The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 2010
Filed:
Jul. 29, 2009
Applicants:
Jose Esteban Valentini, West Chester, PA (US);
Kuo Hsiung Kung, Wilmington, DE (US);
James A. Silver, Kennett Square, PA (US);
William Thomas Hall, Hockessin, DE (US);
Inventors:
Jose Esteban Valentini, West Chester, PA (US);
Kuo Hsiung Kung, Wilmington, DE (US);
James A. Silver, Kennett Square, PA (US);
William Thomas Hall, Hockessin, DE (US);
Assignee:
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D 11/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention pertains to an aqueous-based black inkjet ink comprising a mixture of Direct Black 168, Acid Blue 290 and a certain magenta dye. The ink exhibits good color neutrality and gray scale.