Patents by Inventor Deven L. SHINHOLT

Deven L. SHINHOLT 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: 10886118
    Abstract: A magnet assembly for an ion source comprising a first magnet of a first magnet type; a second magnet of a second magnet type; a heat shield located between the first magnet and the second magnet; and a heat sink coupled to the heat shield; wherein the first magnet type having a higher Curie temperature than the second magnet type.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: January 5, 2021
    Assignee: Thermo Finnigan LLC
    Inventors: Edward B. McCauley, Deven L. Shinholt
  • Patent number: 10490396
    Abstract: A magnet assembly for an ion source comprising a first magnet of a first magnet type; a second magnet of a second magnet type; a heat shield located between the first magnet and the second magnet; and a heat sink coupled to the heat shield; wherein the first magnet type having a higher Curie temperature than the second magnet type.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: November 26, 2019
    Assignee: Thermo Finnigan LLC
    Inventors: Edward B. McCauley, Deven L. Shinholt
  • Patent number: 10366872
    Abstract: A quadrupole mass filter and method for operating the filter are described. Sample ions, each having a mass-to-charge ratio, are passed to a quadrupole at least one AC voltage is applied thereto to separate the ions by incrementally varying a frequency of the at least one AC voltage within a first range of frequencies and, for each of at least some of the incremental frequencies in the first range of frequencies, incrementally varying an amplitude of the at least one AC voltage within a range of amplitudes, wherein each incremental frequency and incremental amplitude pair of the at least one AC voltage creates a different band pass filter in the quadrupole through which produced ions having a different corresponding mass-to-charge ratio pass to a detector.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: July 30, 2019
    Assignee: The Trustees of Indiana University
    Inventors: Martin F. Jarrold, Deven L. Shinholt, Staci N. Anthony, Andrew W. Alexander
  • Publication number: 20190164739
    Abstract: A quadrupole mass filter and method for operating the filter are described. Sample ions, each having a mass-to-charge ratio, are passed to a quadrupole at least one AC voltage is applied thereto to separate the ions by incrementally varying a frequency of the at least one AC voltage within a first range of frequencies and, for each of at least some of the incremental frequencies in the first range of frequencies, incrementally varying an amplitude of the at least one AC voltage within a range of amplitudes, wherein each incremental frequency and incremental amplitude pair of the at least one AC voltage creates a different band pass filter in the quadrupole through which produced ions having a different corresponding mass-to-charge ratio pass to a detector.
    Type: Application
    Filed: January 31, 2019
    Publication date: May 30, 2019
    Inventors: Martin F. Jarrold, Deven L. Shinholt, Staci N. Anthony, Andrew W. Alexander
  • Patent number: 10211040
    Abstract: A quadrupole mass filter and method for operating the filter are described. AC voltages are applied to the quadrupole to separate ions based on mass-to-charge ratio. Frequency is scanned with a simultaneous amplitude scan. Ions are measured over a broad m/z range with high resolution. A resolving power of about 1,200 was demonstrated. Ions were observed for m/z values over 150,000 Th.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: February 19, 2019
    Assignee: The Trustees of Indiana University
    Inventors: Martin F. Jarrold, Deven L. Shinholt, Staci N. Anthony, Andrew W. Alexander
  • Publication number: 20180277350
    Abstract: A quadrupole mass filter and method for operating the filter are described. AC voltages are applied to the quadrupole to separate ions based on mass-to-charge ratio. Frequency is scanned with a simultaneous amplitude scan. Ions are measured over a broad m/z range with high resolution. A resolving power of about 1,200 was demonstrated. Ions were observed for m/z values over 150,000 Th.
    Type: Application
    Filed: November 6, 2015
    Publication date: September 27, 2018
    Inventors: Martin F. JARROLD, Deven L. SHINHOLT, Staci N. ANTHONY, Andrew W. ALEXANDER