Patents by Inventor Joseph P. Friederichs

Joseph P. Friederichs 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).

  • Method for preparing a mortar
    Patent number: 6503319
    Abstract: Method for preparing a concrete mortar which contains a fraction of inorganic grains having a diameter <500 &mgr;m, wherein the fraction containing the inorganic grains is added in the form of a granular material which contains the inorganic grains which, with the aid of a water-soluble polymer, are bound so as to form the granular material. As a result, a homogeneous mortar is obtained.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: January 7, 2003
    Assignee: DSM N.V.
    Inventors: Antonius J. F. M. Courage, Joseph P. Friederichs