Patents by Inventor Walter H. Rees, Jr.

Walter H. Rees, Jr. 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).

  • Automated method for the analysis and control of the electroless metal plating solution
    Patent number: 4774101
    Abstract: An apparatus coupled to an electroless copper plating bath for analyzing controlling, on-line, the primary constituents of the bath is described. The apparatus detects and controls not only the copper concentration of the bath by optical means, but the concentrations of hydroxyl ion, formaldehyde reducing agent and cyanide ion as well.
    Type: Grant
    Filed: December 10, 1986
    Date of Patent: September 27, 1988
    Assignee: American Telephone and Telegraph Company, AT&T Technologies, Inc.
    Inventors: John E. Harris, Walter H. Rees, Jr.