Patents by Inventor John Andrew Sedlak

John Andrew Sedlak 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).

  • Cationic arylamide-styrene copolymers and flocculation of sewage therewith
    Patent number: 3956122
    Abstract: Water-dispersible but water-insoluble vinyl polymers composed of at least 40 mol percent of hydrophilic cationic linkages, at least 5 mol percent of hydrophobic linkages and up to 10 mol percent of hydrophilic anionic linkages are flocculating agents for the solids in industrial effluents (including raw and digested sewage). The polymers form stable dispersions in water, and are employed in that state.
    Type: Grant
    Filed: December 12, 1974
    Date of Patent: May 11, 1976
    Assignee: American Cyanamid Company
    Inventors: Anthony Thomas Coscia, Hans Peter Panzer, John Andrew Sedlak