Patents by Inventor David M. Cox
David M. Cox 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: 11953478Abstract: Each of one or more unknown compounds are separated from a sample over a separation time period. Separated compounds are ionized, producing one or more compound precursor ions for each of the unknown compounds and a plurality of background precursor ions. A precursor ion mass spectrum is measured for the combined compound and background precursor ions at each time step of a plurality of time steps spread across the separation time period, producing a plurality of precursor ion mass spectra. One or more background precursor ions are selected from the plurality of precursor ion mass spectra that have a resolving power in a range below a threshold expected resolving power. A separation time is detected for an unknown compound when a decrease in an intensity measurement of the selected background precursor ions over a time period exceeds a threshold decrease in intensity with respect to time.Type: GrantFiled: March 10, 2020Date of Patent: April 9, 2024Assignee: DH Technologies Development Pte. Ltd.Inventors: Nic G. Bloomfield, Lyle Lorrence Burton, John Lawrence Campbell, David M. Cox, Eva Duchoslav, Adam San-Ho Lau
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Patent number: 11879156Abstract: A sensor apparatus includes a substrate, a semiconductor device disposed over the substrate, the semiconductor device having a surface electrode structure, and a saccharide coating formed over the surface electrode structure. The saccharide coating can be removed prior to use. The semiconductor device can further include a well and optionally a bead disposed in the well.Type: GrantFiled: August 10, 2022Date of Patent: January 23, 2024Assignee: Life Technologies CorporationInventors: Phil Waggoner, James A. Ball, Wolfgang Hinz, Michael L. Minto, Scott Parker, David M. Cox, Alexander Mastroianni, Jeremy Gray, Marc Glazer, Kimberly Gorrell
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Publication number: 20230377865Abstract: A tandem mass spectrometer may be operative to receive sample ions and to monitor a MS scan for a sentinel ion. Upon detection of the sentinel ion in MS1, the mass spectrometer switches to a group of at least one MS/MS scan associated with the sentinel ion to fragment incoming sample ions and to mass analyze resulting product ions of the fragmentation.Type: ApplicationFiled: October 7, 2021Publication date: November 23, 2023Inventors: Yves Le Blanc, David M. Cox
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Publication number: 20230238232Abstract: An ADE device identifies an identifiable sequence of one or more ejections from at least one sample using a different value or pattern of values for one or more ADE parameters. The identifiable one or more ejections are performed to produce one or more mass peaks that have a different feature value or pattern of feature values for one or more peak features than other mass peaks produced. Ejection times are stored. One or more detected peaks with the different feature values or pattern of feature values are identified as produced by the identifiable one or more ejections. A delay time is calculated from the time of the identifiable ejections and the time of the identified detected peaks and the peaks are aligned with samples using delay time, stored times, and order of the samples.Type: ApplicationFiled: May 21, 2021Publication date: July 27, 2023Inventors: David M. Cox, Chang Liu, Stephen A. Tate
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Publication number: 20230230825Abstract: Each sample of a series of samples is ejected at an ejection time and according to a sample order. Each ejected sample of the series is ionized, producing ion beam. A list of different sets of MRM transitions is received. Each set of the list corresponds to a different sample. A group of one or more different sets is selected from the list. Initially, each set selected for the group corresponds to a different sample of one or more first samples of the series. A mass spectrometer is instructed to execute each transition of each set of the group on the ion beam until a transition of a set of the group is detected, upon which, one or more next sets are selected from the list to be monitored using the set of the detected transition and the sample order.Type: ApplicationFiled: May 21, 2021Publication date: July 20, 2023Inventors: David M. Cox, Chang Liu
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Publication number: 20230037531Abstract: A sensor apparatus includes a substrate, a semiconductor device disposed over the substrate, the semiconductor device having a surface electrode structure, and a saccharide coating formed over the surface electrode structure. The saccharide coating can be removed prior to use. The semiconductor device can further include a well and optionally a bead disposed in the well.Type: ApplicationFiled: August 10, 2022Publication date: February 9, 2023Inventors: Phil Waggoner, James A. Ball, Wolfgang Hinz, Michael L. Minto, Scott Parker, David M. Cox, Alexander Mastroianni, Jeremy Gray, Marc Glazer, Kimberly Gorrell
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Publication number: 20220359181Abstract: Before a sample is introduced into a liquid sample delivery device, an ion source device receives aqueous mobile phase solution from the liquid sample delivery device and ionizes compounds of the aqueous mobile phase solution, producing an ion beam. A tandem mass spectrometer performs a first neutral loss scan of the ion beam with a first neutral loss value set to a molecular weight of a first known solvent, producing a first intensity, and performs a second neutral loss scan of the ion beam with a second neutral loss value set to a molecular weight of a second known solvent, producing a second intensity. A ratio of the first intensity to the second intensity is calculated. It is determined if the aqueous mobile phase solution is properly being delivered by the liquid sample delivery device based on the ratio.Type: ApplicationFiled: August 22, 2020Publication date: November 10, 2022Inventors: Yves Le Blanc, David M. Cox
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Patent number: 11441178Abstract: A sensor apparatus includes a substrate, a semiconductor device disposed over the substrate, the semiconductor device having a surface electrode structure, and a saccharide coating formed over the surface electrode structure. The saccharide coating can be removed prior to use. The semiconductor device can further include a well and optionally a bead disposed in the well.Type: GrantFiled: March 20, 2020Date of Patent: September 13, 2022Assignee: Life Technologies CorporationInventors: Phil Waggoner, James A. Ball, Wolfgang Hinz, Michael L. Minto, Scott Parker, David M. Cox, Alexander Mastroianni, Jeremy Gray, Marc Glazer, Kimberly Gorrell
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Publication number: 20220187260Abstract: Each of one or more unknown compounds are separated from a sample over a separation time period. Separated compounds are ionized, producing one or more compound precursor ions for each of the unknown compounds and a plurality of background precursor ions. A precursor ion mass spectrum is measured for the combined compound and background precursor ions at each time step of a plurality of time steps spread across the separation time period, producing a plurality of precursor ion mass spectra. One or more background precursor ions are selected from the plurality of precursor ion mass spectra that have a resolving power in a range below a threshold expected resolving power. A separation time is detected for an unknown compound when a decrease in an intensity measurement of the selected background precursor ions over a time period exceeds a threshold decrease in intensity with respect to time.Type: ApplicationFiled: March 10, 2020Publication date: June 16, 2022Inventors: Nic G. Bloomfield, Lyle Lorrence Burton, John Lawrence Campbell, David M. Cox, Eva Duchoslav, Adam San-Ho Lau
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Publication number: 20220033896Abstract: Various embodiments of the teachings relate to a system or method for sample preparation or analysis in biochemical or molecular biology procedures. The sample preparation can involve small volume processed in discrete portions or segments or slugs, herein referred to as discrete volumes. A molecular biology procedure can be nucleic acid analysis. Nucleic acid analysis can be an integrated DNA amplification/DNA sequencing procedure.Type: ApplicationFiled: October 19, 2021Publication date: February 3, 2022Applicant: APPLIED BIOSYSTEMS, LLCInventors: Linda G. LEE, Sam L. WOO, Congcong MA, Richard T. REEL, Mark F. OLDHAM, David M. COX, Benjamin G. SCHROEDER, Jon M. SORENSON, Willy WIYATNO
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Patent number: 11162137Abstract: Various embodiments of the teachings relate to a system or method for sample preparation or analysis in biochemical or molecular biology procedures. The sample preparation can involve small volume processed in discrete portions or segments or slugs, herein referred to as discrete volumes. A molecular biology procedure can be nucleic acid analysis. Nucleic acid analysis can be an integrated DNA amplification/DNA sequencing procedure.Type: GrantFiled: August 3, 2018Date of Patent: November 2, 2021Assignee: APPLIED BIOSYSTEMS LLCInventors: Linda G. Lee, Sam L. Woo, Congcong Ma, Richard T. Reel, Mark F. Oldham, David M. Cox, Benjamin G. Schroeder, Jon M. Sorenson, Willy Wiyatno
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Patent number: 10724086Abstract: A sensor apparatus includes a substrate, a semiconductor device disposed over the substrate, the semiconductor device having a surface electrode structure, and a saccharide coating formed over the surface electrode structure. The saccharide coating can be removed prior to use. The semiconductor device can further include a well and optionally a bead disposed in the well.Type: GrantFiled: March 4, 2016Date of Patent: July 28, 2020Assignee: Life Technologies CorporationInventors: Phil Waggoner, James A. Ball, Wolfgang Hinz, Michael L. Minto, Scott Parker, David M. Cox, Alexander Mastroianni, Jeremy Gray, Marc Glazer, Kimberly Gorrell
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Publication number: 20200216893Abstract: A sensor apparatus includes a substrate, a semiconductor device disposed over the substrate, the semiconductor device having a surface electrode structure, and a saccharide coating formed over the surface electrode structure. The saccharide coating can be removed prior to use. The semiconductor device can further include a well and optionally a bead disposed in the well.Type: ApplicationFiled: March 20, 2020Publication date: July 9, 2020Inventors: Phil Waggoner, James A. Ball, Wolfgang Hinz, Michael L. Minto, Scott Parker, David M. Cox, Alexander Mastroianni, Jeremy Gray, Marc Glazer, Kimberly Gorrell
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Patent number: 10619201Abstract: A sensor apparatus includes a substrate, a semiconductor device disposed over the substrate, the semiconductor device having a surface electrode structure, and a saccharide coating formed over the surface electrode structure. The saccharide coating can be removed prior to use. The semiconductor device can further include a well and optionally a bead disposed in the well.Type: GrantFiled: November 6, 2018Date of Patent: April 14, 2020Assignee: Life Technologies CorporationInventors: Phil Waggoner, James A. Ball, Wolfgang Hinz, Michael L. Minto, Scott Parker, David M. Cox, Alexander Mastroianni, Jeremy Gray, Marc Glazer, Kimberly Gorrell
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Publication number: 20190233887Abstract: Various embodiments of a low-volume sequencing system are provided herein. The system can include a low-volume flowcell having at least one reaction chamber of a defined volume (e.g., less than about 100 ?l). The system can also include an automated reagent delivery mechanism configured to reversibly couple with the inlet port corresponding to a target reaction chamber thereby placing allowing for reagent to be accurately moved from a storage container to the reaction chamber with minimal reagent waste. The flowcells can include a plurality of reaction chambers (e.g., 6) thereby allowing for parallel analysis of multiple samples. Various methods of analyzing a biomolecule are also provided herein.Type: ApplicationFiled: December 19, 2018Publication date: August 1, 2019Inventors: Jon A. HOSHIZAKI, Joon Mo YANG, Maryam SHARIATI, David M. COX, Kirk M. HIRANO, John BRIDGHAM, George Stefan GOLDA, Sam Lee WOO
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Patent number: 10309930Abstract: Systems and methods are provided for providing a DMS precursor ion survey scan. An ion source configured to receive a sample is instructed to ionize the sample using a processor. A DMS device configured to receive ions from the ion source is instructed to separate precursor ions received from the ion source and transmit precursor ions using two or more CoVs using the processor. A mass analyzer configured to receive transmitted precursor ions from the DMS device is instructed to measure the m/z intensities of the transmitted precursor ions across an m/z range at each CoV of the two or more CoVs using the processor. The measured m/z intensities of the transmitted precursor ions received from the mass analyzer are stored as a function of m/z value and CoV using the processor. This produces a stored two-dimensional mapping of m/z intensities of the precursor ions of the sample.Type: GrantFiled: September 21, 2015Date of Patent: June 4, 2019Assignee: DH Technologies Development Pte. Ltd.Inventors: John Lawrence Campbell, Eva Duchoslav, Yves Le Blanc, David M. Cox
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Publication number: 20190085387Abstract: Various embodiments of the teachings relate to a system or method for sample preparation or analysis in biochemical or molecular biology procedures. The sample preparation can involve small volume processed in discrete portions or segments or slugs, herein referred to as discrete volumes. A molecular biology procedure can be nucleic acid analysis. Nucleic acid analysis can be an integrated DNA amplification/DNA sequencing procedure.Type: ApplicationFiled: August 3, 2018Publication date: March 21, 2019Inventors: Linda G. Lee, Sam L. Woo, Congcong Ma, Richard T. Reel, Mark F. Oldham, David M. Cox, Benjamin G. Schroeder, Jon M. Sorenson, Willy Wiyatno
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Publication number: 20190071723Abstract: A sensor apparatus includes a substrate, a semiconductor device disposed over the substrate, the semiconductor device having a surface electrode structure, and a saccharide coating formed over the surface electrode structure. The saccharide coating can be removed prior to use. The semiconductor device can further include a well and optionally a bead disposed in the well.Type: ApplicationFiled: November 6, 2018Publication date: March 7, 2019Inventors: Phil WAGGONER, James A. BALL, Wolfgang HINZ, Michael L. MINTO, Scott PARKER, David M. COX, Alexander MASTROIANNI, Jeremy GRAY, Marc GLAZER, Kimberly GORRELL
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Patent number: 10204770Abstract: Systems and methods are provided for enabling or disabling a DMS device during an IDA method. Each cycle of the method includes a survey scan step, producing a precursor ion mass spectrum, and an MS/MS scan step. During the MS/MS scan step, one or more user-defined MS/MS scans are performed that correspond to compounds of interest found in the precursor ion mass spectrum. With each user-defined MS/MS scan, a DMS enable parameter that determines if the DMS device is enabled or disabled and one or more DMS parameters necessary to enable the DMS device for the corresponding compound of interest are received. During the MS/MS scan step, for each user-defined MS/MS scan, the DMS device is enabled or disabled according to the DMS enable parameter and one or more parameters of the DMS device are set according to the one or more DMS parameters.Type: GrantFiled: August 9, 2016Date of Patent: February 12, 2019Assignee: DH Technologies Development Pte. Ltd.Inventors: Michael Jarvis, Yves Le Blanc, David M. Cox
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Publication number: 20180269048Abstract: Systems and methods are provided for enabling or disabling a DMS device during an IDA method. Each cycle of the method includes a survey scan step, producing a precursor ion mass spectrum, and an MS/MS scan step. During the MS/MS scan step, one or more user-defined MS/MS scans are performed that correspond to compounds of interest found in the precursor ion mass spectrum. With each user-defined MS/MS scan, a DMS enable parameter that determines if the DMS device is enabled or disabled and one or more DMS parameters necessary to enable the DMS device for the corresponding compound of interest are received. During the MS/MS scan step, for each user-defined MS/MS scan, the DMS device is enabled or disabled according to the DMS enable parameter and one or more parameters of the DMS device are set according to the one or more DMS parameters.Type: ApplicationFiled: August 9, 2016Publication date: September 20, 2018Inventors: Michael Jarvis, Yves Le Blanc, David M. Cox