Patents by Inventor Harro Seth

Harro Seth 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).

  • Gypsum board comprisiing linings made of glass fiber non-wovens coated with an inorganic cement binder
    Patent number: 5395685
    Abstract: A gypsum board comprises linings made of coated non-woven fiberglass mats having surfaces turned away from the gypsum core of the fiberglass mats which have been coated with an inorganic binder at least partially set with water. Preferably, quick-setting mixtures comprising cement, .alpha.-hemihydrate and ultra-fine silica are used which are dimensionally stable during setting as well as later on.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: March 7, 1995
    Assignee: Gebruder Knauf Westdeutsche Gipswerke KG
    Inventors: Harro Seth, Gerhard Neuhauser, Claus-Peter Berneth