Patents by Inventor Rainer Follmann

Rainer Follmann 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).

  • Calcium silicate granules forming a microporous structure
    Patent number: 4395357
    Abstract: The invention deals with calcium silicate granulates or powders with a microporous structure, which are obtained, by reacting crystalline or, if required, amorphous silicon dioxide, or materials containing the same, with calcium oxide or materials containing the same, in a CaO to SiO.sub.2 molar ratio of 0.
    Type: Grant
    Filed: June 12, 1981
    Date of Patent: July 26, 1983
    Assignee: Mars Inc.
    Inventors: Walter Kramer, Rainer Follmann
  • Animal litter
    Patent number: 4275684
    Abstract: An animal litter consisting of or containing a porous calcium silicate granulate or powder prepared by reacting silicon dioxide or materials containing the same with calcium oxide or materials containing the same in a CaO to SiO.sub.2 molar ratio of 0.8:1 to 1.1:1, with homogenization thereof during the reaction by dispersing the solid starting materials in water with the addition of an anion-active surfactant previously converted in water to a microporous stable foam.
    Type: Grant
    Filed: January 16, 1980
    Date of Patent: June 30, 1981
    Assignee: Effem GmbH
    Inventors: Walter Kramer, Rainer Follmann