Wyoming Inventors Database
Wyoming Inventors : Name Search Results

Norman Grauerholz has a total of 1 patent(s) in the database.

* Some patents in this database have one or more inventors, not all of whom may be from Wyoming.

 

  1. Patent Number: 4152138     View patent at USPTO
    Title: METHOD FOR SEPARATING A MIXTURE OF MOLTEN OXIDIZED FERROPHOSPHORUS AND REFINED FERROPHOSPHORUS
    Assignee: Union Carbide Corporation
    Issue Date: May 01, 1979
    Inventor(s): Norman L. Grauerholz, Lewiston, NY
    Duane L. Johnson, Arapahoe, WY
    Robert L. Ripley, Niagara Falls, NY