Patents by Inventor Vladimir Kekukh

Vladimir Kekukh 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).

  • Pulsed ultraviolet ion source
    Patent number: 7820979
    Abstract: A system and method for providing a pulsed atmospheric source of ions for chemical analysis includes a chamber containing a pair of electrodes and a second chamber with the sample gas. A narrow pulse of high voltage is applied between the electrodes to form an arc which emits ultraviolet light directly into the sample gas chamber through an aperture connecting the chambers. The ultraviolet photons ionize the sample gas and the resultant sample gas ions are then swept into a chemical detector by an electric field.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: October 26, 2010
    Assignee: Implant Sciences Corporation
    Inventors: Vladimir V. Belyakov, Vladimir Kekukh, Anatoly Lazarevich, Stephen N. Bunker
  • Chemical calibration method and system
    Patent number: 7709788
    Abstract: An explosive and narcotics detection system using an ion mobility spectrometer detects the presence of vapor or trace particles of target chemicals. The calibration of the spectrometer depends in part on the stability of a calibrant chemical that may be periodically injected together with sample gas into the ionization region of the spectrometer. The calibrant chemical produces a signal with a drift time that is known relative to target chemicals and may be used to calibrate the expected target chemical drift times. A new calibrant chemical, 5-nitrovanillin, is disclosed for this purpose.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: May 4, 2010
    Assignee: Implant Sciences Corporation
    Inventors: Edward Geraghty, Vladimir Kekukh, Stephen N. Bunker
  • Pulsed ultraviolet ion source
    Publication number: 20090272896
    Abstract: A system and method for providing a pulsed atmospheric source of ions for chemical analysis includes a chamber containing a pair of electrodes and a second chamber with the sample gas. A narrow pulse of high voltage is applied between the electrodes to form an arc which emits ultraviolet light directly into the sample gas chamber through an aperture connecting the chambers. The ultraviolet photons ionize the sample gas and the resultant sample gas ions are then swept into a chemical detector by an electric field.
    Type: Application
    Filed: May 5, 2008
    Publication date: November 5, 2009
    Inventors: Vladimir V. Belyakov, Vladimir Kekukh, Anatoly Lazarevich, Stephen N. Bunker
  • Chemical calibration method and system
    Publication number: 20090166524
    Abstract: An explosive and narcotics detection system using an ion mobility spectrometer detects the presence of vapor or trace particles of target chemicals. The calibration of the spectrometer depends in part on the stability of a calibrant chemical that may be periodically injected together with sample gas into the ionization region of the spectrometer. The calibrant chemical produces a signal with a drift time that is known relative to target chemicals and may be used to calibrate the expected target chemical drift times. A new calibrant chemical, 5-nitrovanillin, is disclosed for this purpose.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 2, 2009
    Inventors: Edward Geraghty, Vladimir Kekukh, Stephen N. Bunker