Patents by Inventor Keith P. Parsons

Keith P. Parsons 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).

  • Patent number: 9447492
    Abstract: A method of applying a transparent conductive film to a polymeric substrate having a desired textured therein is provided. The method includes the steps of providing a polymeric material having a texture disposed therein and conformally applying a transparent conductive material to the molded polymeric material to produce a conformal transparent conductive film thereon. The conformal transparent conductive film has a texture corresponding to the texture of the polymeric material and has a period that is not larger than the wavelength of visible light, whereby the conformal transparent conductive film is antireflective.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: September 20, 2016
    Inventors: Graham J. Hubbard, Keith P. Parsons, Timothy N. Wright
  • Patent number: 8524134
    Abstract: A method of molding a polymeric material to create a desired texture therein using an alumina mold having a plurality of cylindrical pores disposed therein, the method comprising the steps of: a) providing a porous alumina master having a plurality of cylindrical pores dispersed therein, said plurality of cylindrical pores corresponding to projections to be imparted to a surface of a film; disposing a polymeric material between a film and the porous alumina master; and c) applying mechanical pressure to roll the porous alumina master into the polymeric material, wherein the texture imparted to the polymeric molding material comprises projections corresponding to the cylindrical pores of the porous alumina master. A release agent is applied to the porous alumina master prior to disposing the polymeric molding material between the porous alumina master and the film.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: September 3, 2013
    Inventors: Graham J. Hubbard, Keith P. Parsons
  • Publication number: 20120305521
    Abstract: A method of applying a transparent conductive film to a polymeric substrate having a desired textured therein is provided. The method includes the steps of providing a polymeric material having a texture disposed therein and conformally applying a transparent conductive material to the molded polymeric material to produce a conformal transparent conductive film thereon. The conformal transparent conductive film has a texture corresponding to the texture of the polymeric material and has a period that is not larger than the wavelength of visible light, whereby the conformal transparent conductive film is antireflective.
    Type: Application
    Filed: June 3, 2011
    Publication date: December 6, 2012
    Inventors: Graham J. Hubbard, Keith P. Parsons, Timothy N. Wright
  • Publication number: 20120007273
    Abstract: A method of molding a polymeric material to create a desired texture therein using an alumina mold having a plurality of cylindrical pores disposed therein, the method comprising the steps of: a) providing a porous alumina master having a plurality of cylindrical pores dispersed therein, said plurality of cylindrical pores corresponding to projections to be imparted to a surface of a film; disposing a polymeric material between a film and the porous alumina master; and c) applying mechanical pressure to roll the porous alumina master into the polymeric material, wherein the texture imparted to the polymeric molding material comprises projections corresponding to the cylindrical pores of the porous alumina master. A release agent is applied to the porous alumina master prior to disposing the polymeric molding material between the porous alumina master and the film.
    Type: Application
    Filed: July 12, 2010
    Publication date: January 12, 2012
    Inventors: Graham J. Hubbard, Keith P. Parsons
  • Publication number: 20040058135
    Abstract: A method for manufacturing a microporous film comprising the steps of:
    Type: Application
    Filed: September 16, 2003
    Publication date: March 25, 2004
    Applicant: Kodak Polychrome Graphics, LLC
    Inventors: Ranjan C. Patel, Jon C. Vogel, Keith P. Parsons, Graham Spence, Alan J. Lindsay, Rachel J. Hobson, Luke C. Williams
  • Patent number: 6689421
    Abstract: A method for manufacturing a microporous film comprising the steps of: (a) providing a first polymer which is a hydrophobic thermoplastic polymer and a second polymer which is a hydrophilic polymer or copolymer of N-vinylpyrrolidone; (b) dissolving said first and second polymers in a solvent system which is compatible with both polymers, said solvent system comprising a blend of an aprotic organic solvent and an alcohol; (c) coating the resulting solution on a support; (d) effecting at least a partial drying of the resulting coating; and (e) washing the coating in an aqueous medium so as to extract at least 50% by weight of the said second polymer.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: February 10, 2004
    Assignee: Kodak Polychrome Graphics, Inc.
    Inventors: Ranjan C. Patel, Jon C. Vogel, Keith P. Parsons, Graham Spence, Alan J. Lindsay, Rachel J. Hobson, Luke C. Williams
  • Publication number: 20010023014
    Abstract: A method for manufacturing a microporous film comprising the steps of:
    Type: Application
    Filed: March 12, 2001
    Publication date: September 20, 2001
    Inventors: Ranjan C. Patel, Jon C. Vogel, Keith P. Parsons, Graham Spence, Alan J. Lindsay, Rachel J. Hobson, Luke C. Williams
  • Patent number: 5851663
    Abstract: A pressure-sensitive adhesive composition comprises an adhesive selected from the group consisting of rubber resin adhesives and acrylic adhesives containing from about 10 to about 60% by weight of the adhesive of a non-halogen intumescent flame retardant.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: December 22, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Keith P. Parsons, Mark R. Buckingham, James H. Diamond, Steven J. Ilkka, Petra Nowak