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. 20, 2016
Filed:
Jun. 16, 2010
Applicants:
Zeying MA, San Diego, CA (US);
Robert F. Little, San Diego, CA (US);
Peter C. Morris, San Diego, CA (US);
Inventors:
Zeying Ma, San Diego, CA (US);
Robert F. Little, San Diego, CA (US);
Peter C. Morris, San Diego, CA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D 11/02 (2014.01); C09B 67/22 (2006.01); C09B 67/02 (2006.01); C09C 1/00 (2006.01); C09D 11/322 (2014.01); C09D 11/328 (2014.01); C09D 11/107 (2014.01);
U.S. Cl.
CPC ...
C09D 11/02 (2013.01); C09B 67/0033 (2013.01); C09B 67/0041 (2013.01); C09B 67/0097 (2013.01); C09C 1/00 (2013.01); C09D 11/107 (2013.01); C09D 11/322 (2013.01); C09D 11/328 (2013.01); C01P 2006/60 (2013.01); C01P 2006/62 (2013.01); C01P 2006/63 (2013.01); C01P 2006/64 (2013.01); C01P 2006/65 (2013.01); C01P 2006/66 (2013.01);
Abstract
A blue ink for postage printing, which contains a blue pigment, a black dye, and an aqueous carrier, wherein the weight ratio of blue pigment to black dye is in the range of 50:1 to 2:1. The blue pigment is a copper phthalocyanine pigment or an anthraquinone pigment, and the black dye is an azo dye.