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:
Sep. 18, 2012
Filed:
May. 28, 2010
Applicants:
Zeying MA, San Diego, CA (US);
Howard A. Doumaux, San Diego, CA (US);
Sivapackia Ganapathiappan, Los Altos, CA (US);
Inventors:
Zeying Ma, San Diego, CA (US);
Howard A. Doumaux, San Diego, CA (US);
Sivapackia Ganapathiappan, Los Altos, CA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein are pigment dispersions and inks formulated using the same; including at least one dispersed pigment, an aqueous carrier; and at least one block copolymer dispersant having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B); at least one block copolymer having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B);