Patents by Inventor Paul H. Landolt

Paul H. Landolt 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 water-soluble synthetic polymer in powder form
    Patent number: 4138539
    Abstract: Polymerization of a water-soluble monomer which forms a water-soluble polymer as an aqueous solution containing free radical and redox system initiators in an advancing polymerization zone followed by staged drying and pulverization provides the polymer in readily dissolved powder form.
    Type: Grant
    Filed: June 19, 1975
    Date of Patent: February 6, 1979
    Assignee: American Cyanamid Company
    Inventors: Paul H. Landolt, Louis N. Allen