Patents by Inventor Jr. Hicks

Jr. Hicks 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).

  • Apparatus and method for regeneration of chromosulfuric acid etchants
    Patent number: 4073708
    Abstract: A chromic-sulfuric etching solution for copper is regenerated in an etching container with a permeable diaphragm dividing the container into an etching chamber and a sulfuric acid containing chamber. Electric current passes between an anode electrode located in the etchant chamber and a cathode electrode located in the sulfuric acid chamber to regenerate the etchant in the anode containing chamber and to deposit copper on the cathode.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: February 14, 1978
    Assignee: The Boeing Company
    Inventor: Jr. Hicks