Patents by Inventor Fritz Tollner

Fritz Tollner 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).

  • Concrete thickener for thickening concrete article, said concrete article and process for producing same
    Publication number: 20050011416
    Abstract: The present invention relates to a a concrete article, the concrete article, containing a concrete thickener, comprising the following components: a) about 20 to about 40% by weight, preferably about 30% by weight of a thickening agent; b) about 20 to about 40% by weight, preferably about 30% by weight of a hydrophobing additive; and c) remainder water; a process for producing a concrete article of the invention, and a concrete thickener for thickening concrete articles.
    Type: Application
    Filed: August 18, 2003
    Publication date: January 20, 2005
    Inventor: Fritz Tollner