Patents by Inventor Hermann Solbach

Hermann Solbach 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).

  • Patent number: 3998732
    Abstract: The waste water of a sulfite pulp mill containing lignin and lignin derivves which are not bio-degradable is purified by contact with a fixed bed of granular, porous .gamma.-alumina having a particle size of 0.5-10 mm and a specific surface area of at least 140 m.sup.2 /g.
    Type: Grant
    Filed: October 16, 1975
    Date of Patent: December 21, 1976
    Assignee: Feldmuhle Anlagen- und Produktionsgesellschaft mit beschrankter Haftung
    Inventors: Hermann Solbach, Hans Foerster