Patents by Inventor Brian John Farmer, legal representative

Brian John Farmer, legal representative 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).

  • Process for the production of brittle polymeric film
    Patent number: 7718104
    Abstract: A process for the production of a polymeric film comprising a copolyester having an acid component and a diol component, said acid component comprising a dicarboxylic acid and a sulfomonomer containing a sulfonate group attached to the aromatic nucleus of an aromatic dicarboxylic acid, said process comprising the steps of: (i) melt-extruding a layer of said copolyester; (ii) stretching the extrudate in at least one direction; (iii) heat-setting the film by raising the temperature of the stretched film to a temperature T1 in a first heating zone such that (TM-T1) is in the range of from 5 to 30° C., and then raising the temperature of the film to a temperature T2 in a second heating zone such that (TM-T2 is in the range of from 0 to 10° C.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: May 18, 2010
    Assignee: Dupont Teijin Films US Ltd.
    Inventors: William Alasdair MacDonald, Pierre Georges Osborne Moussalli, Kenneth Evans, Julian Peter Attard, David Boyce, Christopher Charles Naylor, Brian John Farmer, legal representative, David Edward Robins, legal representative