Patents by Inventor Dmitriy Ivashin

Dmitriy Ivashin 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).

  • Chemical trace detection system
    Patent number: 11454610
    Abstract: A chemical trace detection system includes: a drift tube; a detector disposed within the drift tube; a voltage source to produce an electrical field in the drift tube; an ionizer to establish an ionization region adjacent to the electrical field; and a desorber including a sample holder to hold a sample in or adjacent to the ionization region and a sample heater to desorb particles of the sample held in the sample holder such that the desorbed particles are introduced directly into the ionization region from the sample holder to form ionized particles that are forced toward the detector by the electrical field. A regenerable dryer assembly for supplying dry drift gas to an ion mobility spectrometer is also provided that includes a regenerable dessicant material.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: September 27, 2022
    Assignee: Leidos Security Detection & Automation, Inc.
    Inventors: Hacene Boudries, Troy Velazquez, Anatoly Lazarevich, Dmitriy Ivashin, Andrew Anderson
  • CHEMICAL TRACE DETECTION SYSTEM
    Publication number: 20220276202
    Abstract: A chemical trace detection system includes: a drift tube; a detector disposed within the drift tube; a voltage source to produce an electrical field in the drift tube; an ionizer to establish an ionization region adjacent to the electrical field; and a desorber including a sample holder to hold a sample in or adjacent to the ionization region and a sample heater to desorb particles of the sample held in the sample holder such that the desorbed particles are introduced directly into the ionization region from the sample holder to form ionized particles that are forced toward the detector by the electrical field. A regenerable dryer assembly for supplying dry drift gas to an ion mobility spectrometer is also provided that includes a regenerable dessicant material.
    Type: Application
    Filed: April 25, 2022
    Publication date: September 1, 2022
    Inventors: Hacene Boudries, Troy Velazquez, Anatoly Lazarevich, Dmitriy Ivashin, Andrew Anderson
  • Chemical trace detection system
    Patent number: 11313833
    Abstract: A chemical trace detection system includes: a drift tube; a detector disposed within the drift tube; a voltage source to produce an electrical field in the drift tube; an ionizer to establish an ionization region adjacent to the electrical field; and a desorber including a sample holder to hold a sample in or adjacent to the ionization region and a sample heater to desorb particles of the sample held in the sample holder such that the desorbed particles are introduced directly into the ionization region from the sample holder to form ionized particles that are forced toward the detector by the electrical field. A regenerable dryer assembly for supplying dry drift gas to an ion mobility spectrometer is also provided that includes a regenerable desiccant material.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: April 26, 2022
    Assignee: Leidos Security Detection & Automation, Inc.
    Inventors: Hacene Boudries, Troy Velazquez, Anatoly Lazarevich, Dmitriy Ivashin, Andrew Anderson
  • CHEMICAL TRACE DETECTION SYSTEM
    Publication number: 20200284757
    Abstract: A chemical trace detection system includes: a drift tube; a detector disposed within the drift tube; a voltage source to produce an electrical field in the drift tube; an ionizer to establish an ionization region adjacent to the electrical field; and a desorber including a sample holder to hold a sample in or adjacent to the ionization region and a sample heater to desorb particles of the sample held in the sample holder such that the desorbed particles are introduced directly into the ionization region from the sample holder to form ionized particles that are forced toward the detector by the electrical field. A regenerable dryer assembly for supplying dry drift gas to an ion mobility spectrometer is also provided that includes a regenerable dessicant material.
    Type: Application
    Filed: May 21, 2020
    Publication date: September 10, 2020
    Inventors: Hacene Boudries, Troy Velazquez, Anatoly Lazarevich, Dmitriy Ivashin, Andrew Anderson
  • CHEMICAL TRACE DETECTION SYSTEM
    Publication number: 20200072791
    Abstract: A chemical trace detection system includes: a drift tube; a detector disposed within the drift tube; a voltage source to produce an electrical field in the drift tube; an ionizer to establish an ionization region adjacent to the electrical field; and a desorber including a sample holder to hold a sample in or adjacent to the ionization region and a sample heater to desorb particles of the sample held in the sample holder such that the desorbed particles are introduced directly into the ionization region from the sample holder to form ionized particles that are forced toward the detector by the electrical field. A regenerable dryer assembly for supplying dry drift gas to an ion mobility spectrometer is also provided that includes a regenerable dessicant material.
    Type: Application
    Filed: August 31, 2018
    Publication date: March 5, 2020
    Inventors: Hacene Boudries, Troy Velazquez, Anatoly Lazarevich, Dmitriy Ivashin, Andrew Anderson