Patents by Inventor Paul David Alan Mills

Paul David Alan Mills 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).

  • Backlit display composite film
    Patent number: 6468641
    Abstract: A composite film is described which consists of a primary unfilled polyester layer and a secondary polyester layer containing from 1 to 8% by weight, based on the weight of the secondary polyester layer, of finely divided silica particles having a volume weighted mean particle size diameter D[4,3] of from 2.3 to 6.2 micrometers. The composite film is used in backlit displays such as illuminated signboards and provides uniform light transmission while maintaining the same strength of illumination at all points over the area of the display.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: October 22, 2002
    Assignee: E. I. du Pont de Nemours & Company
    Inventors: Karl Rakos, Paul David Alan Mills, Moira Logan, Noel Stephen Brabbs
  • Backlit display composite film
    Publication number: 20010010859
    Abstract: A composite film is described which consists of a primary unfilled polyester layer and a secondary polyester layer containing from 1 to 8% by weight, based on the weight of the secondary polyester layer, of finely divided silica particles having a volume weighted mean particle size diameter D[4,3] of from 2.3 to 6.2 micrometers. The composite film is used in backlit displays such as illuminated signboards and provides uniform light transmission while maintaining the same strength of illumination at all points over the area of the display.
    Type: Application
    Filed: March 14, 2001
    Publication date: August 2, 2001
    Inventors: Karl Rakos, Paul David Alan Mills, Moria Logan, Noel Stephen Brabbs
  • Backlit display composite film
    Patent number: 6251505
    Abstract: A composite film is described which consists of a primary unfilled polyester layer and a secondary polyester layer containing from 1 to 8% by weight, based on the weight of the secondary polyester layer, of finely divided silica particles having a volume weighted mean particle size diameter D[4,3] of from 2.3 to 6.2 micrometers. The composite film is used in backlit displays such as illuminated signboards and provides uniform light transmission while maintaining the same strength of illumination at all points over the area of the display.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: June 26, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Karl Rakos, Paul David Alan Mills, Moira Logan, Noel Stephen Brabbs