Patents by Inventor John P. Burke

John P. Burke 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: 11335437
    Abstract: Disclosed are methods and tools for rapidly aligning reads to a reference sequence. These methods and tools employ Bloom filters or similar set membership testers to perform the alignment. The reads may be short sequences of nucleic acids or other biological molecules and the reference sequences may be sequences of genomes, chromosomes, etc. The Bloom filters include a collection of hash functions, a bit array, and associated logic for applying reads to the filter. Each filter, and there may be multiple of these used in a particular application, is used to determine whether an applied read is present in a reference sequence. Each Bloom filter is associated with a single reference sequence such as the sequence of a particular chromosome. In one example, chromosomal abundance is determined by aligning reads from a sequencer to multiple chromosomes, each having an associated Bloom filter or other set membership tester.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: May 17, 2022
    Assignee: Verinata Health, Inc.
    Inventors: Erich D. Blume, John P. Burke, Hui Huang
  • Publication number: 20200251180
    Abstract: Methods of reliably estimating genomic fraction (e.g., fetal fraction) from polymorphisms such as small base variations or insertions-deletions are disclosed. Sequenced data from a multigenomic source is used to determine allele counts for one or more of the polymorphisms. For one or more of the polymorphisms, zygosity is assigned, and genomic fraction is determined from the zygosity and allele counts. Certain embodiments employ SNPs as the relevant polymorphism. The disclosed methods can be applied as part of an intentional, pre-designed re-sequencing study targeted against known polymorphisms or can be used in a retrospective analysis of variations found by coincidence in overlapping sequences generated from maternal plasma (or any other setting where a mixture of DNA from several people are present).
    Type: Application
    Filed: April 20, 2020
    Publication date: August 6, 2020
    Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
  • Patent number: 10658070
    Abstract: Methods of reliably estimating genomic fraction (e.g., fetal fraction) from polymorphisms such as small base variations or insertions-deletions are disclosed. Sequenced data from a multigenomic source is used to determine allele counts for one or more of the polymorphisms. For one or more of the polymorphisms, zygosity is assigned, and genomic fraction is determined from the zygosity and allele counts. Certain embodiments employ SNPs as the relevant polymorphism. The disclosed methods can be applied as part of an intentional, pre-designed re-sequencing study targeted against known polymorphisms or can be used in a retrospective analysis of variations found by coincidence in overlapping sequences generated from maternal plasma (or any other setting where a mixture of DNA from several people are present).
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: May 19, 2020
    Assignee: Verinata Health, Inc.
    Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
  • Publication number: 20180100248
    Abstract: Disclosed are methods and tools for rapidly aligning reads to a reference sequence. These methods and tools employ Bloom filters or similar set membership testers to perform the alignment. The reads may be short sequences of nucleic acids or other biological molecules and the reference sequences may be sequences of genomes, chromosomes, etc. The Bloom filters include a collection of hash functions, a bit array, and associated logic for applying reads to the filter. Each filter, and there may be multiple of these used in a particular application, is used to determine whether an applied read is present in a reference sequence. Each Bloom filter is associated with a single reference sequence such as the sequence of a particular chromosome. In one example, chromosomal abundance is determined by aligning reads from a sequencer to multiple chromosomes, each having an associated Bloom filter or other set membership tester.
    Type: Application
    Filed: November 10, 2017
    Publication date: April 12, 2018
    Inventors: Erich D. Blume, John P. Burke, Hui Huang
  • Patent number: 9845552
    Abstract: Disclosed are methods and tools for rapidly aligning reads to a reference sequence. These methods and tools employ Bloom filters or similar set membership testers to perform the alignment. The reads may be short sequences of nucleic acids or other biological molecules and the reference sequences may be sequences of genomes, chromosomes, etc. The Bloom filters include a collection of hash functions, a bit array, and associated logic for applying reads to the filter. Each filter, and there may be multiple of these used in a particular application, is used to determine whether an applied read is present in a reference sequence. Each Bloom filter is associated with a single reference sequence such as the sequence of a particular chromosome. In one example, chromosomal abundance is determined by aligning reads from a sequencer to multiple chromosomes, each having an associated Bloom filter or other set membership tester.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: December 19, 2017
    Assignee: Verinata Health, Inc.
    Inventors: Erich D. Blume, John P. Burke, Hui Huang
  • Publication number: 20170039318
    Abstract: Methods of reliably estimating genomic fraction (e.g., fetal fraction) from polymorphisms such as small base variations or insertions-deletions are disclosed. Sequenced data from a multigenomic source is used to determine allele counts for one or more of the polymorphisms. For one or more of the polymorphisms, zygosity is assigned, and genomic fraction is determined from the zygosity and allele counts. Certain embodiments employ SNPs as the relevant polymorphism. The disclosed methods can be applied as part of an intentional, pre-designed re-sequencing study targeted against known polymorphisms or can be used in a retrospective analysis of variations found by coincidence in overlapping sequences generated from maternal plasma (or any other setting where a mixture of DNA from several people are present).
    Type: Application
    Filed: August 11, 2016
    Publication date: February 9, 2017
    Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
  • Patent number: 9447453
    Abstract: Methods of reliably estimating genomic fraction (e.g., fetal fraction) from polymorphisms such as small base variations or insertions-deletions are disclosed. Sequenced data from a multigenomic source is used to determine allele counts for one or more of the polymorphisms. For one or more of the polymorphisms, zygosity is assigned, and genomic fraction is determined from the zygosity and allele counts. Certain embodiments employ SNPs as the relevant polymorphism. The disclosed methods can be applied as part of an intentional, pre-designed re-sequencing study targeted against known polymorphisms or can be used in a retrospective analysis of variations found by coincidence in overlapping sequences generated from maternal plasma (or any other setting where a mixture of DNA from several people are present).
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: September 20, 2016
    Assignee: Verinata Health, Inc.
    Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
  • Patent number: 9115401
    Abstract: Methods are disclosed for resolving measurement problems such problems in measuring chromosomal copy number. Some disclosed methods involve first selecting a primary assay element characteristic to partition. Such characteristic may be a source of experimental variability such as the GC content of measured DNA sequences. Additionally, the disclosed methods may employ an abundance or copy number function to transform the assay element frequencies into an abundance, dose, copy number score, or the like. In some cases, the disclosed methods estimate an amount of certain fetal DNA in a sample. The methods can further compare the estimated amount to a measured amount of fetal DNA in the sample. The comparison can be used to determine the fetal sex or aneuploidy.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: August 25, 2015
    Assignee: Verinata Health, Inc.
    Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
  • Publication number: 20140274752
    Abstract: Disclosed are methods and tools for rapidly aligning reads to a reference sequence. These methods and tools employ Bloom filters or similar set membership testers to perform the alignment. The reads may be short sequences of nucleic acids or other biological molecules and the reference sequences may be sequences of genomes, chromosomes, etc. The Bloom filters include a collection of hash functions, a bit array, and associated logic for applying reads to the filter. Each filter, and there may be multiple of these used in a particular application, is used to determine whether an applied read is present in a reference sequence. Each Bloom filter is associated with a single reference sequence such as the sequence of a particular chromosome. In one example, chromosomal abundance is determined by aligning reads from a sequencer to multiple chromosomes, each having an associated Bloom filter or other set membership tester.
    Type: Application
    Filed: October 18, 2012
    Publication date: September 18, 2014
    Inventors: Erich D. Blume, John P. Burke, Hui Huang
  • Publication number: 20140193818
    Abstract: Methods are disclosed for resolving measurement problems such problems in measuring chromosomal copy number. Some disclosed methods involve first selecting a primary assay element characteristic to partition. Such characteristic may be a source of experimental variability such as the GC content of measured DNA sequences. Additionally, the disclosed methods may employ an abundance or copy number function to transform the assay element frequencies into an abundance, dose, copy number score, or the like. In some cases, the disclosed methods estimate an amount of certain fetal DNA in a sample. The methods can further compare the estimated amount to a measured amount of fetal DNA in the sample. The comparison can be used to determine the fetal sex or aneuploidy.
    Type: Application
    Filed: February 21, 2014
    Publication date: July 10, 2014
    Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
  • Patent number: 8700341
    Abstract: Methods are disclosed for resolving measurement problems such problems in measuring chromosomal copy number. Some disclosed methods involve first selecting a primary assay element characteristic to partition. Such characteristic may be a source of experimental variability such as the GC content of measured DNA sequences. Additionally, the disclosed methods may employ an abundance or copy number function to transform the assay element frequencies into an abundance, dose, copy number score, or the like. In some cases, the disclosed methods estimate an amount of certain fetal DNA in a sample. The methods can further compare the estimated amount to a measured amount of fetal DNA in the sample. The comparison can be used to determine the fetal sex or aneuploidy.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: April 15, 2014
    Assignee: Verinata Health, Inc.
    Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
  • Publication number: 20120264121
    Abstract: Methods of reliably estimating genomic fraction (e.g., fetal fraction) from polymorphisms such as small base variations or insertions-deletions are disclosed. Sequenced data from a multigenomic source is used to determine allele counts for one or more of the polymorphisms. For one or more of the polymorphisms, zygosity is assigned, and genomic fraction is determined from the zygosity and allele counts. Certain embodiments employ SNPs as the relevant polymorphism. The disclosed methods can be applied as part of an intentional, pre-designed re-sequencing study targeted against known polymorphisms or can be used in a retrospective analysis of variations found by coincidence in overlapping sequences generated from maternal plasma (or any other setting where a mixture of DNA from several people are present).
    Type: Application
    Filed: April 12, 2012
    Publication date: October 18, 2012
    Applicant: VERINATA HEALTH, INC.
    Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
  • Publication number: 20110177517
    Abstract: Methods are disclosed for resolving measurement problems such problems in measuring chromosomal copy number. Some disclosed methods involve first selecting a primary assay element characteristic to partition. Such characteristic may be a source of experimental variability such as the GC content of measured DNA sequences. Additionally, the disclosed methods may employ an abundance or copy number function to transform the assay element frequencies into an abundance, dose, copy number score, or the like. In some cases, the disclosed methods estimate an amount of certain fetal DNA in a sample. The methods can further compare the estimated amount to a measured amount of fetal DNA in the sample. The comparison can be used to determine the fetal sex or aneuploidy.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 21, 2011
    Applicant: ARTEMIS HEALTH, INC.
    Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
  • Publication number: 20090163177
    Abstract: Described are computer-based methods and apparatuses, including computer program products, for providing a user interface for guest communication and information delivery. The user interface is provided on a computing device located in, for example, a guest's hotel room. The computing device is part of a system that can include internal and external networks, webportals, e-mail modules, document modules, and information storage modules. The guest uses the user interface to perform tasks that might otherwise require multiple resources. Guests may make telephone calls, send electronic messages, receive electronic messages, have electronic messages received by the hotel forwarded to other e-mail addresses, browse the Internet, and/or retrieve information on hotel services using the same computing device.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Applicant: FMR LLC
    Inventors: Steven Clarke Bearden, Alvin W. Lee, John P. Burke
  • Patent number: 4485687
    Abstract: A rotary transmission is of the dual clutch kind and includes three gear trains through which the clutches providing alternative drive paths between a common input shaft and a common output shaft. One clutch drives the output shaft either through a two-wheel gear train or through a three-wheel train of which the first wheel is a gear wheel driven directly from the input shaft, the second wheel is a gear wheel interengaged with the first wheel and journalled on the output shaft and the third wheel is a sleeve wheel journalled on and engageable with the output shaft so that the second wheel drives the output shaft through the sleeve wheel. The other clutch is arranged to drive the output shaft either through a two-wheel gear train of which the second gear wheel is provided by the sleeve wheel or through a six-wheel gear train of which all the gear wheels are members of the first, second and third mentioned trains.
    Type: Grant
    Filed: June 8, 1982
    Date of Patent: December 4, 1984
    Assignee: Automotive Products plc
    Inventors: John P. Burke, Alastair J. Young
  • Patent number: 4391162
    Abstract: A vacuum assisted booster having an input rod with a thrust member thereon, an output rod with a piston head thereon, and an elastomeric disc located between the thrust member and the piston head. The piston head has an axial bore therein and the thrust member has an axial projection that extends through the elastomeric disc into the bore. The projection is anchored to the piston head by a cap fitted to the head and which allows some forward movement of the thrust member to apply a load to the elastomeric disc but limits axial separation of the piston head and thrust member on the return stroke.
    Type: Grant
    Filed: September 2, 1980
    Date of Patent: July 5, 1983
    Assignee: Automotive Products Limited
    Inventor: John P. Burke
  • Patent number: 4375251
    Abstract: An internal drum brake of the kind including a strut between a hand brake lever pivoted on one shoe and the other shoe, has a wear adjuster comprising a pair of screw-threaded members with a pawl and pawl wheel for relative rotation thereof on operation of the service brake system, the axis of the screw-threaded members intercepting the line of action between the shoe and an abutment which limits return movement of the shoe to a brake-released position, one of the members having a spacer between the shoe and the abutment, the spacing effect of the spacer being changed on relative rotation of the screw-threaded members.
    Type: Grant
    Filed: August 28, 1980
    Date of Patent: March 1, 1983
    Assignee: Automotive Products Limited
    Inventors: John P. Burke, Alastair J. Young
  • Patent number: 4303006
    Abstract: This invention relates to a rolling diaphragm apparatus in which an annular diaphragm is secured by its outer and inner peripheries respectively to a housing and a piston between which the diaphragm seals against fluid leakage. One of said peripheries is formed as a bead which locates in an annular seat on the part to which said one periphery is attached, the bead being retained on its seat by a resilient retaining ring that snaps into position on the seat part. The bead has a substantially radially directed face and a substantially axially directed face, both of said faces engaging with corresponding faces on the retaining ring which snaps into positive engagement with the seat part.Such a construction is particularly useful in vacuum boosters for motor vehicle braking systems.
    Type: Grant
    Filed: December 13, 1979
    Date of Patent: December 1, 1981
    Assignee: Automotive Products Limited
    Inventors: John P. Burke, Alastair J. Young
  • Patent number: 4282800
    Abstract: This invention relates to fluid pressure servo motors having two operatively independent fluid chambers, each chamber having a piston means therein movable in response to a fluid pressure differential so as to alter in use a two position device from one to the other of said two positions, each piston means having a lost motion means connection to allow the idle return of the piston in the event of cessation of the fluid pressure differential, wherein the two pistons are co-axial and move in opposite directions in response to the pressure differential and one piston is fixed to a stirrup formed as a wire loop which bridges the other piston to act in use against said device.
    Type: Grant
    Filed: October 10, 1979
    Date of Patent: August 11, 1981
    Assignee: Automotive Products Limited
    Inventors: Alastair J. Young, John P. Burke