Patents by Inventor Gary Eiceman
Gary Eiceman 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: 20240128068Abstract: An apparatus for detecting a substance comprising a direct analysis in real time apparatus; a neutral excluder; a mass spectrometer; and a vessel in. The apparatus may also comprise a separator, a gas, an alcohol, a filter, and a pump. The apparatus may also comprise electrodes in communication with the direct analysis in real time apparatus and the neutral excluder. A method for detecting a substance comprising contacting the substance with a direct analysis in real time apparatus ion stream; forming an ion and a neutral particle; flowing the ion and the neutral particle into a neutral excluder; contacting the ion and the neutral particle with a gas; and flowing the ion into a mass spectrometer.Type: ApplicationFiled: December 20, 2023Publication date: April 18, 2024Applicant: Arrowhead Center, Inc.Inventors: Gary A. Eiceman, Jennifer J. Randall, Gyoungil Lee, Alexandre Tarassov
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Patent number: 11862447Abstract: An apparatus for detecting a substance comprising a direct analysis in real time apparatus; a neutral excluder; a mass spectrometer; and a vessel in. The apparatus may also comprise a separator, a gas, an alcohol, a filter, and a pump. The apparatus may also comprise electrodes in communication with the direct analysis in real time apparatus and the neutral excluder. A method for detecting a substance comprising contacting the substance with a direct analysis in real time apparatus ion stream; forming an ion and a neutral particle; flowing the ion and the neutral particle into a neutral excluder; contacting the ion and the neutral particle with a gas; and flowing the ion into a mass spectrometer.Type: GrantFiled: March 1, 2023Date of Patent: January 2, 2024Assignee: Arrowhead Center, Inc.Inventors: Gary A. Eiceman, Jennifer J. Randall, Gyoungil Lee, Alexandre Tarassov
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Publication number: 20230290624Abstract: An apparatus for detecting a substance comprising a direct analysis in real time apparatus; a neutral excluder; a mass spectrometer; and a vessel in. The apparatus may also comprise a separator, a gas, an alcohol, a filter, and a pump. The apparatus may also comprise electrodes in communication with the direct analysis in real time apparatus and the neutral excluder. A method for detecting a substance comprising contacting the substance with a direct analysis in real time apparatus ion stream; forming an ion and a neutral particle; flowing the ion and the neutral particle into a neutral excluder; contacting the ion and the neutral particle with a gas; and flowing the ion into a mass spectrometer.Type: ApplicationFiled: March 1, 2023Publication date: September 14, 2023Applicant: Arrowhead Center, Inc.Inventors: Gary A. Eiceman, Jennifer J. Randall, Gyoungil Lee, Alexandre Tarassov
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Patent number: 11525803Abstract: An ion-mobility spectrometer system includes a housing with an upstream end, a downstream end, and a drift region defined along a longitudinal axis through the housing between the upstream and downstream ends. A first ionizer is operatively connected the housing to supply ions at the upstream end. A second ionizer is operatively connected to the housing to supply ions at the upstream end, wherein the first and second ionizers are both situated upstream of the drift zone relative to an ion flow path through the drift zone. An electric field generator is operatively connected to the housing to drive ions through the drift zone in a direction from the upstream end toward the downstream end. The second ionizer is a radioactive ionizer mounted to the housing at the upstream end positioned to direct irradiated ions into the housing.Type: GrantFiled: September 21, 2020Date of Patent: December 13, 2022Assignee: Hamilton Sundstrand CorporationInventors: Benjamin D. Gardner, Gary A. Eiceman, Hsien-Chi W. Niu, Peter Fowler
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Publication number: 20210088474Abstract: An ion-mobility spectrometer system includes a housing with an upstream end, a downstream end, and a drift region defined along a longitudinal axis through the housing between the upstream and downstream ends. A first ionizer is operatively connected the housing to supply ions at the upstream end. A second ionizer is operatively connected to the housing to supply ions at the upstream end, wherein the first and second ionizers are both situated upstream of the drift zone relative to an ion flow path through the drift zone. An electric field generator is operatively connected to the housing to drive ions through the drift zone in a direction from the upstream end toward the downstream end. The second ionizer is a radioactive ionizer mounted to the housing at the upstream end positioned to direct irradiated ions into the housing.Type: ApplicationFiled: September 21, 2020Publication date: March 25, 2021Applicant: Hamilton Sundstrand CorporationInventors: Benjamin D. Gardner, Gary A. Eiceman, Hsien-Chi W. Niu, Peter Fowler
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Patent number: 10930485Abstract: An ion mobility spectrometer for analyzing a vapor sample including a multi-ring ion source for receiving a vapor sample, wherein the multi-ring ion source includes a series of rings, wherein each ring of the multi-ring ion source includes an ionizing layer on an inner surface thereof, for charging at least a portion of the vapor sample and creating an ionized vapor sample.Type: GrantFiled: March 25, 2019Date of Patent: February 23, 2021Assignee: Hamilton Sundstrand CorporationInventors: Benjamin D. Gardner, Gary A. Eiceman, Hermann Wollnik
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Publication number: 20200312646Abstract: An ion mobility spectrometer for analyzing a vapor sample including a multi-ring ion source for receiving a vapor sample, wherein the multi-ring ion source includes a series of rings, wherein each ring of the multi-ring ion source includes an ionizing layer on an inner surface thereof, for charging at least a portion of the vapor sample and creating an ionized vapor sample.Type: ApplicationFiled: March 25, 2019Publication date: October 1, 2020Inventors: Benjamin D. Gardner, Gary A. Eiceman, Hermann Wollnik
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Publication number: 20200286723Abstract: An apparatus for detecting constituents in a sample includes first and second drift tubes defining first and second drift regions, and a controllable electric field device within a fragmentation region coupled to the first and second drift tubes. The apparatus also includes a first ion shutter positioned between the first drift and fragmentation regions. The apparatus further includes a control system configured to regulate the first ion shutter, thereby facilitating injection of a selected portion of ions from the first drift region into the fragmentation region. The control system is also configured to regulate the controllable device to modify the selected portion of ions to generate predetermined ion fragments within the fragmentation region, thereby facilitating injection of a selected portion of the predetermined fragmented ions into the second drift region. A method of detecting constituents in a sample is facilitated through such an apparatus.Type: ApplicationFiled: April 7, 2020Publication date: September 10, 2020Inventors: Gary A. Eiceman, Stephen J. Davila, Stefan R. Lukow, Hartwig Schmidt
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Patent number: 10651024Abstract: An apparatus for detecting constituents in a sample includes first and second drift tubes defining first and second drift regions, and a controllable electric field device within a fragmentation region coupled to the first and second drift tubes. The apparatus also includes a first ion shutter positioned between the first drift and fragmentation regions. The apparatus further includes a control system configured to regulate the first ion shutter, thereby facilitating injection of a selected portion of ions from the first drift region into the fragmentation region. The control system is also configured to regulate the controllable device to modify the selected portion of ions to generate predetermined ion fragments within the fragmentation region, thereby facilitating injection of a selected portion of the predetermined fragmented ions into the second drift region. A method of detecting constituents in a sample is facilitated through such an apparatus.Type: GrantFiled: July 10, 2018Date of Patent: May 12, 2020Assignee: Rapiscan Systems, Inc.Inventors: Gary A. Eiceman, Stephen J. Davila, Stefan R. Lukow, Hartwig Schmidt
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Publication number: 20200027713Abstract: An apparatus for detecting constituents in a sample includes first and second drift tubes defining first and second drift regions and a controllable electric field device within a fragmentation region coupled to the first and second drift tubes. The apparatus also includes a first ion shutter positioned between the first drift and fragmentation regions. The apparatus further includes a control system configured to regulate the first ion shutter, thereby facilitating injection of a selected portion of ions from the first drift region into the fragmentation region. The control system is also configured to regulate the controllable device to modify the selected portion of ions to generate predetermined ion fragments within the fragmentation region, thereby facilitating injection of a selected portion of the predetermined fragmented ions into the second drift region. A method of detecting constituents in a sample is facilitated through such an apparatus.Type: ApplicationFiled: May 17, 2019Publication date: January 23, 2020Inventors: Gary A. Eiceman, Stephen J. Davila, Stefan R. Lukow, Hartwig Schmidt
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Publication number: 20200027711Abstract: An apparatus for separating and analyzing ions includes a detector, a planar ion drift tube coupled to the detector and having a width, and a planar ion source. The planar ion source is coupled to the ion drift tube on an end of the ion drift tube opposite the detector and has a span greater than or equal to the width of the ion drift tube to ionize an analyte gas and fragment the analyte gas ions prior to admittance to the ion drift tube. Chemical detectors and methods of chemical detection are also described.Type: ApplicationFiled: July 23, 2018Publication date: January 23, 2020Inventors: Gary Eiceman, Benjamin D. Gardner, Hsien-Chi W. Niu
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Publication number: 20190204274Abstract: A system for multi-stage differential mobility spectrometer (multi-stage DMS) and the method of operating and using the same are described. Ions produced in an ionization source are introduced into the separation region of multi-stage DMS, which includes at least two DMS stages. Each DMS stage is configured to generate separation and compensation fields to characterize, separate, or select ion species. The separation region further includes ion alteration stages which are placed between various adjacent stages of multi-stage DMS. Alteration of ions can be both chemical and physical. Ions which are separated, altered, and selectively passed by all DMS stages of multi-stage DMS are then measured or further characterized by the Faraday plate detectors or a mass spectrometer.Type: ApplicationFiled: December 17, 2018Publication date: July 4, 2019Inventors: Gary A. Eiceman, Marlen R. Menlyadiev, Hartwig Schmidt, Stefan R. Lukow, Peter Fowler, Gyoungil Lee
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Publication number: 20190139752Abstract: An apparatus for detecting constituents in a sample includes first and second drift tubes defining first and second drift regions, and a controllable electric field device within a fragmentation region coupled to the first and second drift tubes. The apparatus also includes a first ion shutter positioned between the first drift and fragmentation regions. The apparatus further includes a control system configured to regulate the first ion shutter, thereby facilitating injection of a selected portion of ions from the first drift region into the fragmentation region. The control system is also configured to regulate the controllable device to modify the selected portion of ions to generate predetermined ion fragments within the fragmentation region, thereby facilitating injection of a selected portion of the predetermined fragmented ions into the second drift region. A method of detecting constituents in a sample is facilitated through such an apparatus.Type: ApplicationFiled: July 10, 2018Publication date: May 9, 2019Inventors: Gary A. Eiceman, Stephen J. Davila, Stefan R. Lukow, Hartwig Schmidt
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Patent number: 10049868Abstract: An apparatus for detecting constituents in a sample includes first and second drift tubes defining first and second drift regions, and a controllable electric field device within a fragmentation region coupled to the first and second drift tubes. The apparatus also includes a first ion shutter positioned between the first drift and fragmentation regions. The apparatus further includes a control system configured to regulate the first ion shutter, thereby facilitating injection of a selected portion of ions from the first drift region into the fragmentation region. The control system is also configured to regulate the controllable device to modify the selected portion of ions to generate predetermined ion fragments within the fragmentation region, thereby facilitating injection of a selected portion of the predetermined fragmented ions into the second drift region. A method of detecting constituents in a sample is facilitated through such an apparatus.Type: GrantFiled: December 6, 2016Date of Patent: August 14, 2018Assignee: Rapiscan Systems, Inc.Inventors: Gary A. Eiceman, Stephen J. Davila, Stefan R. Lukow, Hartwig Schmidt
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Publication number: 20180158665Abstract: An apparatus for detecting constituents in a sample includes first and second drift tubes defining first and second drift regions, and a controllable electric field device within a fragmentation region coupled to the first and second drift tubes. The apparatus also includes a first ion shutter positioned between the first drift and fragmentation regions. The apparatus further includes a control system configured to regulate the first ion shutter, thereby facilitating injection of a selected portion of ions from the first drift region into the fragmentation region. The control system is also configured to regulate the controllable device to modify the selected portion of ions to generate predetermined ion fragments within the fragmentation region, thereby facilitating injection of a selected portion of the predetermined fragmented ions into the second drift region. A method of detecting constituents in a sample is facilitated through such an apparatus.Type: ApplicationFiled: December 6, 2016Publication date: June 7, 2018Inventors: Gary A. Eiceman, Stephen J. Davila, Stefan R. Lukow, Hartwig Schmidt
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Patent number: 9508535Abstract: An ion mobility spectrometer having an ion source for generating ions; an ion detector for recording ions, and a number of substantially flat diaphragm electrodes arranged substantially perpendicular to a straight system axis that passes through the apertures in said diaphragms, with the diaphragms being arranged in a series of cells with each cell including an entrances and an exit diaphragm and a short region in between. The exit diaphragm of one cell is identical to the entrance diaphragm of the next cell, and the cells of said ion mobility spectrometer are grouped into three parts: an ion-beam forming region, an ion analyzing region, and a decelerating ion gate.Type: GrantFiled: March 15, 2012Date of Patent: November 29, 2016Assignee: SHIMADZU CORPORATIONInventors: Hermann Wollnik, Gary A. Eiceman
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Publication number: 20150221489Abstract: An ion mobility spectrometer having an ion source for generating ions; an ion detector for recording ions, and a number of substantially flat diaphragm electrodes arranged substantially perpendicular to a straight system axis that passes through the apertures in said diaphragms, with the diaphragms being arranged in a series of cells with each cell including an entrances and an exit diaphragm and a short region in between. The exit diaphragm of one cell is identical to the entrance diaphragm of the next cell, and the cells of said ion mobility spectrometer are grouped into three parts: an ion-beam forming region, an ion analyzing region, and a decelerating ion gate.Type: ApplicationFiled: March 15, 2012Publication date: August 6, 2015Inventors: Hermann Wollnik, Gary A. Eiceman
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Patent number: 8969795Abstract: A filter for a mass- or mobility-spectrometer that bars gases or vapors of a high-pressure ion source, as well as ions of high mobility and charged droplets, from entering an evacuated mass spectrometer or a mobility spectrometer at a lower pressure than the filter. The buffer gas of the high pressure ion source is blown into the volume of this filter directly or through tubes from where buffer gas and embedded ions are sucked through the aperture of a diaphragm or through an aperture of a capillary mainly from an “extraction volume” filled with a separately supplied clean gas, into which ions of interest are pushed by electric fields formed by electrodes that are substantially rotational symmetric around the “extraction volume” and a substantially flat electrode with respect to an axis of ion extraction and the end of the capillary and the end of a coaxial tube surrounding the capillary.Type: GrantFiled: September 17, 2009Date of Patent: March 3, 2015Assignee: Shimadzu CorporationInventors: Hermann Wollnik, Alexander Tarassov, Gary A. Eiceman
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Patent number: 8592751Abstract: The invention relates generally to ion mobility based systems, methods and devices for analyzing samples and, more particularly, to sample pre-separation and amplification.Type: GrantFiled: November 4, 2010Date of Patent: November 26, 2013Assignee: DH Technologies Development Pte. Ltd.Inventors: Raanan A. Miller, Erkinjon G. Nazarov, Lawrence A. Kaufman, Gary A. Eiceman
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Patent number: 8410432Abstract: A ion mobility-based analyzer system including a first ion mobility-based filter for passing selected ions through a time-varying field where the time-varying field being compensated by an adjustable compensation setting. The analyzer also includes a second ion mobility-based filter for receiving a first portion of ions from the first ion mobility-based filter. The second ion mobility-based filter includes a voltage gradient for separating ions of the first portion of ions where the ions have associated retention times based on their times of flight through the voltage gradient. The second ion mobility-based filter includes a detector for detecting the ions at their retention times. The analyzer system further includes a display that displays the detected ions in a plot relating the retention times of the ions in the second ion mobility-based filter with compensation settings of the first ion mobility-based filter.Type: GrantFiled: August 8, 2011Date of Patent: April 2, 2013Assignee: DH Technologies Development Pte. Ltd.Inventors: Raanan A. Miller, Evgeny Krylova, Erkinjon G. Nazarov, Gary A. Eiceman, John A. Wright