Patents by Inventor Betsy Elzufon

Betsy Elzufon 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).

  • Autodeposition emulsion and methods of using thereof to selectively protect metallic surfaces
    Patent number: 5508141
    Abstract: A coating of resin and photoactive functionality is autodeposited from an emulsion onto a metallic substrate in order to selectively protect the substrate from corrosive environments such as etchant processes. An acid and oxidizing agent are included in the emulsion so that when the substrate is immersed in the emulsion the resin and photoactive functionality autodeposits. The resulting coating can be exposed to actinic radiation in an image-wise fashion and developed in an alkaline solution to develop the image created. In instances where the emulsion and process are used to make circuit boards, the metallic surface uncovered during developing is then etched away, leaving only the coated sections of the surface. The resulting coated surfaces will be the circuit traces of the circuit board.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: April 16, 1996
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Daniel J. Hart, Alan F. Becknell, Betsy Elzufon, John S. Hallock, Alan R. Browne
  • Autodeposition emulsion and methods of using thereof to selectively protect metallic surfaces
    Patent number: 5232815
    Abstract: A coating of resin and photoactive functionality is autodeposited from an emulsion onto a metallic substrate in order to selectively protect the substrate from corrosive environments such as etchant processes. An acid and oxidizing agent are included in the emulsion so that when the substrate is immersed in the emulsion the resin and photoactive functionality autodeposits. The resulting coating can be exposed to actinic radiation in an image-wise fashion and developed in an alkaline solution to develop the image created. In instances where the emulsion and process are used to make circuit boards, the metallic surface uncovered during developing is then etched away, leaving only the coated sections of the surface. The resulting coated surfaces will be the circuit traces of the circuit board.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: August 3, 1993
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Alan R. Browne, Daniel J. Hart, Alan F. Becknell, Betsy Elzufon