Patents by Inventor Verlyn R. Roskam

Verlyn R. Roskam 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).

  • Brick additives and methods for using same
    Patent number: 6872677
    Abstract: A brick additive and methods for using the brick additive are disclosed. The additive may include an internal porosity. The internal porosity may display an intra-granular internal porosity in which at least some of the pores are interconnected via an open network of pore spaces. In some embodiments, the additive is capable of maintaining its internal porosity after undergoing thermal modification via calcination, for example. In addition, brick additives of the present invention may display a large surface area.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: March 29, 2005
    Assignee: Oil Dri Corporation
    Inventors: Verlyn R. Roskam, Marc A. Herpfer, Allan S. Lee
  • Brick additives and methods for using same
    Publication number: 20040067840
    Abstract: A brick additive and methods for using the brick additive are disclosed. The additive may include an internal porosity. The internal porosity may display an intra-granular internal porosity in which at least some of the pores are interconnected via an open network of pore spaces. In some embodiments, the additive is capable of maintaining its internal porosity after undergoing thermal modification via calcination, for example. In addition, brick additives of the present invention may display a large surface area.
    Type: Application
    Filed: October 2, 2002
    Publication date: April 8, 2004
    Inventors: Verlyn R. Roskam, Marc A. Herpfer, Allan S. Lee