Patents by Inventor Richard Mantel

Richard Mantel 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).

  • Lightweight concrete panel
    Publication number: 20080236069
    Abstract: A lightweight cast concrete panel including concrete having a wet weight of between about 132 to about 140 pounds per cubic foot, and air content of between about 7 to about 11 percent.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 2, 2008
    Inventors: Jason Hensley, Thomas Kuckhahn, Richard Mantel, George Miks