Patents by Inventor Hans Roggendorf

Hans Roggendorf 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).

  • Binder for interior plasters
    Patent number: 5522928
    Abstract: A novel binder for interior plasters having a calcium sulphate component capable of binding in the presence of water and a finely divided residual material component comprised primarily of calcium sulphite, where the residual material is a product of flue gas desulphurization of coal-fired combustion plants.
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: June 4, 1996
    Assignee: Sicowa Verfahrenstechnik fur Baustoffe GmbH & Co. KG
    Inventors: Thomas Koslowski, Hans Roggendorf