Patents by Inventor Dennis Warwick

Dennis Warwick 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: 11731445
    Abstract: Techniques are described herein that mitigate warpage during laser marking on a plastic security document. A method of laser marking a feature onto a plastic card includes electronically dividing an image of the feature into a plurality of sections. The method includes laser marking a first one of the sections on the document and laser marking a second one of the sections on the document. The first section is not contiguous with the second section.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: August 22, 2023
    Assignee: ENTRUST CORPORATION
    Inventor: Denny Warwick
  • Publication number: 20200254804
    Abstract: Techniques are described herein that mitigate warpage during laser marking on a plastic security document. A method of laser marking a feature onto a plastic card includes electronically dividing an image of the feature into a plurality of sections. The method includes laser marking a first one of the sections on the document and laser marking a second one of the sections on the document. The first section is not contiguous with the second section.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 13, 2020
    Inventor: Denny WARWICK
  • Publication number: 20070104526
    Abstract: Identity document processing equipment with a mechanism designed to maintain tension in a ribbon used in a processing operation in the processing equipment. The tension maintaining mechanism is separate from the supply roll and the take-up roll for the ribbon, eliminating the need for clutches or brakes attached to the supply or take-up rolls to achieve tensioning. Since the tension maintaining mechanism is separate from the supply roll and the take-up roll, the inertia of the supply roll or the take-up roll does not affect the tension on the ribbon during use of the processing equipment.
    Type: Application
    Filed: November 10, 2005
    Publication date: May 10, 2007
    Applicant: DataCard Corporation
    Inventors: Milo Squires, Dennis Warwick