Patents by Inventor Tianyan Xie Hartlep

Tianyan Xie Hartlep 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 paper authentication system with dual instant color
    Patent number: 7648842
    Abstract: The present invention relates to a unique dual color security paper authentication system. The authenticating system comprises the combination of a security paper together with a coordinated applicator. The paper contains a starch, an iodide salt and an acidic developer resin. The applicator of the system comprises two authenticating solutions. The first authenticating solution comprises one or more of a sulfonamide and a copper salt dispersed in a solvent. The second authenticating solution comprises one or more of a leuco and fluoran dye precursor dispersed in a solvent. On applying the authenticating solutions to authentic security paper, a first color of a starch iodine is expressed and a second color of a leuco or fluoran dye is expressed.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: January 19, 2010
    Assignee: Appleton Papers Inc.
    Inventor: Tianyan Xie Hartlep
  • Security paper authentication system with dual instant color
    Publication number: 20080248948
    Abstract: The present invention relates to a unique dual color security paper authentication system. The authenticating system comprises the combination of a security paper together with a coordinated applicator. The paper contains a starch, an iodide salt and an acidic developer resin. The applicator of the system comprises two authenticating solutions. The first authenticating solution comprises one or more of a sulfonamide and a copper salt dispersed in a solvent. The second authenticating solution comprises one or more of a leuco and fluoran dye precursor dispersed in a solvent. On applying the authenticating solutions to authentic security paper, a first color of a starch iodine is expressed and a second color of a leuco or fluoran dye is expressed.
    Type: Application
    Filed: April 4, 2007
    Publication date: October 9, 2008
    Applicant: Appleton Papers Inc.
    Inventor: Tianyan Xie Hartlep