Patents by Inventor Rudolf Buelte

Rudolf Buelte 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).

  • Higher actives dispersion polymer to aid clarification, dewatering, and retention and drainage
    Patent number: 6171505
    Abstract: The invention is a method for clarifying, dewatering or improving retention and drainage of industrial waste water or paper furnish with an effective amount of at least one dispersion of a water soluble cationic polymer flocculant wherein the improvement comprises the addition of said polymer which has a concentration of at least twenty five percent to said waste water or paper furnish. The industrial waste is preferably food processing waste water, oily waste water, paper mill waste water and inorganic contaminated waste water. The paper furnish may be an aqueous cellulosic suspension.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: January 9, 2001
    Assignee: Nalco Chemical Company
    Inventors: Elise E. Maury, Rudolf Buelte, Cathy C. Johnson