Patents by Inventor John Knaack

John Knaack 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: 11613140
    Abstract: Methods and systems are disclosed for printing vibrant grey color(s) on plastic cards. The following features, which can be used individually or in any combination thereof, can be implemented to achieve the vibrant grey color(s): 1) use of CMYK pigment inks to achieve CMYK printing; 2) a pixel extraction process and/or a print trapping process; 3) two separate print commands including a CMY (or CMYK)+blending print command and a K+blending print command; and 4) proper card set-up.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: March 28, 2023
    Assignee: Entrust Corporation
    Inventors: Miguel Ayala, Heather Maershbecker, Rajesh K. Juriasingani, John Knaack, Wade Kragtorp
  • Patent number: 10744806
    Abstract: Techniques are described for obscuring residual images on print ribbons that have been used to print on plastic cards in order to prevent access to sensitive or personalized data appearing in the residual images. An image is printed on a retransfer film using the print ribbon, thereby creating a residual image of the printed image on the print ribbon. The retransfer film is then used to obscure some or all of the residual image on the print ribbon by transferring ink from the section of the print ribbon containing the residual image onto the retransfer film. In some embodiments, obscuring the residual image on the print ribbon occurs before the printed image on the retransfer film is transferred to the plastic card.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: August 18, 2020
    Assignee: Entrust Datacard Corporation
    Inventors: John Knaack, Rajesh K. Juriasingani, Patrick C. Cronin
  • Publication number: 20200238746
    Abstract: Methods and systems are disclosed for printing vibrant grey color(s) on plastic cards. The following features, which can be used individually or in any combination thereof, can be implemented to achieve the vibrant grey color(s): 1) use of CMYK pigment inks to achieve CMYK printing; 2) a pixel extraction process and/or a print trapping process; 3) two separate print commands including a CMY (or CMYK)+blending print command and a K+blending print command; and 4) proper card set-up.
    Type: Application
    Filed: April 16, 2020
    Publication date: July 30, 2020
    Inventors: Miguel AYALA, Heather MAERSHBECKER, Rajesh K. JURIASINGANI, John KNAACK, Wade KRAGTORP
  • Patent number: 10661593
    Abstract: Methods and systems are disclosed for printing vibrant grey color(s) on plastic cards. The following features, which can be used individually or in any combination thereof, can be implemented to achieve the vibrant grey color(s): 1) use of CMYK pigment inks to achieve CMYK printing; 2) a pixel extraction process and/or a print trapping process; 3) two separate print commands including a CMY (or CMYK)+blending print command and a K+blending print command; and 4) proper card set-up.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: May 26, 2020
    Assignee: Entrust Datacard Corporation
    Inventors: Miguel Ayala, Heather Maershbecker, Rajesh K. Juriasingani, John Knaack, Wade Kragtorp
  • Publication number: 20190366750
    Abstract: Techniques are described for obscuring residual images on print ribbons that have been used to print on plastic cards in order to prevent access to sensitive or personalized data appearing in the residual images. An image is printed on a retransfer film using the print ribbon, thereby creating a residual image of the printed image on the print ribbon. The retransfer film is then used to obscure some or all of the residual image on the print ribbon by transferring ink from the section of the print ribbon containing the residual image onto the retransfer film. In some embodiments, obscuring the residual image on the print ribbon occurs before the printed image on the retransfer film is transferred to the plastic card.
    Type: Application
    Filed: June 3, 2019
    Publication date: December 5, 2019
    Inventors: John KNAACK, Rajesh K. JURIASINGANI, Patrick C. CRONIN
  • Publication number: 20190366754
    Abstract: Methods and systems are disclosed for printing vibrant grey color(s) on plastic cards. The following features, which can be used individually or in any combination thereof, can be implemented to achieve the vibrant grey color(s): 1) use of CMYK pigment inks to achieve CMYK printing; 2) a pixel extraction process and/or a print trapping process; 3) two separate print commands including a CMY (or CMYK)+blending print command and a K+blending print command; and 4) proper card set-up.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 5, 2019
    Inventors: Miguel AYALA, Heather MAERSHBECKER, Rajesh K. JURIASINGANI, John KNAACK, Wade KRAGTORP
  • Patent number: 7866810
    Abstract: An improved large-format inkjet printer that is capable of providing more efficient and higher quality printing on a variety of print media, including for example, paper, fabric, corrugated media, and plywood. The improved printer provides improvements to the platen assembly, rail assembly, service station assembly, printhead assembly and vacuum assembly to provide improved printing capability. In addition the printer provides a table assembly that can be integrated into the platen assembly to provide a secure and flush surface for supporting various types of print media.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: January 11, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kevin Campion, Aaron Barclay, Chad Beery, Christian Vasbo, Corrine Ruether, Joe Kubes, Rick Bigaouette, Randy Johnston, Pete Ladas, Pete Schmidt, John Knaack
  • Publication number: 20080192075
    Abstract: An improved large-format inkjet printer that is capable of providing more efficient and higher quality printing on a variety of print media, including for example, paper, fabric, corrugated media, and plywood. The improved printer provides improvements to the platen assembly, rail assembly, service station assembly, printhead assembly and vacuum assembly to provide improved printing capability. In addition the printer provides a table assembly that can be integrated into the platen assembly to provide a secure and flush surface for supporting various types of print media.
    Type: Application
    Filed: February 9, 2007
    Publication date: August 14, 2008
    Inventors: Kevin Campion, Aaron Barclay, Chad Beery, Christian Vasbo, Corrine Ruether, Joe Kubes, Rick Bigaouette, Randy Johnston, Pete Ladas, Pete Schmidt, John Knaack