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:
Apr. 19, 2005
Filed:
Oct. 31, 2002
Ashley E. Childs, Corvallis, OR (US);
Jeffrey S. Hess, Corvallis, OR (US);
James Patrick Kearns, Corvallis, OR (US);
Steve D. Napack, Corvallis, OR (US);
Ashley E. Childs, Corvallis, OR (US);
Jeffrey S. Hess, Corvallis, OR (US);
James Patrick Kearns, Corvallis, OR (US);
Steve D. Napack, Corvallis, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A fluid ejection device includes a substrate having a first side and a second side opposite the first side, and a plurality of drop ejecting elements formed on the first side of the substrate. The substrate includes a first opening formed in the first side and a plurality of second openings formed in the second side with each of the second openings communicating with the first opening, wherein the second openings and the first opening are adapted to circulate fluid through the substrate.