Patents by Inventor Cornelius Jan Delst

Cornelius Jan Delst 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).

  • Security ink based security feature
    Patent number: 11241901
    Abstract: A security article may include a substrate. The security article may include a layer of security ink. The layer of security ink may include a set of color-shifting interference particles. The security article may include a layer of magnetic color-shifting ink. The layer of magnetic color-shifting ink may include a set of magnetically aligned magnetic particles. A color-shifting property of the layer of security ink and a color-shifting property of the layer of magnetic color-shifting ink may have a threshold level of similarity to create a color matching effect.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: February 8, 2022
    Assignee: VIAVI Solutions Inc.
    Inventors: Vladimir P. Raksha, Cornelius Jan Delst
  • SECURITY INK BASED SECURITY FEATURE
    Publication number: 20190275826
    Abstract: A security article may include a substrate. The security article may include a layer of security ink. The layer of security ink may include a set of color-shifting interference particles. The security article may include a layer of magnetic color-shifting ink. The layer of magnetic color-shifting ink may include a set of magnetically aligned magnetic particles. A color-shifting property of the layer of security ink and a color-shifting property of the layer of magnetic color-shifting ink may have a threshold level of similarity to create a color matching effect.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 12, 2019
    Inventors: Vladimir P. RAKSHA, Cornelius Jan DELST
  • Security ink based security feature
    Patent number: 10357991
    Abstract: A security article may include a substrate. The security article may include a layer of security ink. The layer of security ink may include a set of color-shifting interference particles. The security article may include a layer of magnetic color-shifting ink. The layer of magnetic color-shifting ink may include a set of magnetically aligned magnetic particles. A color-shifting property of the layer of security ink and a color-shifting property of the layer of magnetic color-shifting ink may have a threshold level of similarity to create a color matching effect.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: July 23, 2019
    Assignee: VIAVI Solutions Inc.
    Inventors: Vladimir P. Raksha, Cornelius Jan Delst
  • SECURITY INK BASED SECURITY FEATURE
    Publication number: 20180170094
    Abstract: A security article may include a substrate. The security article may include a layer of security ink. The layer of security ink may include a set of color-shifting interference particles. The security article may include a layer of magnetic color-shifting ink. The layer of magnetic color-shifting ink may include a set of magnetically aligned magnetic particles. A color-shifting property of the layer of security ink and a color-shifting property of the layer of magnetic color-shifting ink may have a threshold level of similarity to create a color matching effect.
    Type: Application
    Filed: December 4, 2017
    Publication date: June 21, 2018
    Inventors: Vladimir P. Raksha, Cornelius Jan Delst