Patents by Inventor Kandaswamy Vijayan
Kandaswamy Vijayan 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).
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Patent number: 12180545Abstract: A method of determining a nucleic acid sequence that includes steps of: (a) contacting a primed template nucleic acid with a series of mixtures for forming ternary complexes, wherein each of the mixtures includes a polymerase and nucleotide cognates for at least two different base types suspected of being present at the next template position of the template nucleic acid; (b) monitoring the next template position for ternary complexes formed by the series of mixtures, wherein a signal state indicates presence or absence of ternary complex formed at the next template position by each individual mixture, thereby determining a series of signal states that encodes a base call for the next template position; and (c) decoding the series of signal states to distinguish a correct base call for the next template position from an error in the base call.Type: GrantFiled: July 29, 2022Date of Patent: December 31, 2024Assignee: Pacific Biosciences of California, Inc.Inventors: Sean Stromberg, John Vieceli, Kandaswamy Vijayan, Arnold Oliphant
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Publication number: 20240361310Abstract: Disclosed are capture beads that are suitable for use in an assay device which is configured to correlate the capture bead to a specific examination area in the device as well as correlating any captured nucleic acid or other cellular components generated during the assay to that bead.Type: ApplicationFiled: June 5, 2024Publication date: October 31, 2024Applicant: Zafrens Inc.Inventors: Kandaswamy Vijayan, Ravi Ramenani, Chulmin Choi, Aurelien Laguerre, Gopichandran Ravichandran, Nicholas Sam-Soon, Yi Zhang, David Milliken, Kenneth Chng, Maina Ndungu
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Publication number: 20240327824Abstract: Disclosed are uniquely labeled perturbation beads used alone or in combination with a capture bead. These perturbation beads are useful in drug discovery especially in assays conducted in a mapped assay device. Such a uniquely labeled perturbation bead, when used in an examination area of a mapped assay device, allows for correlating the sequence of nucleic acids and other components from a lysed cell to the specific examination area where the nucleic acid was retrieved.Type: ApplicationFiled: June 5, 2024Publication date: October 3, 2024Applicant: Zafrens Inc.Inventors: Kandaswamy Vijayan, Ravi Ramenani, Chulmin Choi, Aurelien Laguerre, Gopichandran Ravichandran, Nicholas Sam-Soon, Yi Zhang, David Milliken, Kenneth Chng, Maina Ndungu
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Publication number: 20240301490Abstract: A method of cellular analysis at high throughput is provided. More specifically, the invention relates to capturing single cells, culturing single cells to generate clonal copies of single cells, perturbing the single cells or the clonal copies derived from the single cells, performing experiments on single cells or clonal copies of single cells, imaging cells, capturing genomic content and other material from cells and being able to relate the captured genomic information to the functional and imaging analysis performed on the same cell.Type: ApplicationFiled: May 9, 2023Publication date: September 12, 2024Applicant: Zafrens, Inc.Inventor: Kandaswamy Vijayan
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Patent number: 12030057Abstract: This application provides a bead with a covalently attached chemical compound and a covalently attached DNA barcode and methods for using such beads. The bead has many substantially identical copies of the chemical compound and many substantially identical copies of the DNA barcode. The compound consists of one or more chemical monomers, where the DNA barcode takes the form of barcode modules, where each module corresponds to and allows identification of a corresponding chemical monomer. The nucleic acid barcode can have a concatenated structure or an orthogonal structure. Provided are method for sequencing the bead-bound nucleic acid barcode, for cleaving the compound from the bead, and for assessing biological activity of the released compound.Type: GrantFiled: January 6, 2023Date of Patent: July 9, 2024Assignee: Plexium, Inc.Inventors: Kandaswamy Vijayan, Andrew Boyd MacConnell, Joseph Franklin Rokicki
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Patent number: 11998919Abstract: Disclosed is an assay device comprising a high density of wells aligned thereon.Type: GrantFiled: March 18, 2022Date of Patent: June 4, 2024Assignee: Plexium, Inc.Inventors: Yi Zhang, Jesse Lu, Alex Price, Pengyu Yang, Kandaswamy Vijayan
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Patent number: 11976323Abstract: Provided are sequencing-by-binding methods of detecting cognate nucleotides using a crippled DNA polymerizing enzyme that possesses the ability to bind the next correct nucleotide downstream of a primer in a template-dependent fashion, but does not possess the activity needed to promote phosphodiester bond formation. Use of the crippled DNA polymerase permits interrogation of one nucleotide at a time, without incorporation of any nucleotide. Labeled nucleotides, such as fluorescently labeled nucleotides, can be used in conjunction with the crippled DNA polymerase to establish cognate nucleotide identity in a rapid manner.Type: GrantFiled: January 7, 2020Date of Patent: May 7, 2024Assignee: PACIFIC BIOSCIENCES OF CALIFORNIA, INC.Inventors: Kandaswamy Vijayan, Pinar Iyidogan
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Publication number: 20240117418Abstract: A microarray is designed to capture one or more molecules of interest at each of a plurality of sites on a substrate. The sites comprise base pads, such as polymer base pads, that promote the attachment of the molecules at the sites. The microarray may be made by one or more patterning techniques to create a layout of base pads in a desired pattern. Further, the microarrays may include features to encourage clonality at the sites.Type: ApplicationFiled: November 13, 2023Publication date: April 11, 2024Inventors: M. Shane Bowen, Kevin L. Gunderson, Shengrong Lin, Maria Candelaria Rogert Bacigalupo, Kandaswamy Vijayan, Yir-Shyuan Wu, Bala Murali Venkatesan, James Tsay, John M. Beierle, Lorenzo Berti, Sang Ryul Park
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Publication number: 20240035082Abstract: The present disclosure provides compositions, methods and systems for sequencing a template nucleic acid using a polymerase based, nucleic acid binding reaction involving examination of the interaction between a polymerase and template nucleic acid in the presence of one or more unlabeled nucleotides. The methods rely, in part, on identifying a base of a template nucleic acid during nucleic acid synthesis by controlling the sequencing reaction conditions. Template nucleic acid bases may be identified during an examination step followed by an optional incorporation step.Type: ApplicationFiled: October 11, 2022Publication date: February 1, 2024Applicant: Pacific Biosciences of California, Inc.Inventors: Kandaswamy VIJAYAN, Eugene TU, Mark A. BERNARD
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Patent number: 11834704Abstract: A method includes forming a patterned substrate including a plurality of base pads, using a nano-imprint lithography process. A capture substance is attached to each of the plurality of base pads, optionally through a linker, the capture substance being adapted to promote capture of a target molecule.Type: GrantFiled: December 7, 2020Date of Patent: December 5, 2023Assignee: Illumina, Inc.Inventors: M. Shane Bowen, Kevin L. Gunderson, Shengrong Lin, Maria Candelaria Rogert Bacigalupo, Kandaswamy Vijayan, Yir-Shyuan Wu, Bala Murali Venkatesan, James Tsay, John M. Beierle, Lorenzo Berti, Sang Ryul Park
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Publication number: 20230234065Abstract: This application provides a bead with a covalently attached chemical compound and a covalently attached DNA barcode and methods for using such beads. The bead has many substantially identical copies of the chemical compound and many substantially identical copies of the DNA barcode. The compound consists of one or more chemical monomers, where the DNA barcode takes the form of barcode modules, where each module corresponds to and allows identification of a corresponding chemical monomer. The nucleic acid barcode can have a concatenated structure or an orthogonal structure. Provided are method for sequencing the bead-bound nucleic acid barcode, for cleaving the compound from the bead, and for assessing biological activity of the released compound.Type: ApplicationFiled: January 6, 2023Publication date: July 27, 2023Inventors: Kandaswamy Vijayan, Andrew Boyd MacConnell, Joseph Franklin Rokicki
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Publication number: 20230151420Abstract: A method of determining a nucleic acid sequence that includes steps of: (a) contacting a primed template nucleic acid with a series of mixtures for forming ternary complexes, wherein each of the mixtures includes a polymerase and nucleotide cognates for at least two different base types suspected of being present at the next template position of the template nucleic acid; (b) monitoring the next template position for ternary complexes formed by the series of mixtures, wherein a signal state indicates presence or absence of ternary complex formed at the next template position by each individual mixture, thereby determining a series of signal states that encodes a base call for the next template position; and (c) decoding the series of signal states to distinguish a correct base call for the next template position from an error in the base call.Type: ApplicationFiled: July 29, 2022Publication date: May 18, 2023Inventors: Sean STROMBERG, John VIECELI, Kandaswamy VIJAYAN, Arnold OLIPHANT
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Publication number: 20230065224Abstract: This application provides a bead with a covalently attached chemical compound and a covalently attached DNA barcode and methods for using such beads. The bead has many substantially identical copies of the chemical compound and many substantially identical copies of the DNA barcode. The compound consists of one or more chemical monomers, where the DNA barcode takes the form of barcode modules, where each module corresponds to and allows identification of a corresponding chemical monomer. The nucleic acid barcode can have a concatenated structure or an orthogonal structure. Provided are a method for sequencing the bead-bound nucleic acid barcode, for cleaving the compound from the bead, and for assessing biological activity of the released compound.Type: ApplicationFiled: January 28, 2021Publication date: March 2, 2023Inventors: Kandaswamy VIJAYAN, Kapil MAHAKALKAR, Yi ZHANG, Andrew Boyd MACCONNELL, Joseph Franklin ROKICKI, Michael VAN NGUYEN
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Patent number: 11577249Abstract: This application provides a bead with a covalently attached chemical compound and a covalently attached DNA barcode and methods for using such beads. The bead has many substantially identical copies of the chemical compound and many substantially identical copies of the DNA barcode. The compound consists of one or more chemical monomers, where the DNA barcode takes the form of barcode modules, where each module corresponds to and allows identification of a corresponding chemical monomer. The nucleic acid barcode can have a concatenated structure or an orthogonal structure. Provided are method for sequencing the bead-bound nucleic acid barcode, for cleaving the compound from the bead, and for assessing biological activity of the released compound.Type: GrantFiled: April 21, 2021Date of Patent: February 14, 2023Assignee: Plexium, Inc.Inventors: Kandaswamy Vijayan, Andrew Boyd MacConnell, Joseph Franklin Rokicki
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Patent number: 11499185Abstract: The present disclosure provides compositions, methods and systems for sequencing a template nucleic acid using a polymerase based, nucleic acid binding reaction involving examination of the interaction between a polymerase and template nucleic acid in the presence of one or more unlabeled nucleotides. The methods rely, in part, on identifying a base of a template nucleic acid during nucleic acid synthesis by controlling the sequencing reaction conditions. Template nucleic acid bases may be identified during an examination step followed by an optional incorporation step.Type: GrantFiled: July 26, 2018Date of Patent: November 15, 2022Assignee: PACIFIC BIOSCIENCES OF CALIFORNIA, INC.Inventors: Kandaswamy Vijayan, Eugene Tu, Mark A. Bernard
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Publication number: 20220298553Abstract: Method of identifying a cognate nucleotide (i.e., the “next correct nucleotide”) for a primed template nucleic acid molecule. In some embodiments, an ordered or random array of primed target nucleic acids characterized by different cognate nucleotides can be evaluated using a single imaging step to identify different cognate nucleotides for a collection of different primed template nucleic acid molecules. An optional incorporation step can follow the identifying step. A polymerase different from the ones used in the binding and examination steps can be used to incorporate a nucleotide, such as a reversible terminator nucleotide, preliminary to identification of the next cognate nucleotide.Type: ApplicationFiled: December 29, 2021Publication date: September 22, 2022Applicant: Omniome, Inc.Inventors: Corey M. DAMBACHER, Devon CAYER, Richard LECOULTRE, Joseph ROKICKI, Kerry WILSON, Eugene TU, Kandaswamy VIJAYAN
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Patent number: 11447823Abstract: A method of determining a nucleic acid sequence that includes steps of: (a) contacting a primed template nucleic acid with a series of mixtures for forming ternary complexes, wherein each of the mixtures includes a polymerase and nucleotide cognates for at least two different base types suspected of being present at the next template position of the template nucleic acid; (b) monitoring the next template position for ternary complexes formed by the series of mixtures, wherein a signal state indicates presence or absence of ternary complex formed at the next template position by each individual mixture, thereby determining a series of signal states that encodes a base call for the next template position; and (c) decoding the series of signal states to distinguish a correct base call for the next template position from an error in the base call.Type: GrantFiled: April 9, 2020Date of Patent: September 20, 2022Assignee: Pacific Biosciences of California, Inc.Inventors: Sean Stromberg, John Vieceli, Kandaswamy Vijayan, Arnold Oliphant
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Publication number: 20220243261Abstract: A method including (a) providing an amplification reagent including an array of sites, and a solution having different target nucleic acids; and (b) reacting the amplification reagent to produce amplification sites each having a clonal population of amplicons from a target nucleic acid from the solution. The reacting can include simultaneously transporting the nucleic acids to the sites at an average transport rate, and amplifying the nucleic acids that transport to the sites at an average amplification rate, wherein the average amplification rate exceeds the average transport rate. The reacting can include producing a first amplicon from a nucleic acid that transports to each of the sites, and producing subsequent amplicons from the nucleic acid or from the first amplicon, wherein the average rate at which the subsequent amplicons are generated exceeds the average rate at which the first amplicon is generated.Type: ApplicationFiled: January 13, 2022Publication date: August 4, 2022Applicant: Illumina, Inc.Inventors: Min-Jui Richard Shen, Jonathan Mark Boutell, Kathryn M. Stephens, Mostafa Ronaghi, Kevin L. Gunderson, Bala Murali Venkatesan, M. Shane Bowen, Kandaswamy Vijayan
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Publication number: 20220203357Abstract: Disclosed is an assay device comprising a high density of wells aligned thereon.Type: ApplicationFiled: March 18, 2022Publication date: June 30, 2022Inventors: Yi Zhang, Jesse Lu, Alex Price, Pengyu Yang, Kandaswamy Vijayan
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Publication number: 20220162690Abstract: Provided are compositions, methods and systems for determining the sequence of a template nucleic acid using a polymerase-based, sequencing-by-binding procedure. An examination step involves monitoring the interaction between a polymerase and template nucleic acid in the presence of one or more nucleotides. Identity of the next correct nucleotide in the sequence is determined without incorporation of any nucleotide into the structure of the primer by formation of a phosphodiester bond. An optional incorporation step can be used after the examination step to extend the primer by one or more nucleotides, thereby incrementing the template nucleotides that can be examined in a subsequent examination step. The sequencing-by-binding procedure does not require the use of labeled nucleotides or polymerases, but optionally can employ these reagents.Type: ApplicationFiled: October 6, 2021Publication date: May 26, 2022Inventors: Kandaswamy VIJAYAN, Corey M. DAMBACHER, Eugene TU, Mark A. BERNARD, Joseph ROKICKI, Kerry WILSON