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:
Feb. 25, 2020
Filed:
May. 29, 2015
Hewlett-packard Development Company, L.p., Fort Collins, CO (US);
Vladek Kasperchik, Corvallis, OR (US);
Paul Joseph Bruinsma, San Diego, CA (US);
Thomas W. Butler, Corvallis, OR (US);
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Abstract
The present disclosure provides a white ink including an aqueous ink vehicle; from 5 wt % to 50 wt % of a white metal oxide pigment having an average particulate size from 75 nm to 2,000 nm and a refractive index of 1.8 to 2.8; and from 0.1 wt % to 15 wt % of fumed oxide particulates having a tertiary agglomerated average particulate size from 20 nm to 750 nm and a refractive index of 1.1 to 1.6. The white ink further includes a polymeric dispersant associated with a surface of the white metal oxide pigment.