Patents by Inventor David W. Penner

David W. Penner 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).

  • Process to Maximize Methane Content in Natural Gas Stream
    Publication number: 20090158660
    Abstract: The present invention relates to a hydrogenolysis process and catalyst for conversion of ethane to methane in a natural gas stream when such streams contain large quantities of ethane. Such natural gas streams include the product of the in situ treatment of oil shale to produce oil and gas. Hydrogenolysis catalysts have been identified that produce high yields of ethane at low light-off temperatures.
    Type: Application
    Filed: February 25, 2009
    Publication date: June 25, 2009
    Inventors: Kurt M. Vanden Bussche, Paul T. Barger, David W. Penner, Mark E. Schott, Frank S. Modica
  • Glucose or maltose from starch
    Patent number: 4594322
    Abstract: A process for obtaining glucose from thinned starch by partially hydrolyzing the latter to give from 50% to 92% glucose followed by separation of the hydrolysis product to afford a glucose-enriched product with recycling of the glucose-depleted stream affords benefits unattainable by conventional commercial processes. Substantial reductions in process time and reversion products and a substantial increase in productivity are among some of the benefits.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: June 10, 1986
    Assignee: UOP Inc.
    Inventors: Gregory J. Thompson, Kaung-Far Lin, David W. Penner