Patents by Inventor David P. Tolle

David P. Tolle 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).

  • Publication number: 20090246523
    Abstract: A calcium-aluminate cement based catalyst support having a cross-sectional diameter as small as 0.5 mm and as large as 1.6 mm wherein said particles are formed by extrusion or pelletizing is disclosed.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 1, 2009
    Inventors: Shizhong Jason Zhao, David P. Tolle, Jurgen R. Ladebeck
  • Patent number: 7378370
    Abstract: A promoted calcium-alumina supported reforming catalyst that is particularly useful for reforming reactions where low H2/CO ratio synthesis gas, such as less than 2.3 is generated directly is disclosed. The catalyst comprises from about 25 wt % to about 98 wt % alumina, from about 0.5 wt % to about 35 wt % calcium oxide, from about 0.01 wt % to about 35 wt % of a promoter, and from about 0.05 wt % to about 30 wt % of an active metal. The promoter is selected from the group consisting of titanium, zirconium, yttrium, niobium, elements of the lanthanum-series, such as, without limitation, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, ytterbium, and combinations thereof. The active metal is selected from the group consisting of nickel, cobalt, rhodium, ruthenium, palladium, platinum, iridium and combinations thereof as active metal, wherein the calcium oxide is combined with the alumina to form aluminum-rich calcium aluminates.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: May 27, 2008
    Assignee: Süd-Chemie Inc
    Inventors: Yeping Cai, William M. Faris, Jeffery E. Riley, Robert E. Riley, David P. Tolle, Jon P. Wagner, Shizhong Zhao