Patents by Inventor Lars Weitkämper

Lars Weitkämper 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 OF PROVIDING A REACTIVE CEMENT CONSTITUENT OR CONCRETE ADDITIVE
    Publication number: 20230219843
    Abstract: A method of providing a reactive cement constituent or concrete additive includes at least the following steps: a) reworking a carbon-containing heap comprising at least coal and clay-bearing rock; b) extracting at least calcined rock; c) producing fine-grain calcined rock; and d) providing fine-grain calcined rock for use as cement constituent or concrete additive.
    Type: Application
    Filed: April 28, 2021
    Publication date: July 13, 2023
    Inventors: Lars Weitkämper, Martin Rausch, Dirk Gossmann, Anya Vollpracht, Hermann Wotruba, Andreas Jungmann