Patents by Inventor Colin Craswell

Colin Craswell 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).

  • Coldset web offset printing process and composition
    Patent number: 9327540
    Abstract: By appropriate selection of an overprint varnish, so that it dries to no adhesion within 120 seconds, it is possible to coat one side only of newsprint or other similar substrates or to coat both sides of the substrate (without having regard to the relative times at which the sides are coated), without, in almost all cases, causing any fluting or curling of the substrate.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: May 3, 2016
    Assignee: SUN CHEMICAL, B.V.
    Inventors: Colin Craswell, Stephen Wells
  • COLDSET WEB OFFSET PRINTING PROCESS AND COMPOSITION
    Publication number: 20100326305
    Abstract: By appropriate selection of an overprint varnish, so that it dries to no adhesion within 120 seconds, it is possible to coat one side only of newsprint or other similar substrates or to coat both sides of the substrate (without having regard to the relative times at which the sides are coated), without, in almost all cases, causing any fluting or curling of the substrate.
    Type: Application
    Filed: February 24, 2009
    Publication date: December 30, 2010
    Applicant: Sun Chemical, B.V.
    Inventors: Colin Craswell, Stephen Wells
  • Improved Coldset web Offset Printing
    Publication number: 20080295712
    Abstract: In a coldset web offset printing process, a substrate, e.g. newsprint, is printed with the desired matter and is then coated on both sides essentially simultaneously with a clear varnish to a film weight no more than 2 gsm dry weight on each side.
    Type: Application
    Filed: January 23, 2007
    Publication date: December 4, 2008
    Applicant: Sun Chemical Corp.
    Inventors: Colin Craswell, Stephen Wells