Patents by Inventor Karlheinz Rosener

Karlheinz Rosener 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 making sintered dolomite with a low porosity and a good hydration stability
    Patent number: 4394454
    Abstract: To produce a dolomite sinter with a low porosity and a good hydration stability made of difficult-to-sinter raw dolomite, the dolomite is milled and caustic burnt dolomite, dolomite hydrate or semi-burnt dolomite in quantities between 3 and 20% by weight relative to the total mixture is added to the raw dolomite powder and is calculated as oxide, as well as foreign oxide, such as Fe.sub.2 O.sub.3, Al.sub.2 O.sub.3 or SiO.sub.2, in such quantities that the total content of the foreign oxide mixture is 1 to 3% by weight.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: July 19, 1983
    Assignee: Dolomitwerke GmbH
    Inventors: Karlheinz Rosener, Alfred Roeder, Wolfgang Munchberg, Herbert Richrath, Max Chmiel