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).

  • Patent number: 11435290
    Abstract: 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: Grant
    Filed: July 2, 2021
    Date of Patent: September 6, 2022
    Assignee: Applied Spectra, Inc
    Inventors: Alexander A. Bol'shakov, Chunyi Liu, Jong Hyun Yoo, Sudeep J. Pandey, Richard E. Russo, Randolph S. Tribe
  • Publication number: 20210341392
    Abstract: 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: Application
    Filed: July 2, 2021
    Publication date: November 4, 2021
    Applicant: Applied Spectra, Inc.
    Inventors: Alexander A. Bol'shakov, Chunyi Liu, Jong Hyun Yoo, Sudeep J. Pandey, Richard E. Russo, Randolph S. Tribe
  • Patent number: 10393587
    Abstract: 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: Grant
    Filed: July 3, 2016
    Date of Patent: August 27, 2019
    Assignee: Applied Spectra, Inc.
    Inventors: Jong Hyun Yoo, Randolph S. Tribe, Chunyi Liu
  • Patent number: 10222337
    Abstract: 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: Grant
    Filed: April 14, 2017
    Date of Patent: March 5, 2019
    Assignee: Applied Spectra, Inc.
    Inventors: Jong Hyun Yoo, Chunyi Liu, Alexander A. Bol'shakov, Richard E. Russo, Xianglei Mao, Randolph S. Tribe, Osman Sorkhabi
  • Patent number: 9383260
    Abstract: 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: Grant
    Filed: June 10, 2012
    Date of Patent: July 5, 2016
    Assignee: Applied Spectra, Inc.
    Inventors: Jong Huyn Yoo, Randolph S. Tribe, Chunyi Liu
  • Patent number: 8199321
    Abstract: 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: Grant
    Filed: May 5, 2009
    Date of Patent: June 12, 2012
    Assignee: Applied Spectra, Inc.
    Inventors: Jong Hyun Yoo, Randolph S. Tribe, Chunyi Liu
  • Publication number: 20090273782
    Abstract: 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: Application
    Filed: May 5, 2009
    Publication date: November 5, 2009
    Applicant: APPLIED SPECTRA, INC.
    Inventors: Jong Hyun Yoo, Randolph S. Tribe, Chunyi Liu