Patents by Inventor Michael Arthur Quilliam

Michael Arthur Quilliam 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).

  • Retention index standards for liquid chromatography
    Patent number: 10228356
    Abstract: A liquid chromatography method for identifying an analyte of interest utilizing as retention index standards a homologous series of neutrally charged compounds having at least one functional group bearing a positive charge and at least one functional group bearing a negative charge. The method is especially useful for liquid chromatography-mass spectrometry (LC-MS) methods, more especially for LC-MS methods employing electrospray (ESI) or atmospheric pressure chemical ionization (APCI) ionization systems.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: March 12, 2019
    Assignee: National Research Council of Canada
    Inventor: Michael Arthur Quilliam
  • RETENTION INDEX STANDARDS FOR LIQUID CHROMATOGRAPHY
    Publication number: 20170102367
    Abstract: A liquid chromatography method for identifying an analyte of interest utilizing as retention index standards a homologous series of neutrally charged compounds having at least one functional group bearing a positive charge and at least one functional group bearing a negative charge. The method is especially useful for liquid chromatography-mass spectrometry (LC-MS) methods, more especially for LC-MS methods employing electrospray (ESI) or atmospheric pressure chemical ionization (APCI) ionization systems.
    Type: Application
    Filed: December 22, 2016
    Publication date: April 13, 2017
    Applicant: NATIONAL RESEARCH COUNCIL OF CANADA
    Inventor: Michael Arthur QUILLIAM
  • Retention index standards for liquid chromatography
    Patent number: 9594063
    Abstract: A homologous series of neutrally charged compounds having at least one functional group bearing a positive charge and at least one functional group bearing a negative charge are advantageous retention index standards for liquid chromatography, especially for liquid chromatography-mass spectrometry (LC-MS) methods, more especially for LC-MS methods employing electrospray (ESI) or atmospheric pressure chemical ionization (APCI) ionization systems.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 14, 2017
    Assignee: National Research Council of Canada
    Inventor: Michael Arthur Quilliam
  • RETENTION INDEX STANDARDS FOR LIQUID CHROMATOGRAPHY
    Publication number: 20150140593
    Abstract: A homologous series of neutrally charged compounds having at least one functional group bearing a positive charge and at least one functional group bearing a negative charge are advantageous retention index standards for liquid chromatography, especially for liquid chromatography-mass spectrometry (LC-MS) methods, more especially for LC-MS methods employing electrospray (ESI) or atmospheric pressure chemical ionization (APCI) ionization systems.
    Type: Application
    Filed: March 15, 2013
    Publication date: May 21, 2015
    Inventor: Michael Arthur Quilliam