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. 12, 2005
Filed:
Oct. 31, 2002
Victor M. Aguero, Menlo Park, CA (US);
Elizabeth J. Brackmann, Portola Valley, CA (US);
Jose P. Joseph, Palo Alto, CA (US);
Christopher E. Holland, San Carlos, CA (US);
Charles A. Spindt, Menlo Park, CA (US);
Paul R. Schwoebel, Basque Farms, NM (US);
Eric M. Pearson, Redwood City, CA (US);
Victor M. Aguero, Menlo Park, CA (US);
Elizabeth J. Brackmann, Portola Valley, CA (US);
Jose P. Joseph, Palo Alto, CA (US);
Christopher E. Holland, San Carlos, CA (US);
Charles A. Spindt, Menlo Park, CA (US);
Paul R. Schwoebel, Basque Farms, NM (US);
Eric M. Pearson, Redwood City, CA (US);
SRI International, Menlo Park, CA (US);
Abstract
Described are a method and system for dispensing a fluid. A fluid-dispensing device includes a substrate and a plurality of nozzles formed in the substrate. Each nozzle has an open-ended tip and a fluid-conducting channel between the tip and a source of fluid. A non-conducting spacer is on the substrate and electrically isolates a gate electrode from the substrate. The gate electrode is located adjacent to the tip of at least one of the nozzles to effect dispensing of the fluid in that nozzle in response to a voltage applied between the gate electrode and the nozzle or fluid in the nozzle. In one embodiment, the gate electrode includes a plurality of individually addressable gate electrodes used for selectively actuating nozzles.