Patents by Inventor Mark Philip Longson

Mark Philip Longson 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: 8704171
    Abstract: A system and methods are described for generating reagent ions and product ions for use in a mass spectrometry system. Applications for the system and method are also disclosed for detecting volatile organic compounds in trace concentrations. A microwave or high-frequency RF energy source ionizes particles of a reagent vapor to form reagent ions. The reagent ions enter a chamber, such as a drift chamber, to interact with a fluid sample. An electric field directs the reagent ions and facilitates an interaction with the fluid sample to form product ions. The reagent ions and product ions then exit the chamber under the influence of an electric field for detection by a mass spectrometer module. The system includes various control modules for setting values of system parameters and analysis modules for detection of mass and peak intensity values for ion species during spectrometry and faults within the system.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: April 22, 2014
    Assignee: MKS Instruments, Inc.
    Inventors: Timothy Roger Robinson, Mark Attwood, Xing Chen, William M. Holber, Mark Philip Longson, Jonathan Henry Palk, Ali Shajii, John A. Smith
  • Patent number: 8334505
    Abstract: A system and methods are described for generating reagent ions and product ions for use in a mass spectrometry system. Applications for the system and method are also disclosed for detecting volatile organic compounds in trace concentrations. A microwave or high-frequency RF energy source ionizes particles of a reagent vapor to form reagent ions. The reagent ions enter a chamber, such as a drift chamber, to interact with a fluid sample. An electric field directs the reagent ions and facilitates an interaction with the fluid sample to form product ions. The reagent ions and product ions then exit the chamber under the influence of an electric field for detection by a mass spectrometer module. The system includes various control modules for setting values of system parameters and analysis modules for detection of mass and peak intensity values for ion species during spectrometry and faults within the system.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: December 18, 2012
    Assignee: MKS Instruments, Inc.
    Inventors: Timothy Roger Robinson, Mark Attwood, Xing Chen, William M. Holber, Mark Philip Longson, Jonathan Henry Palk, Ali Shajii, John A. Smith
  • Publication number: 20120003748
    Abstract: A system and methods are described for generating reagent ions and product ions for use in a mass spectrometry system. Applications for the system and method are also disclosed for detecting volatile organic compounds in trace concentrations. A microwave or high-frequency RF energy source ionizes particles of a reagent vapor to form reagent ions. The reagent ions enter a chamber, such as a drift chamber, to interact with a fluid sample. An electric field directs the reagent ions and facilitates an interaction with the fluid sample to form product ions. The reagent ions and product ions then exit the chamber under the influence of an electric field for detection by a mass spectrometer module. The system includes various control modules for setting values of system parameters and analysis modules for detection of mass and peak intensity values for ion species during spectrometry and faults within the system.
    Type: Application
    Filed: February 6, 2008
    Publication date: January 5, 2012
    Applicant: MKS Instruments, Inc.
    Inventors: Timothy Roger Robinson, Mark Attwood, Xing Chen, William M. Holber, Mark Philip Longson, Jonathan Henry Palk, Ali Shajii, John A. Smith
  • Patent number: 8003935
    Abstract: A system and methods are described for generating reagent ions and product ions for use in a quadruple mass spectrometry system. A microwave or high-frequency RF energy source ionizes particles of a reagent vapor to form reagent ions. The reagent ions enter a chamber, such as a drift chamber, to interact with a fluid sample. An electric field directs the reagent ions and facilitates an interaction with the fluid sample to form product ions. The reagent ions and product ions then exit the chamber under the influence of an electric field for detection by a quadruple mass spectrometer module. The system includes various control modules for setting values of system parameters and analysis modules for detection of mass values for ion species during spectrometry and faults within the system.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: August 23, 2011
    Assignee: MKS Instruments, Inc.
    Inventors: Timothy Roger Robinson, Mark Attwood, Xing Chen, William M. Holber, Mark Philip Longson, Jonathan Henry Palk, Ali Shajii, John A. Smith
  • Patent number: 8003936
    Abstract: A system, components thereof, and methods are described for time-of-flight mass spectrometry. A microwave or high-frequency RF energy source is used to ionize a reagent vapor to form reagent ions. The reagent ions enter a chamber and interact with a fluid sample to form product ions. The reagent ions and product ions are directed to a time-of-flight mass spectrometer module for detection and determination of a mass value for the ions. The time-of-flight mass spectrometer module can include an optical system and an ion beam adjuster for focusing, interrupting, or altering a flow of reagent and product ions according to a specified pattern. The time-of-flight mass spectrometer module can include signal processing techniques to collect and analyze an acquired signal, for example, using statistical signal processing, such as maximum likelihood signal processing.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: August 23, 2011
    Assignee: MKS Instruments, Inc.
    Inventors: Timothy Roger Robinson, Mark Attwood, Xing Chen, William M. Holber, Mark Philip Longson, Jonathan Henry Palk, Ali Shajii, John A. Smith
  • Publication number: 20090095901
    Abstract: A system and methods are described for generating reagent ions and product ions for use in a quadrupole mass spectrometry system. A microwave or high-frequency RF energy source ionizes particles of a reagent vapor to form reagent ions. The reagent ions enter a chamber, such as a drift chamber, to interact with a fluid sample. An electric field directs the reagent ions and facilitates an interaction with the fluid sample to form product ions. The reagent ions and product ions then exit the chamber under the influence of an electric field for detection by a quadrupole mass spectrometer module. The system includes various control modules for setting values of system parameters and analysis modules for detection of mass values for ion species during spectrometry and faults within the system.
    Type: Application
    Filed: October 10, 2007
    Publication date: April 16, 2009
    Applicant: MKS Instruments, Inc.
    Inventors: Timothy Roger Robinson, Mark Attwood, Xing Chen, William M. Holber, Mark Philip Longson, Jonathan Henry Palk, Ali Shajii, John A. Smith
  • Publication number: 20090095902
    Abstract: A system, components thereof, and methods are described for time-of-flight mass spectrometry. A microwave or high-frequency RF energy source is used to ionize a reagent vapor to form reagent ions. The reagent ions enter a chamber and interact with a fluid sample to form product ions. The reagent ions and product ions are directed to a time-of-flight mass spectrometer module for detection and determination of a mass value for the ions. The time-of-flight mass spectrometer module can include an optical system and an ion beam adjuster for focusing, interrupting, or altering a flow of reagent and product ions according to a specified pattern. The time-of-flight mass spectrometer module can include signal processing techniques to collect and analyze an acquired signal, for example, using statistical signal processing, such as maximum likelihood signal processing.
    Type: Application
    Filed: October 10, 2007
    Publication date: April 16, 2009
    Applicant: MKS Instruments, Inc.
    Inventors: TIMOTHY ROGER ROBINSON, Mark Attwood, Xing Chen, William M. Holber, Mark Philip Longson, Jonathan Henry Palk, Ali Shajii, John A. Smith