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).
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Patent number: 11335437Abstract: 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: GrantFiled: November 10, 2017Date of Patent: May 17, 2022Assignee: Verinata Health, Inc.Inventors: Erich D. Blume, John P. Burke, Hui Huang
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Publication number: 20200251180Abstract: 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: ApplicationFiled: April 20, 2020Publication date: August 6, 2020Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
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Patent number: 10658070Abstract: 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: GrantFiled: August 11, 2016Date of Patent: May 19, 2020Assignee: Verinata Health, Inc.Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
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Publication number: 20180100248Abstract: 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: ApplicationFiled: November 10, 2017Publication date: April 12, 2018Inventors: Erich D. Blume, John P. Burke, Hui Huang
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Patent number: 9845552Abstract: 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: GrantFiled: October 18, 2012Date of Patent: December 19, 2017Assignee: Verinata Health, Inc.Inventors: Erich D. Blume, John P. Burke, Hui Huang
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Publication number: 20170039318Abstract: 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: ApplicationFiled: August 11, 2016Publication date: February 9, 2017Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
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Patent number: 9447453Abstract: 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: GrantFiled: April 12, 2012Date of Patent: September 20, 2016Assignee: Verinata Health, Inc.Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
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Patent number: 9115401Abstract: 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: GrantFiled: February 21, 2014Date of Patent: August 25, 2015Assignee: Verinata Health, Inc.Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
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Publication number: 20140274752Abstract: 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: ApplicationFiled: October 18, 2012Publication date: September 18, 2014Inventors: Erich D. Blume, John P. Burke, Hui Huang
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Publication number: 20140193818Abstract: 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: ApplicationFiled: February 21, 2014Publication date: July 10, 2014Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
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Patent number: 8700341Abstract: 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: GrantFiled: January 19, 2011Date of Patent: April 15, 2014Assignee: Verinata Health, Inc.Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
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Publication number: 20120264121Abstract: 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: ApplicationFiled: April 12, 2012Publication date: October 18, 2012Applicant: VERINATA HEALTH, INC.Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
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Publication number: 20110177517Abstract: 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: ApplicationFiled: January 19, 2011Publication date: July 21, 2011Applicant: ARTEMIS HEALTH, INC.Inventors: Richard P. Rava, Brian K. Rhees, John P. Burke
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Publication number: 20090163177Abstract: 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: ApplicationFiled: December 21, 2007Publication date: June 25, 2009Applicant: FMR LLCInventors: Steven Clarke Bearden, Alvin W. Lee, John P. Burke
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Patent number: 4485687Abstract: 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: GrantFiled: June 8, 1982Date of Patent: December 4, 1984Assignee: Automotive Products plcInventors: John P. Burke, Alastair J. Young
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Patent number: 4391162Abstract: 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: GrantFiled: September 2, 1980Date of Patent: July 5, 1983Assignee: Automotive Products LimitedInventor: John P. Burke
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Patent number: 4375251Abstract: 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: GrantFiled: August 28, 1980Date of Patent: March 1, 1983Assignee: Automotive Products LimitedInventors: John P. Burke, Alastair J. Young
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Patent number: 4303006Abstract: 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: GrantFiled: December 13, 1979Date of Patent: December 1, 1981Assignee: Automotive Products LimitedInventors: John P. Burke, Alastair J. Young
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Patent number: 4282800Abstract: 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: GrantFiled: October 10, 1979Date of Patent: August 11, 1981Assignee: Automotive Products LimitedInventors: Alastair J. Young, John P. Burke