Patents Assigned to KAPA BIOSYSTEMS
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Patent number: 12264315Abstract: The present disclosure provides a method for enrichment of at least one target nucleic acid in a library of nucleic acids. A first oligonucleotide is hybridized to a target nucleic acid in library of nucleic acids having first and second adapters. The hybridized first oligonucleotide is extended with a first polymerase, thereby producing a first primer extension complex including the target nucleic acid and the extended first oligonucleotide. The first primer extension complex is captured, enriched relative to the library of nucleic acids, and a second oligonucleotide is hybridized to the target nucleic acid. The hybridized second oligonucleotide is extended with a second polymerase, thereby producing a second primer extension complex including the target nucleic acid and the extended second oligonucleotide, and further liberating the extended first oligonucleotide from the first primer extension complex.Type: GrantFiled: August 15, 2019Date of Patent: April 1, 2025Assignees: Roche Sequencing Solutions, Inc., Kapa Biosystems, Inc.Inventors: Daniel Burgess, Brian Christopher Godwin, Alexander Lovejoy, Bronwen Miller, Jo-Anne Elizabeth Penkler, Joseph Platzer, Martin Ranik
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Patent number: 12110534Abstract: The invention is a novel method of sequencing nucleic acids involving making and sequencing a library of single stranded circular target nucleic acids.Type: GrantFiled: July 31, 2020Date of Patent: October 8, 2024Assignees: Roche Sequencing Solutions, Inc., Kapa Biosystems, Inc.Inventors: Daleen Badenhorst, Michael S. Berry, Richard Dannebaum, Ashley Hayes, Severine Margeridon, Martin Ranik, Etienne Slabbert
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Patent number: 11976275Abstract: The invention is a novel method of sequencing nucleic acids involving making and sequencing a library of double stranded target nucleic acids containing a linear partially single-stranded adaptor.Type: GrantFiled: August 26, 2020Date of Patent: May 7, 2024Assignees: KAPA BIOSYSTEMS, INC., ROCHE SEQUENCING SOLUTIONS, INC.Inventors: Aruna Arcot, Daleen Badenhorst, Jenny A. Johnson, Martin Ranik, Persis Wadia
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Patent number: 11932847Abstract: Disclosed is a method of fragmenting DNA comprising contacting a sample of target DNA with (a) a composition comprising an active transpososome, and (b) a composition comprising an inactive transpososome, under conditions suitable for transpososome activity, wherein a ratio of an amount of the inactive transpososome in the composition of (b) to an amount of the active transpososome in the composition of (a) determines the mean fragment size and a level of insertion bias.Type: GrantFiled: April 19, 2017Date of Patent: March 19, 2024Assignee: KAPA BIOSYSTEMS, INC.Inventors: Martin Ranik, Eric Van der Walt, William Bourn, Jennifer Hsieh, Abre De Beer, Gerrida Uys, Paul McEwan
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Patent number: 11898204Abstract: The invention is a novel method of separately sequencing each strand of a nucleic acid involving the use of an adaptor comprising a strand cleavage site or a strand synthesis termination site. The adaptor may also be self-priming at the strand cleavage site.Type: GrantFiled: February 28, 2019Date of Patent: February 13, 2024Assignees: Roche Sequencing Solutions, Inc., KAPA Biosystems, Inc.Inventors: Aruna Arcot, Daleen Badenhorst, Rui Chen, Toummy Guettouche, Ashley Hayes, Jenny A. Johnson, Severine Margeridon, Martin Ranik, Persis Wadia, Alexandra Hui Wang
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Patent number: 11773388Abstract: The present disclosure provides a method for enrichment of at least one target nucleic acid in a library of nucleic acids. A first oligonucleotide is hybridized to a target nucleic acid in library of nucleic acids having first and second adapters. The hybridized first oligonucleotide is extended with a first polymerase, thereby producing a first primer extension complex including the target nucleic acid and the extended first oligonucleotide. The first primer extension complex is captured, enriched relative to the library of nucleic acids, and a second oligonucleotide is hybridized to the target nucleic acid. The hybridized second oligonucleotide is extended with a second polymerase, thereby producing a second primer extension complex including the target nucleic acid and the extended second oligonucleotide, and further liberating the extended first oligonucleotide from the first primer extension complex.Type: GrantFiled: June 22, 2020Date of Patent: October 3, 2023Assignees: Roche Sequencing Solutions, Inc., Kapa Biosystems, Inc.Inventors: Daniel Burgess, Brian Christopher Godwin, Alexander Lovejoy, Bronwen Miller, Jo-Anne Elizabeth Penkler, Joseph Platzer
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Patent number: 11746339Abstract: The present invention provides improved DNA polymerases that may be better suited for applications in recombinant DNA technologies, in particular technologies involving plant-derived samples. Among other things, the present invention provides modified DNA polymerases derived from directed evolution experiments designed to select mutations that confer advantageous phenotypes under conditions used in industrial or research applications.Type: GrantFiled: March 11, 2021Date of Patent: September 5, 2023Assignee: Kapa Biosystems, Inc.Inventors: Wolfgang Schafer, Paul J. McEwan, Eric van der Walt, John Foskett, William Bourn
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Patent number: 11603547Abstract: The present invention provides improved DNA polymerases, in particular, type A DNA polymerases, that may be better suited for applications in recombinant DNA technologies. Among other things, the present invention provides modified DNA polymerases derived from directed evolution experiments designed to select mutations that confer advantageous phenotypes under conditions used in industrial or research applications.Type: GrantFiled: February 22, 2021Date of Patent: March 14, 2023Assignee: Kapa Biosystems, Inc.Inventors: William Bourn, Maryke Appel, Gavin Rush, John Foskett, Paul J. McEwan
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Patent number: 11427846Abstract: The disclosure provides a composition comprising a double-stranded deoxyribonucleic acid (dsDNA) sequence comprising from 5? to 3?, a sequence comprising a first adaptor sequence, a template sequence, and a second adaptor sequence, wherein the second adaptor sequence comprises a hybridization site for a template switching oligonucleotide (TSO). The disclosure provides methods for making the compositions of the disclosure using a template switching mechanism to add non-templated basepairs to the ends of a DNA molecule, hybridize a TSO to the non-templated basepairs, and then extend the sequence complementary to the TSO to add an adaptor.Type: GrantFiled: June 4, 2020Date of Patent: August 30, 2022Assignee: Kapa Biosystems, Inc.Inventors: Jennifer Hsieh, Paul McEwan, Martin Ranik, Marliz Strydom, Eric van der Walt, Ross Wadsworth
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Patent number: 11345955Abstract: The invention is a novel method of making and using a library such as a sequencing library of single stranded circular nucleic acid templates via splint ligation. In particular, disclosed are methods of making circular target nucleic acid molecules and libraries of such molecules for downstream analysis such as nucleic acid sequencing. The method comprises the steps of adding universal sequences to nucleic acid molecules, rendering single-stranded these nucleic acid molecules with universal sequences on their ends by contacting with a probe complementary to at least a portion of the universal sequences, and allowing the hybridized probe to enable circularization and formation of single-stranded circular (sscDNA) molecules.Type: GrantFiled: March 9, 2020Date of Patent: May 31, 2022Assignees: ROCHE SEQUENCING SOLUTIONS, INC., KAPA BIOSYSTEMS, INC.Inventors: Daleen Badenhorst, Richard Dannebaum, Ashley Hayes, Monica Herrera, Severine Margeridon, Martin Ranik
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Patent number: 11001834Abstract: The present invention provides synthetic nucleic acid molecule tags that can be added into samples for identification and tracking. Among other things, the present invention provides synthetic, high-molecular weight concatemers, which can be combined with samples to yield hundreds of millions of unique identifiers. Examples applications for which the synthetic nucleic acid molecule tags can be used, include industrial, research and clinical applications.Type: GrantFiled: September 28, 2016Date of Patent: May 11, 2021Assignee: KAPA BIOSYSTEMS, INC.Inventors: Paul McEwan, Martin Ranik, Eric van der Walt
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Patent number: 10975361Abstract: The present invention provides improved DNA polymerases that may be better suited for applications in recombinant DNA technologies, in particular technologies involving plant-derived samples. Among other things, the present invention provides modified DNA polymerases derived from directed evolution experiments designed to select mutations that confer advantageous phenotypes under conditions used in industrial or research applications.Type: GrantFiled: April 15, 2016Date of Patent: April 13, 2021Assignee: Kapa Biosystems, Inc.Inventors: Wolfgang Schafer, Paul McEwan, Eric Van Der Walt, John Foskett, William Bourn
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Patent number: 10961555Abstract: The present invention provides improved DNA polymerases, in particular, type A DNA polymerases, that may be better suited for applications in recombinant DNA technologies. Among other things, the present invention provides modified DNA polymerases derived from directed evolution experiments designed to select mutations that confer advantageous phenotypes under conditions used in industrial or research applications.Type: GrantFiled: May 3, 2018Date of Patent: March 30, 2021Assignee: Kapa Biosystems, Inc.Inventors: William Bourn, Maryke Appel, Gavin Rush, John Foskett, Paul J. McEwan
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Patent number: 10907204Abstract: Improved methods and compositions are provided herein for primer extension target enrichment of target polynucleotides.Type: GrantFiled: July 12, 2017Date of Patent: February 2, 2021Assignees: Roche Sequencing Solutions, Inc., Kapa Biosystems, Inc.Inventors: Brian C. Godwin, Joseph Platzer, Janine Mok, Jo-Anne Penkler, Bronwen Miller
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Publication number: 20200347441Abstract: The disclosure provides compositions and methods for high-throughput screening a plurality of transposases to identify rare mutations that affect desired features of the transposase. Compositions of the disclosures are provided that facilitate the high-throughput screening methods of the disclosure.Type: ApplicationFiled: August 30, 2018Publication date: November 5, 2020Applicant: Kapa Biosystems, Inc.Inventors: Raeeza Allie, Michael Stuart Berry, William Bourn, Bjarne Faurholm, Suzanne Margaret Huddy, Martin Ranik, Du Toit Schabort
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Patent number: 10457968Abstract: The present invention provides improved DNA polymerases, in particular, type A DNA polymerases, that may be better suited for applications in recombinant DNA technologies. Among other things, the present invention provides modified DNA polymerases derived from directed evolution experiments designed to select mutations that confer advantageous phenotypes under conditions used in industrial or research applications.Type: GrantFiled: November 3, 2009Date of Patent: October 29, 2019Assignee: Kapa Biosystems, Inc.Inventors: William Bourn, Maryke Appel, Gavin Rush, John Foskett, Paul McEwan
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Patent number: 9388396Abstract: The present invention provides, among other things, chimeric DNA polymerases containing heterologous domains having sequences derived from at least two DNA polymerases that have at least one distinct functional characteristics (e.g., elongation rate, processivity, error rate or fidelity, salt tolerance or resistance) and methods of making and using the same. In some embodiments, the present invention can combine desired functional characteristics (e.g., high processivity; high elongation rate; thermostability; resistance to salt, PCR additives (e.g., PCR enhancers) and other impurities; and high fidelity) of different DNA polymerases in a chimeric polymerase.Type: GrantFiled: May 5, 2014Date of Patent: July 12, 2016Assignee: Kapa Biosystems, Inc.Inventors: Bjarne Faurholm, Paul McEwan, William Bourn, Gavin Rush
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Patent number: 9315787Abstract: The present invention provides improved DNA polymerases that may be better suited for applications in recombinant DNA technologies, in particular technologies involving plant-derived samples. Among other things, the present invention provides modified DNA polymerases derived from directed evolution experiments designed to select mutations that confer advantageous phenotypes under conditions used in industrial or research applications.Type: GrantFiled: January 13, 2012Date of Patent: April 19, 2016Assignee: KAPA BIOSYSTEMS, INC.Inventors: Wolfgang Schafer, Paul McEwan, Eric Van Der Walt, John Foskett, William Bourn
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Patent number: 9023633Abstract: The present invention provides, among other things, chimeric DNA polymerases containing heterologous domains having sequences derived from at least two DNA polymerases that have at least one distinct functional characteristics (e.g., elongation rate, processivity, error rate or fidelity, salt tolerance or resistance) and methods of making and using the same. In some embodiments, the present invention can combine desired functional characteristics (e.g., high processivity; high elongation rate; thermostability; resistance to salt, PCR additives (e.g., PCR enhancers) and other impurities; and high fidelity) of different DNA polymerases in a chimeric polymerase.Type: GrantFiled: November 3, 2009Date of Patent: May 5, 2015Assignee: Kapa BiosystemsInventors: Bjarne Faurholm, Paul McEwan, William Bourn, Gavin Rush
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Publication number: 20140363848Abstract: The present invention provides, among other things, chimeric DNA polymerases containing heterologous domains having sequences derived from at least two DNA polymerases that have at least one distinct functional characteristics (e.g., elongation rate, processivity, error rate or fidelity, salt tolerance or resistance) and methods of making and using the same. In some embodiments, the present invention can combine desired functional characteristics (e.g., high processivity; high elongation rate; thermostability; resistance to salt, PCR additives (e.g., PCR enhancers) and other impurities; and high fidelity) of different DNA polymerases in a chimeric polymerase.Type: ApplicationFiled: May 5, 2014Publication date: December 11, 2014Applicant: KAPA BIOSYSTEMS, INC.Inventors: Bjarne FAURHOLM, Paul MCEWAN, William BOURN, Gavin RUSH