Patents by Inventor Gregory Scott Duncan

Gregory Scott Duncan 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).

  • Method and apparatus for applying a surfactant to mold surfaces
    Patent number: 5837314
    Abstract: A method of and apparatus for employing a surfactant which is provided in order to assist in the release from each other of mold components of a multi-part mold employed in the molding of polymeric articles; for instance, such as a hydrophilic contact lens, upon completion of the molding process for the polymeric articles. The surfactant is applied in the form of a film or coating on surface portions of one of the mold components in order to facilitate the disengagement between the mold components during demolding, and the removal of excess polymeric molding material adhesively deposited on surfaces thereon.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: November 17, 1998
    Assignee: Johnson & Johnson Vision Products, Inc.
    Inventors: Stephen Robert Beaton, Wallace Anthony Martin, Ture Kindt-Larsen, Craig William Walker, Gregory Scott Duncan