Patents by Inventor Charles S. Dulcey

Charles S. Dulcey 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).

  • Methods and materials for selective modification of photopatterned polymer films
    Patent number: 6436615
    Abstract: An aspect of the present invention is a process for modifying a substrate in areas that are exposed to actinic radiation, having the steps: (a) providing on the substrate functional groups adapted for conversion to oxygen-containing photoproducts upon exposure to actinic radiation; (b) exposing at least a portion of the substrate to the actinic radiation, converting the functional groups in an exposed region of the substrate to the photoproducts; (c) contacting the photoproducts with a primary or secondary amine in the presence of hydrogen ions, forming imine groups; and (d) contacting the imine groups with a reducing agent, forming amine groups on the substrate in the exposed region.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: August 20, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Susan L. Brandow, Jeffrey M. Calvert, Walter M. Dressick, Charles S. Dulcey
  • Efficient chemistry for selective modification and metallization of substrates
    Patent number: 5648201
    Abstract: A process for efficient modification and metallization of substrates includes the steps of providing a substrate with highly photoefficient chemical functional groups on at least a portion of this substrate, exposing the substrate to actinic radiation to transform, deactivate, or remove these chemical functional groups, to modify their chemical reactivity, and carrying out further chemical reaction steps on these modified chemical functional groups.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: July 15, 1997
    Assignee: The United Sates of America as represented by the Secretary of the Navy
    Inventors: Charles S. Dulcey, Timothy S. Koloski, Walter J. Dressick, Jeffrey M. Calvert, Brian M. Peek
  • Selective metallization process
    Patent number: 5510216
    Abstract: The invention is directed to a process for patterning a substrate in a selective pattern. In one embodiment, the process comprises the steps of forming a patterned coating over a substrate surface whereby portions of the substrate are covered by the patterned coating and portions of the substrate remain uncoated. A layer of a ligating material is coated over at least those portions of the substrate free of the patterned coating. The ligating layer is one that is capable of ligating with an electroless metal plating catalyst. The article so formed is then contacted with an electroless metallization catalyst and then with an electroless plating solution to form a patterned metal deposit on the substrate.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: April 23, 1996
    Assignee: Shipley Company Inc.
    Inventors: Gary S. Calabrese, Jeffrey M. Calvert, Mu-San Chen, Walter J. Dressick, Charles S. Dulcey, Jacque H. Georger, Jr., John F. Bohland, Jr.
  • Selective metallization process
    Patent number: 5468597
    Abstract: The invention is directed to a process for patterning a substrate in a selective pattern. In one embodiment, the process comprises the steps of forming a patterned coating over a substrate surface whereby portions of the substrate are covered by the patterned coating and portions of the substrate remain uncoated. A layer of a ligating material is coated over at least those portions of the substrate free of the patterned coating. The ligating layer is one that is capable of ligating with an electroless metal plating catalyst. The article so formed is then contacted with an electroless metallization catalyst and then with an electroless plating solution to form a patterned metal deposit on the substrate.
    Type: Grant
    Filed: August 25, 1993
    Date of Patent: November 21, 1995
    Assignee: Shipley Company, L.L.C.
    Inventors: Gary S. Calabrese, Jeffrey M. Calvert, Mu-San Chen, Walter J. Dressick, Charles S. Dulcey, Jacque H. Georger, Jr., John F. Bohland, Jr.