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:
Jan. 09, 2007
Filed:
Oct. 16, 2003
Applicants:
Shungiong Yue, San Diego, CA (US);
Christian Schmid, Rancho Bernard, CA (US);
Inventors:
Shungiong Yue, San Diego, CA (US);
Christian Schmid, Rancho Bernard, CA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/17 (2006.01);
U.S. Cl.
CPC ...
Abstract
A marking fluid or fixing fluid for inkjet printing consisting a buffering agent with both a first functional group with a pKa at most 1.0 units away from the pH of the marking fluid or fixing fluid and a second functional group with a pKa at least 2.0 pH units away from the pH of the marking fluid or fixing fluid such that at the marking fluid or fixing fluid pH the second functional group is in its completely charged form.