Patents by Inventor Peter Geerts

Peter Geerts 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 of lithographic printing with a reusable substrate
    Patent number: 6893798
    Abstract: A method for treating a micro-emulsion that can be used for removing the ink-accepting areas of a lithographic printing master is disclosed, which enables to recycle the water from the used micro-emulsion. The method comprises the heating of the micro-emulsion to a temperature above 50° C. thereby obtaining an aqueous phase and an organic phase and separating the aqueous phase from the organic phase.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: May 17, 2005
    Assignee: Agfa-Gevaert
    Inventors: Eric Verschueren, Peter Geerts
  • Method of offset printing with a reusable substrate
    Patent number: 6484638
    Abstract: A direct-to-plate method of lithographic printing is disclosed which enables to recycle the lithographic substrate of the printing master. The method comprises the steps of (a) making a negative-working imaging material by coating on a hydrophilic substrate a coating solution comprising hydrophobic thermoplastic polymer particles and a hydrophilic binder; (b) making a printing master having ink-accepting areas by image-wise exposing the imaging material; (c) applying ink and fountain solution to the printing master; (d) removing the ink-accepting areas from the printing master by supplying a aliphatic or aromatic compound having a structure comprising at least 6 carbon atoms. The above steps are preferably carried out on-press.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: November 26, 2002
    Assignee: Agfa-Gevaert
    Inventors: Eric Verschueren, Peter Geerts
  • Method of lithographic printing with a reusable substrate
    Publication number: 20020106585
    Abstract: A method for treating a micro-emulsion that can be used for removing the ink-accepting areas of a lithographic printing master is disclosed, which enables to recycle the water from the used micro-emulsion. The method comprises the heating of the micro-emulsion to a temperature above 50° C. thereby obtaining an aqueous phase and an organic phase and separating the aqueous phase from the organic phase.
    Type: Application
    Filed: November 2, 2001
    Publication date: August 8, 2002
    Applicant: Agfa-Gevaert
    Inventors: Eric Verschueren, Peter Geerts
  • Heat mode sensitive imaging element for making positive working printing plates
    Patent number: 6340815
    Abstract: According to the present invention there is provided a heat mode imaging element for making a lithographic printing plate having on a lithographic base with a hydrophilic surface a first layer including a polymer, soluble in an aqueous alkaline solution and a top layer on the same side of the lithographic base as the first layer which top layer is IR-sensitive and unpenetrable for an alkaline developer wherein said first layer and said top layer may be one and the same layer; characterized in that said top layer contains a compound that increases the dynamic friction coefficient of the top layer to between 0.40 and 0.80.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: January 22, 2002
    Assignee: Agfa-Gevaert
    Inventors: Eric Verschueren, Peter Geerts
  • Method of offset printing with a reusable substrate
    Publication number: 20010008104
    Abstract: A direct-to-plate method of lithographic printing is disclosed which enables to recycle the lithographic substrate of the printing master.
    Type: Application
    Filed: December 14, 2000
    Publication date: July 19, 2001
    Inventors: Eric Verschueren, Peter Geerts