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US Patent 7297201 Indelible ink jet ink composition

Patent 7297201 was granted and assigned to Videojet Technologies (company) on November, 2007 by the United States Patent and Trademark Office.

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Patent attributes

Current Assignee

Videojet Technologies (company)

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

John P. Folkers0

Steven D. Looman0

Date of Patent

November 20, 2007

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Patent Application Number

110305040

Date Filed

January 6, 2005

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Patent Primary Examiner

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Patent abstract

Disclosed is an ink jet ink composition that forms indelible images on porous or semiporous substrates. The ink composition comprises a liquid carrier, a first colorant that is soluble in the carrier but insoluble or substantially insoluble in water, and a second colorant composition comprising a pigment, the second colorant composition being dispersible in the carrier. The second colorant composition is insoluble or substantially insoluble in the carrier. The images are difficult or impossible to remove or wash out by the use of aqueous and/or nonaqueous liquids.

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