Patents by Inventor David Schlain

David Schlain 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).

  • Electrodeposition of copper
    Patent number: 4053377
    Abstract: The invention consists of a method for electrowinning or electrorefining of metals, particularly copper, comprising electrodepositing the metal from an electrolyte solution under conditions comprising high cathode and anode current densities and high velocity flow of electrolyte past the electrode surfaces. Current densities of about 60 to 400 amp/sq ft are employed, with electrolyte flow rates of at least 75 ft/min, preferably about 150 to 400 ft/min.
    Type: Grant
    Filed: February 13, 1976
    Date of Patent: October 11, 1977
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: David Schlain, Frank X. McCawley, Gerald R. Smith