Patents by Inventor Jeffrey M. Pietryga

Jeffrey M. Pietryga 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).

  • Real time measurement of shock pressure
    Patent number: 8135244
    Abstract: A fiber-based optical pressure-sensor, made using semiconductor nanocrystal quantum dots (NQDs) as the active transducing material, provides response time fast enough for shock wave measurements. For NQDs, the shift in band gap as a result of applied pressure can be observed as a shift of the photoluminescence (PL) peak. Further, the shift of the principal absorbance feature allows pressure measurements faster than those obtainable by following the PL peak.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: March 13, 2012
    Assignee: The United States of America as represented by the United States Deparment of Energy
    Inventors: Robert K. Sander, Kirill K. Zhuravlev, Richard D. Schaller, Jeffrey M. Pietryga, Michael Whitehead
  • Surface-treated lead chalcogenide nanocrystal quantum dots
    Publication number: 20080057311
    Abstract: The present invention is directed to surface-modified lead chalcogenide nanocrystal quantum dots that are a reaction product of lead chalcogenide nanocrystal quantum dots and a metal such as a cadmium compound.
    Type: Application
    Filed: August 31, 2006
    Publication date: March 6, 2008
    Inventors: Jennifer A. Hollingsworth, Jeffrey M. Pietryga