Patents by Inventor John F. Regan
John F. Regan 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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Publication number: 20230287486Abstract: Method of haplotype analysis. In an exemplary method, an aqueous phase containing nucleic acid may be partitioned into a plurality of discrete volumes. At least one allele sequence may be amplified in the volumes from each of a first polymorphic locus and a second polymorphic locus that exhibit sequence variation in the nucleic acid. At least one measure of co-amplification of allele sequences from both loci in the same volumes may be determined. A haplotype of the first and second loci may be selected based on the at least one measure of co-amplification.Type: ApplicationFiled: November 14, 2022Publication date: September 14, 2023Applicant: Bio-Rad Laboratories, Inc.Inventors: John F. REGAN, Serge SAXONOV, Michael Y. LUCERO, Benjamin J. HINDSON, Phillip BELGRADER, Simant DUBE, Austin SO, Jeffrey Clark MELLEN, Nicholas Jack HEREDIA, Kevin D. NESS, Billy W. COLSTON, Jr.
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Patent number: 11499181Abstract: Method of haplotype analysis. In an exemplary method, an aqueous phase containing nucleic acid may be partitioned into a plurality of discrete volumes. At least one allele sequence may be amplified in the volumes from each of a first polymorphic locus and a second polymorphic locus that exhibit sequence variation in the nucleic acid. At least one measure of co-amplification of allele sequences from both loci in the same volumes may be determined. A haplotype of the first and second loci may be selected based on the at least one measure of co-amplification.Type: GrantFiled: December 28, 2018Date of Patent: November 15, 2022Assignee: Bio-Rad Laboratories, Inc.Inventors: John F. Regan, Serge Saxonov, Michael Y. Lucero, Benjamin J. Hindson, Phillip Belgrader, Simant Dube, Austin P. So, Jeffrey C. Mellen, Nicholas J. Heredia, Kevin D. Ness, Billy W. Colston, Jr.
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Publication number: 20220033883Abstract: Method of analysis for alleles of a target. In the method, a plurality of fluid volumes may be formed. Each fluid volume may contain a first primer pair to amplify a first allele of a target, a second primer pair to amplify a second allele of the target, a first reporter including a first photoluminophore and providing a primer of the first primer pair, and a second reporter including a second photoluminophore and providing a primer of the second primer pair. Each of the first and second reporters may include an oligomer having a quencher, and the oligomer may be configured to base-pair with the primer of the first primer pair and the primer of the second primer pair. The first and second alleles may be amplified using the first and second primer pairs. Photoluminescence may be detected. A level of each allele may be determined.Type: ApplicationFiled: August 6, 2021Publication date: February 3, 2022Applicant: Bio-Rad Laboratories, Inc.Inventors: John F. REGAN, Dianna MAAR, Dawne N. SHELTON, Tina C. LEGLER, Samantha COOPER, Wei YANG, Eli A. HEFNER, Niels KLITGORD
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Patent number: 11085070Abstract: System, including methods, apparatus, and compositions, for performing amplification assays with an amplification reporter including a first oligomer and a second oligomer capable of base-pairing with one another below a melting temperature of the reporter. The reporter may have a detectable photoluminescence that is affected, such as reduced, by base-pairing of the first and second oligomers with one another. A target, such as a nucleic acid target sequence, may be amplified in at least one volume, such as a plurality of partitions, above the melting temperature, and photoluminescence of the reporter may be detected from the at least one volume below the melting temperature. A property of the target, such as a concentration of the target, may be determined based on the photoluminescence detected.Type: GrantFiled: March 30, 2020Date of Patent: August 10, 2021Assignee: Bio-Rad Laboratories, Inc.Inventors: John F. Regan, Dianna Maar, Dawne N. Shelton, Tina C. Legler, Samantha Cooper, Wei Yang, Eli A. Hefner, Niels Klitgord
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Publication number: 20200270677Abstract: System, including methods, apparatus, and compositions, for performing amplification assays with an amplification reporter including a first oligomer and a second oligomer capable of base-pairing with one another below a melting temperature of the reporter. The reporter may have a detectable photoluminescence that is affected, such as reduced, by base-pairing of the first and second oligomers with one another. A target, such as a nucleic acid target sequence, may be amplified in at least one volume, such as a plurality of partitions, above the melting temperature, and photoluminescence of the reporter may be detected from the at least one volume below the melting temperature. A property of the target, such as a concentration of the target, may be determined based on the photoluminescence detected.Type: ApplicationFiled: March 30, 2020Publication date: August 27, 2020Applicant: Bio-Rad Laboratories, Inc.Inventors: John F. REGAN, Dianna MAAR, Dawne N. SHELTON, Tina C. LEGLER, Samantha COOPER, Wei YANG, Eli A. HEFNER, Niels KLITGORD
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Patent number: 10604789Abstract: System, including methods, apparatus, and compositions, for performing amplification assays with an amplification reporter including a first oligomer and a second oligomer capable of base-pairing with one another below a melting temperature of the reporter. The reporter may have a detectable photoluminescence that is affected, such as reduced, by base-pairing of the first and second oligomers with one another. A target, such as a nucleic acid target sequence, may be amplified in at least one volume, such as a plurality of partitions, above the melting temperature, and photoluminescence of the reporter may be detected from the at least one volume below the melting temperature. A property of the target, such as a concentration of the target, may be determined based on the photoluminescence detected.Type: GrantFiled: January 20, 2017Date of Patent: March 31, 2020Assignee: Bio-Rad Laboratories, Inc.Inventors: John F. Regan, Dianna Maar, Dawne N. Shelton, Tina C. Legler, Samantha Cooper, Wei Yang, Eli A. Hefner, Niels Klitgord
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Publication number: 20190241947Abstract: Method of haplotype analysis. In an exemplary method, an aqueous phase containing nucleic acid may be partitioned into a plurality of discrete volumes. At least one allele sequence may be amplified in the volumes from each of a first polymorphic locus and a second polymorphic locus that exhibit sequence variation in the nucleic acid. At least one measure of co-amplification of allele sequences from both loci in the same volumes may be determined. A haplotype of the first and second loci may be selected based on the at least one measure of co-amplification.Type: ApplicationFiled: December 28, 2018Publication date: August 8, 2019Applicant: Bio-Rad Laboratories, Inc.Inventors: John F. Regan, Serge Saxonov, Michael Y. Lucero, Benjamin J. Hindson, Phillip Belgrader, Simant Dube, Austin P. So, Jeffrey C. Mellen, Nicholas J. Heredia, Kevin D. Ness, Billy W. Colston, JR.
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Patent number: 10167509Abstract: Provided herein are improved methods, compositions, and kits for analysis of nucleic acids. The improved methods, compositions, and kits can enable copy number estimation of a nucleic acid in a sample. Also provided herein are methods, compositions, and kits for determining the linkage of two or more copies of a target nucleic acid in a sample (e.g. whether the two or more copies are on the same chromosome or different chromosomes) or for phasing alleles.Type: GrantFiled: September 8, 2015Date of Patent: January 1, 2019Assignee: Bio-Rad Laboratories, Inc.Inventors: John F. Regan, Serge Saxonov, Michael Y. Lucero, Benjamin J. Hindson, Phillip Belgrader, Simant Dube, Austin P. So, Jeffrey C. Mellen, Nicholas J. Heredia, Kevin D. Ness, Billy W. Colston, Jr.
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Patent number: 9845496Abstract: Digital assay system, including methods, apparatus, and compositions, for performing target assays in partitions each containing a generic reporter and a specific reporter for target amplification.Type: GrantFiled: December 21, 2015Date of Patent: December 19, 2017Assignee: Bio-Rad Laboratories, Inc.Inventors: John F. Regan, Svilen S. Tzonev, Yann Jouvenot, Claudia Litterst, Dianna Maar, Geoff McDermott
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Publication number: 20170166957Abstract: System, including methods, apparatus, and compositions, for performing amplification assays with an amplification reporter including a first oligomer and a second oligomer capable of base-pairing with one another below a melting temperature of the reporter. The reporter may have a detectable photoluminescence that is affected, such as reduced, by base-pairing of the first and second oligomers with one another. A target, such as a nucleic acid target sequence, may be amplified in at least one volume, such as a plurality of partitions, above the melting temperature, and photoluminescence of the reporter may be detected from the at least one volume below the melting temperature. A property of the target, such as a concentration of the target, may be determined based on the photoluminescence detected.Type: ApplicationFiled: January 20, 2017Publication date: June 15, 2017Inventors: John F. Regan, Dianna Maar, Dawne N. Shelton, Tina C. Legler, Samantha Cooper, Wei Yang, Eli A. Hefner, Niels Klitgord
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Patent number: 9556475Abstract: System, including methods, apparatus, and compositions, for performing amplification assays with an amplification reporter including a first oligomer and a second oligomer capable of base-pairing with one another below a melting temperature of the reporter. The reporter may have a detectable photoluminescence that is affected, such as reduced, by base-pairing of the first and second oligomers with one another. A target, such as a nucleic acid target sequence, may be amplified in at least one volume, such as a plurality of partitions, above the melting temperature, and photoluminescence of the reporter may be detected from the at least one volume below the melting temperature. A property of the target, such as a concentration of the target, may be determined based on the photoluminescence detected.Type: GrantFiled: August 12, 2014Date of Patent: January 31, 2017Assignee: Bio-Rad Laboratories, Inc.Inventors: John F. Regan, Dianna Maar, Dawne N. Shelton, Tina C. Legler, Samantha Cooper, Wei Yang, Eli A. Hefner, Niels Klitgord
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Publication number: 20160102346Abstract: Digital assay system, including methods, apparatus, and compositions, for performing target assays in partitions each containing a generic reporter and a specific reporter for target amplification.Type: ApplicationFiled: December 21, 2015Publication date: April 14, 2016Inventors: John F. Regan, Svilen S. Tzonev, Yann Jouvenot, Claudia Litterst, Dianna Maar, Geoff McDermott
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Publication number: 20160076099Abstract: Provided herein are improved methods, compositions, and kits for analysis of nucleic acids. The improved methods, compositions, and kits can enable copy number estimation of a nucleic acid in a sample. Also provided herein are methods, compositions, and kits for determining the linkage of two or more copies of a target nucleic acid in a sample (e.g. whether the two or more copies are on the same chromosome or different chromosomes) or for phasing alleles.Type: ApplicationFiled: September 8, 2015Publication date: March 17, 2016Inventors: John F. Regan, Serge Saxonov, Michael Y. Lucero, Benjamin J. Hindson, Phillip Belgrader, Simant Dube, Austin P. So, Jeffrey C. Mellen, Nicholas J. Heredia, Kevin D. Ness, Billy W. Colston, Jr.
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Patent number: 9217175Abstract: Digital assay system, including methods, apparatus, and compositions, for performing target assays in partitions each containing a generic reporter and a specific reporter for target amplification.Type: GrantFiled: February 3, 2014Date of Patent: December 22, 2015Assignee: Bio-Rad Laboratories, Inc.Inventors: John F. Regan, Svilen S. Tzonev, Yann Jouvenot, Claudia Litterst, Dianna Maar, Geoff McDermott
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Publication number: 20150148250Abstract: System, including methods, apparatus, and compositions, for performing amplification assays with an amplification reporter including a first oligomer and a second oligomer capable of base-pairing with one another below a melting temperature of the reporter. The reporter may have a detectable photoluminescence that is affected, such as reduced, by base-pairing of the first and second oligomers with one another. A target, such as a nucleic acid target sequence, may be amplified in at least one volume, such as a plurality of partitions, above the melting temperature, and photoluminescence of the reporter may be detected from the at least one volume below the melting temperature. A property of the target, such as a concentration of the target, may be determined based on the photoluminescence detected.Type: ApplicationFiled: August 12, 2014Publication date: May 28, 2015Inventors: John F. Regan, Dianna Maar, Dawne N. Shelton, Tina C. Legler, Samantha Cooper, Wei Yang, Eli A. Hefner, Niels Klitgord
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Publication number: 20140221238Abstract: Digital assay system, including methods, apparatus, and compositions, for performing target assays in partitions each containing a generic reporter and a specific reporter for target amplification.Type: ApplicationFiled: February 3, 2014Publication date: August 7, 2014Inventors: John F. Regan, Svilen S. Tzonev, Yann Jouvenot, Claudia Litterst, Dianna Maar, Geoff McDermott
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Patent number: 5290853Abstract: One-part, ambient moisture-curable polyurethane adhesives are produced by reacting with a polyol selected from the group consisting of polyether diols, triols and tetrols based on propylene glycol or ethylene-capped propylene glycol and mixtures thereof with an organic polyisocyanate for a sufficient time to form a reaction product including an isocyanate-terminated prepolymer and unreacted isocyanate, admixing with the reaction product talc or another additive containing free water which reacts with the unreacted isocyanate to extend the chain of the polyurethane and provide hard segments therein, allowing the water-isocyanate reaction to proceed until a predetermined amount of unreacted isocyanate remains and introducing the resulting adhesive into a substantially hermetically sealed container or package.Type: GrantFiled: September 11, 1991Date of Patent: March 1, 1994Assignee: ChemRex Inc.Inventors: John F. Regan, deceased, Benjamin E. Burrows
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Patent number: 4439819Abstract: A switching regulator with controlled simulated load has a control which connects and disconnects the simulated load to the output of the regulator. The control is responsive to an error signal of a first comparator. A second comparator receives the output of said first comparator and produces a control signal for the simulated load when the regulator output reaches a predetermined level.Type: GrantFiled: August 9, 1982Date of Patent: March 27, 1984Assignee: Rockwell InternationalInventor: John F. Regan
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Patent number: 4388500Abstract: An improved electronic hybrid for coupling signals between two wire and four wire transmission circuits. The hybrid includes a pair of amplifiers associated with a pair of terminating impedances which are serially connected between the amplifier outputs and the two wire port. The amplifiers driving the two wire port through the terminating impedances are biased to couple a dc potential to the two wire line whereby the terminating impedances serve as battery feed resistors. Each amplifier-impedance arrangement includes a feedback circuit connected from the junction between the impedance and the two wire port and an input of the amplifier for providing positive feedback for the amplifier so that the output impedance of the hybrid is maintained at a desired level using battery feed resistors of smaller value than heretofore required. The result is the ability to drive longer loops through the smaller series impedances while at the same time exhibiting the desired terminating impedance.Type: GrantFiled: February 27, 1981Date of Patent: June 14, 1983Assignee: Wescom, Inc.Inventor: John F. Regan
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Patent number: 4359679Abstract: In a system of parallel switching regulators sharing a common load, each regulator generates controllable pulses from an unregulated d-c. voltage source and then smoothing those pulses to form a d-c. output that varies according to changes in the pulses. A comparator controls the pulses according to the differential between a reference signal and a feedback signal, and an output resistor is connected between the comparator and the load. A reference signal source generates a reference signal for the comparator in a first one of the regulators, and the load side of the output resistor in the first regulator is connected to the feedback signal input to the comparator in that regulator so that the load voltage is determined by the reference signal for the first regulator.Type: GrantFiled: January 16, 1978Date of Patent: November 16, 1982Assignee: Wescom Switching, Inc.Inventor: John F. Regan