Patents by Inventor David Clemmer

David Clemmer 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).

  • Method for characterizing polysaccharides
    Patent number: 10845337
    Abstract: A method for a structural characterization of polysaccharides, comprising steps of characterizing a polysaccharide by physical measurements comprising a determination of a mass of the polysaccharide by means of mass spectrometry, a further determination of a rotationally averaged cross section of the polysaccharide by means of ion mobility spectrometry, and an infrared spectrum of the polysaccharide by means of cryogenic, messenger-tagging IR spectroscopy.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: November 24, 2020
    Assignees: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL), INDIANA UNIVERSITY RESEARCH AND TECHNOLOGY CORPORATION
    Inventors: Thomas Rizzo, Chiara Masellis, Michael Zachary Kamrath, David Clemmer, Neelam Khanal
  • A METHOD FOR CHARACTERIZING POLYSACCHARIDES
    Publication number: 20190204272
    Abstract: A method for a structural characterization of polysaccharides, comprising steps of characterizing a polysaccharide by physical measurements comprising a determination of a mass of the polysaccharide by means of mass spectrometry, a further determination of a rotationally averaged cross section of the polysaccharide by means of ion mobility spectrometry, and an infrared spectrum of the polysaccharide by means of cryogenic, messenger-tagging IR spectroscopy.
    Type: Application
    Filed: August 29, 2017
    Publication date: July 4, 2019
    Inventors: Thomas RIZZO, Chiara MASELLIS, Michael Zachary KAMRATH, David CLEMMER, Neelam KHANAL
  • Ion mobility spectrometer
    Publication number: 20070114382
    Abstract: An ion mobility spectrometer comprises a drift tube defining a drift tube inlet configured to receive ions and a drift tube outlet. The drift tube is configured to separate ions in time as a function of ion mobility. The drift tube defines a first ion activation region between the drift tube inlet and the drift tube outlet. The first ion activation region is configured to selectively induce structural changes in at least some of the ions.
    Type: Application
    Filed: November 23, 2005
    Publication date: May 24, 2007
    Inventors: David Clemmer, Stormy Koeniger, Stephen Valentine