Patents by Inventor Rolf Zumsteg

Rolf Zumsteg 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).

  • USE OF POLYAMINE AS ANTI-STICKING ADDITIVE
    Publication number: 20140377013
    Abstract: Method of use of at least one polyamine compound selected from the group consisting of diethylenetriamine: triethylenetetramine (TETA), tetraethylengentemine (TEPA). pentaethylenehexamine (PEHA), hexaethyieneheptamine and heptaethyleneoctamine sticking decreasing additive for soil with a day mineral content o more than 10% by weight.
    Type: Application
    Filed: August 17, 2012
    Publication date: December 25, 2014
    Applicant: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH
    Inventors: Alexander Puzrin, Michael Plötze, Lorenz Meier, Rolf Zumsteg