Patents by Inventor Theresa Evans-Nguyen

Theresa Evans-Nguyen 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).

  • Publication number: 20240096610
    Abstract: Provided herein are systems and methods for sampling analytes into an atmospheric pressure inlet mass spectrometer using ultrasonic nebulization-assisted atmospheric pressure chemical ionization. The systems can include a mass spectrometer having an input and an ultrasonic nebulizer chip. The ultrasonic nebulizer chip can be operatively coupled to the mass spectrometer, such that when the ultrasonic nebulizer chip nebulizes the analyte to provide a nebulized analyte, at least some of the nebulized analyte enters the input of the mass spectrometer.
    Type: Application
    Filed: October 13, 2020
    Publication date: March 21, 2024
    Inventors: Theresa Evans-Nguyen, Linxia SONG, Yi YOU
  • Patent number: 9190258
    Abstract: The present disclosure discusses a system and method for continuous operation of an ion trap mass spectrometer. The described system does not introduce ions into the ion trap in distinct trapping phase, rather the described system continuously injects ions into the ion trap while continuously scanning out the ions. The system and method described herein achieves a much higher duty cycle and cycle rate when compared to standard mass spectrometer devices.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: November 17, 2015
    Assignees: The Charles Stark Draper Laboratory, Inc., Johns Hopkins University School of Medicine, Mini-Mass Counseling
    Inventors: Theresa Evans-Nguyen, Di Wang, Friso Van Amerom
  • Publication number: 20150034820
    Abstract: The present disclosure discusses a system and method for continuous operation of an ion trap mass spectrometer. The described system does not introduce ions into the ion trap in distinct trapping phase, rather the described system continuously injects ions into the ion trap while continuously scanning out the ions. The system and method described herein achieves a much higher duty cycle and cycle rate when compared to standard mass spectrometer devices.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 5, 2015
    Inventors: Theresa Evans-Nguyen, Di Wang, Friso Van Amerom