Patents by Inventor Karena W. Chapman

Karena W. Chapman 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).

  • Transmission-geometry electrochemical cell for in-situ scattering and spectroscopy investigations
    Patent number: 9022652
    Abstract: The present invention relates to a test chamber that can be used to perform a variety of X-ray and neutron spectroscopy experiments including powder diffraction, small-angle scattering, X-ray absorption spectroscopy, and pair distribution functions, such chamber comprising a first electrode with an X-ray transparent window; a second electrode with an X-ray transparent window; a plurality of insulating gaskets providing a hermetic seal around the sample and preventing contact between said first and second electrodes; and an insulating housing into which the first electrode is secured.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: May 5, 2015
    Assignee: UChicago Argonne, LLC
    Inventors: Peter J. Chupas, Karena W. Chapman, Charles A. Kurtz, Olaf J. Borkiewicz, Kamila Magdelena Wiaderek, Badri Shyam
  • TRANSMISSION-GEOMETRY ELECTROCHEMICAL CELL FOR IN-SITU SCATTERING AND SPECTROSCOPY INVESTIGATIONS
    Publication number: 20140093052
    Abstract: The present invention relates to a test chamber that can be used to perform a variety of X-ray and neutron spectroscopy experiments including powder diffraction, small-angle scattering, X-ray absorption spectroscopy, and pair distribution functions, such chamber comprising a first electrode with an X-ray transparent window; a second electrode with an X-ray transparent window; a plurality of insulating gaskets providing a hermetic seal around the sample and preventing contact between said first and second electrodes; and an insulating housing into which the first electrode is secured.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: UChicago Argonne, LLC
    Inventors: Peter J. Chupas, Karena W. Chapman, Charles A.. Kurtz, Olaf J. Borkiewicz, Kamila Magdelena Wiaderek, Badri Shyam
  • Crystal Oscillators
    Publication number: 20080001679
    Abstract: A crystal-controlled oscillator comprises a crystal that is formed from a material that is suitable for use in the oscillator. However, the thermal expansion characteristic of the material itself enables temperature dependence of the oscillator frequency to be controlled over an operating temperature range for the oscillator. A timing device may incorporate the crystal-controlled oscillator.
    Type: Application
    Filed: January 13, 2005
    Publication date: January 3, 2008
    Inventors: Cameron J. Kerpert, Karena W. Chapman