Patents by Inventor Ernst Borgmann

Ernst Borgmann 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).

  • Process for removing heavy metal sulphides from aqueous systems
    Patent number: 4217209
    Abstract: The invention relates to a method for removing heavy metal sulphides from dilute aqueous systems as they are present in numerous chemical processes. The method is characterized in that water-soluble polymers such as polyethyleneimines, homopolymers or copolymers of derivatives of acrylic acid or methacrylic acid or homopolymers or copolymers of styrenesulphonic acids are added to said systems and the systems are then filtered.
    Type: Grant
    Filed: September 27, 1978
    Date of Patent: August 12, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Guido Steffan, Ernst Borgmann, Peter Buchel, Wolfgang Harms