Patents by Inventor Robert M. Lukes

Robert M. Lukes 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).

  • Composition and method for chemically etching copper elements
    Patent number: 4007037
    Abstract: This invention resides in compositions and methods for chemically etching copper elements. The etching solution of this invention is composed of materials which can be easily regenerated and the copper metal etched from the copper element easily recovered. The etching solution is also of a type that is substantially self-sustaining.
    Type: Grant
    Filed: July 9, 1975
    Date of Patent: February 8, 1977
    Assignee: General Electric Company
    Inventors: Robert M. Lukes, Jeffrey C. Sellins