Somagenics Inc.
    Inventors: Sergei A. Kazakov, Pavan Kumar, Brian H. Johnston
  • Publication number: 20150051099
    Abstract: Methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) are disclosed herein. Methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) can be used to attach adapters and/or linkers to target RNAs. Methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) can be used in reactions, including, but not limited to, ligation reactions, amplification reactions, and sequencing reactions. Additionally, methods, compositions, and kits comprising target-specific oligonucleotides (TSOs) can be used for reducing and/or preventing the formation of secondary structures in target RNAs. These methods, compositions, and kits can also find use in a number of applications, for example, any application that benefits from stabilizing primary RNA structure, such as detecting and quantifying target RNAs in a sample, in the construction of small RNA libraries, in microarray and RT-qPCR applications, etc.
    Type: Application
    Filed: December 21, 2012
    Publication date: February 19, 2015
    Applicant: SomaGenics, Inc.
    Inventor: Sergei A. Kazakov
  • Patent number: 8779115
    Abstract: Methods, compositions, and kits that include small hairpin RNA (shRNA) useful for inhibition of gene expression, such as viral-mediated gene expression, are described.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: July 15, 2014
    Assignee: Somagenics Inc.
    Inventors: Qing Ge, Brian H. Johnston, Sergei A Kazakov, Heini Ilves, Anne Dallas