Patents by Inventor Evan Nguyen

Evan 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: 20240404818
    Abstract: Disclosed herein is a method of preparing macromolecular structures for analysis, including placing a macromolecular sample on a surface acoustic wave (SAW) device including: a piezoelectric surface, a first transducer in contact with the piezoelectric surface, a second transducer in contact with the piezoelectric surface, and a sample region disposed between the first transducer and the second transducer and configured to receive the macromolecular sample, the sample region configured to remain electrically isolated from each of the first transducer and the second transducer; applying disruption electrical energy, having a disruption frequency and a disruption power, to each of the first transducer and the second transducer to transform the macromolecular sample into a disrupted macromolecular sample; and applying nebulization electrical energy, comprising a nebulization frequency and a nebulization power, to each of the first transducer and the second transducer, to transform the disrupted macromolecular sa
    Type: Application
    Filed: June 3, 2024
    Publication date: December 5, 2024
    Inventors: Theresa Evans-Nguyen, Venkat Rama Bhethanabotla, Ashton Taylor, Yuqi Huang, Cheyenne Sircher
  • Patent number: 12148606
    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: Grant
    Filed: October 13, 2020
    Date of Patent: November 19, 2024
    Assignee: University of South Florida
    Inventors: Theresa Evans-Nguyen, Linxia Song, Yi You
  • 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: 11499941
    Abstract: A flexible eddy current probe for non-destructive testing of a metallic object may include one or more plus-point coils and a flexible printed circuit having first and second parallel sides, third and fourth parallel sides, and a number of adjacent strips. The strips have first and second ends that are contiguous with the first and second parallel sides, respectively. Each of the strips may contain a pair of coils oriented along the length of the strip, a first coil being proximate to the first end and a second coil being proximate to the second end, and each of the coils is configured to excite an eddy current in the metal object or to sense an eddy current. Each of the strips may also be independently flexible from one another. The eddy current sensor array is configured to be scanned over the metal object.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: November 15, 2022
    Assignee: Zetec, Inc.
    Inventors: Steve Timm, Evan Lloyd, Tom O'Dell, Bill Ziegenhagen, Evans Nguyen
  • Publication number: 20200191748
    Abstract: An flexible eddy current probe for non-destructive testing of a metallic object, the probe having a flexible printed circuit containing eddy current drive and sense coils and one or more plus-point coil pairs arranged for inspection of the toe area of a raised bead weld.
    Type: Application
    Filed: December 11, 2019
    Publication date: June 18, 2020
    Inventors: Steve Timm, Evan Lloyd, Tom O'Dell, Bill Ziegenhagen, Evans Nguyen
  • 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
  • Patent number: 8164520
    Abstract: A Master Antenna Controller is provided comprising a RET Master which may replace several devices, provide full RET control based on the AISG 1.1 and 2.0 standards, provide extensive, screen-guided, intuitive RET diagnostics functionality, and provide an alignment tool free from the problems of magnetic deviation and cumbersome differential GPS antennae. The RET diagnostics functionality may include measurements of voltage, current, and AISG protocol commands. The RET Master may also include multiple different pre-defined tests (e.g. test one actuator, test one RET cable, test AISG signal from TMA) and also some standard electrical tests, e.g. measuring voltage, current etc. Users will be guided on the screen about how to test and what steps to do and the software will guide the user through several steps for an easy and quick trouble-shooting process.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: April 24, 2012
    Assignee: Andrew LLC
    Inventors: Holger Raeder, Philip Sorrells, Bobby Webb, Paul Lentz, Matthew D. Ferris, Evan Nguyen
  • Publication number: 20110136692
    Abstract: The present invention relates to the use of mass spectrometry to analyze arrays. The present invention provides methods for characterizing solutions comprising one or more proteins using arrays and mass spectrometry. The arrays of the present invention are coated with porous gold and utilize hydrophobic and hydrophilic self-assembled monolayers.
    Type: Application
    Filed: February 19, 2009
    Publication date: June 9, 2011
    Applicant: The Johns Hopkins University
    Inventors: Robert James Cotter, Kenyon Mclane Evans-Nguyen, Heng Zhu, Sheng-Ce Tao
  • Publication number: 20110090118
    Abstract: A Master Antenna Controller is provided comprising a RET Master which may replace several devices, provide full RET control based on the AISG 1.1 and 2.0 standards, provide extensive, screen-guided, intuitive RET diagnostics functionality, and provide an alignment tool free from the problems of magnetic deviation and cumbersome differential GPS antennae. The RET diagnostics functionality may include measurements of voltage, current, and AISG protocol commands. The RET Master may also include multiple different pre-defined tests (e.g. test one actuator, test one RET cable, test AISG signal from TMA) and also some standard electrical tests, e.g. measuring voltage, current etc. Users will be guided on the screen about how to test and what steps to do and the software will guide the user through several steps for an easy and quick trouble-shooting process.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 21, 2011
    Applicant: Andrew LLC
    Inventors: Holger RAEDER, Philip Sorrells, Bobby Webb, Paul Lentz, Matthew D. Ferris, Evan Nguyen