Patents by Inventor Randolph S. Tribe
Randolph S. Tribe 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: 11435290Abstract: Methods for laser induced ablation spectroscopy (LIBS) are disclosed. Light from laser ablation can be gathered into a lightguide fiber bundle that is subdivided into branches. One branch can convey a first portion of the light to a broadband spectrometer operable to analyze a relatively wide spectral segment, and a different branch can convey a second portion of the light to a high dispersion spectrometer operable to measure minor concentrations and/or trace elements. Emissions can be analyzed using a plurality of spectrometers having distinct and/or complementary capabilities, and with a synergistic method using inductively coupled plasma mass spectrometry.Type: GrantFiled: July 2, 2021Date of Patent: September 6, 2022Assignee: Applied Spectra, IncInventors: Alexander A. Bol'shakov, Chunyi Liu, Jong Hyun Yoo, Sudeep J. Pandey, Richard E. Russo, Randolph S. Tribe
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Publication number: 20210341392Abstract: Methods for laser induced ablation spectroscopy (LIBS) are disclosed. Light from laser ablation can be gathered into a lightguide fiber bundle that is subdivided into branches. One branch can convey a first portion of the light to a broadband spectrometer operable to analyze a relatively wide spectral segment, and a different branch can convey a second portion of the light to a high dispersion spectrometer operable to measure minor concentrations and/or trace elements. Emissions can be analyzed using a plurality of spectrometers having distinct and/or complementary capabilities, and with a synergistic method using inductively coupled plasma mass spectrometry.Type: ApplicationFiled: July 2, 2021Publication date: November 4, 2021Applicant: Applied Spectra, Inc.Inventors: Alexander A. Bol'shakov, Chunyi Liu, Jong Hyun Yoo, Sudeep J. Pandey, Richard E. Russo, Randolph S. Tribe
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Patent number: 10393587Abstract: Methods for laser induced ablation spectroscopy are disclosed. A sample site position sensor, and stage position motors can move the stage in three independent spatial coordinate directions, and a stage position control circuit is used to move an analysis sample site to selected coordinate positions for laser ablation. Light emitted from a plasma plume produced with laser ablation can be gathered into a lightguide fiber bundle that is subdivided into branches. One branch can convey a first portion of the light to a broadband spectrometer operable to analyze a relatively wide spectral segment, and a different branch can convey a second portion of the light to a high dispersion spectrometer operable to measure minor concentrations and/or trace elements. Emissions from a plasma plume can be simultaneously analyzed in various ways using a plurality of spectrometers having distinct and/or complementary capabilities.Type: GrantFiled: July 3, 2016Date of Patent: August 27, 2019Assignee: Applied Spectra, Inc.Inventors: Jong Hyun Yoo, Randolph S. Tribe, Chunyi Liu
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Patent number: 10222337Abstract: Methods for laser induced ablation spectroscopy are disclosed. A position sensor, and position motors can move a sample stage in three independent spatial coordinate directions, and a stage position control circuit can move an analysis sample site to selected coordinate positions for ablation. Light from laser ablation can be gathered into a lightguide fiber bundle that is subdivided into branches. One branch can convey a first portion of the light to a broadband spectrometer operable to analyze a relatively wide spectral segment, and a different branch can convey a second portion of the light to a high dispersion spectrometer operable to measure minor concentrations and/or trace elements. Emissions can be simultaneously analyzed in various ways using a plurality of spectrometers having distinct and/or complementary capabilities, and isotope analysis of a sample can be performed.Type: GrantFiled: April 14, 2017Date of Patent: March 5, 2019Assignee: Applied Spectra, Inc.Inventors: Jong Hyun Yoo, Chunyi Liu, Alexander A. Bol'shakov, Richard E. Russo, Xianglei Mao, Randolph S. Tribe, Osman Sorkhabi
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Patent number: 9383260Abstract: Systems, methods, compositions, and apparatus for laser induced ablation spectroscopy are disclosed. A sample site position sensor, stage position motors operable to move the stage in three independent spatial coordinate directions, and a stage position control circuit can move an analysis sample site to selected coordinate positions for laser ablation. Light emitted from a plasma plume produced with laser ablation can be gathered into a lightguide fiber bundle that is subdivided into branches. One branch can convey a first portion of the light to a broadband spectrometer operable to analyze a relatively wide spectral segment, and a different branch can convey a second portion of the light to a high dispersion spectrometer operable to measure minor concentrations and/or trace elements. Emissions from a plasma plume can be simultaneously analyzed in various ways using a plurality of spectrometers having distinct and/or complementary capabilities.Type: GrantFiled: June 10, 2012Date of Patent: July 5, 2016Assignee: Applied Spectra, Inc.Inventors: Jong Huyn Yoo, Randolph S. Tribe, Chunyi Liu
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Patent number: 8199321Abstract: Provided is a laser ablation spectroscopy apparatus and method. A pulse laser is focused on the sample site to generate a plasma plume during a laser ablation process. The plasma plume is detected with a spectrometer and an intensified charge coupled device. A sample of material is coupled to a stage movable in the x, y and z directions using an array of x-y-z motors. A change in the height of the sample is detected using a triangulation sensor. The apparatus includes a system computer for synchronizing the movement of the stage in the x, y and z direction during the laser ablation process. The method includes a protocol of generating one or more laser ablations per sample site. The spectral data of the total number of laser ablations for each sample site are averaged together. The protocol includes laser ablating additional sample sites and averaging the spectral data of the total number of sample sites.Type: GrantFiled: May 5, 2009Date of Patent: June 12, 2012Assignee: Applied Spectra, Inc.Inventors: Jong Hyun Yoo, Randolph S. Tribe, Chunyi Liu
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Publication number: 20090273782Abstract: Provided is a laser ablation spectroscopy apparatus and method. A pulse laser is focused on the sample site to generate a plasma plume during a laser ablation process. The plasma plume is detected with a spectrometer and an intensified charge coupled device. A sample of material is coupled to a stage movable in the x, y and z directions using an array of x-y-z motors. A change in the height of the sample is detected using a triangulation sensor. The apparatus includes a system computer for synchronizing the movement of the stage in the x, y and z direction during the laser ablation process. The method includes a protocol of generating one or more laser ablations per sample site. The spectral data of the total number of laser ablations for each sample site are averaged together. The protocol includes laser ablating additional sample sites and averaging the spectral data of the total number of sample sites.Type: ApplicationFiled: May 5, 2009Publication date: November 5, 2009Applicant: APPLIED SPECTRA, INC.Inventors: Jong Hyun Yoo, Randolph S. Tribe, Chunyi Liu