Patents by Inventor Charles B. Muehlberger

Charles B. Muehlberger 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).

  • Supported precious metal catalysts via hydrothermal deposition
    Patent number: 8450236
    Abstract: A process for making a catalyst having precious metal nanoparticles deposited on a support includes first providing an aqueous dispersion of support particles. A pre-treatment slurry is prepared by mixing the aqueous dispersion of support particles with a water-soluble precious metal precursor and a reducing agent. The pre-treatment slurry is hydrothermally treated at a temperature in the range of from about 40° C. to about 220° C. for a time sufficient to deposit precious metal nanoparticles on the surface of the support particles, the precious metal nanoparticles having an average particle size less about 50 nm.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: May 28, 2013
    Assignee: Cristal USA Inc.
    Inventors: Guoyi Fu, Mark B. Watson, Charles B. Muehlberger
  • Supported Precious Metal Catalysts Via Hydrothermal Deposition
    Publication number: 20110251055
    Abstract: A process for making a catalyst having precious metal nanoparticles deposited on a support includes first providing an aqueous dispersion of support particles. A pre-treatment slurry is prepared by mixing the aqueous dispersion of support particles with a water-soluble precious metal precursor and a reducing agent. The pre-treatment slurry is hydrothermally treated at a temperature in the range of from about 40° C. to about 220° C. for a time sufficient to deposit precious metal nanoparticles on the surface of the support particles, the precious metal nanoparticles having an average particle size less about 50 nm.
    Type: Application
    Filed: April 13, 2010
    Publication date: October 13, 2011
    Inventors: Guoyi Fu, Mark B. Watson, Charles B. Muehlberger