US Patent 7699898 Metal complex dye mixtures

Patent 7699898 was granted and assigned to Dystar on April, 2010 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

‌

Dystar

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7699898

Patent Inventor Names

Thomas Ruchser0

Andreas Giehl0

Oliver Steinau0

Date of Patent

April 20, 2010

Patent Application Number

11908981

Date Filed

March 15, 2006

Patent Primary Examiner

‌

Eisa B Elhilo

Patent abstract

Dye mixtures comprising one or more, such as two or three, preferably 1 or 2, dyes of the formula (1) and at least 2 dyes of the formula (2)

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