Electrokinetic pump
Patent 6770183 Issued on August 3, 2004. Estimated Expiration Date: 
July 26, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 26, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3923426 Controlled fluid transport in microfabricated polymeric substrates Electokinetic high pressure hydraulic system Electrokinetic high pressure hydraulic system Patent #: 6019882 InventorsAssigneeApplicationNo. 09916717 filed on 07/26/2001US Classes:204/600, Electrophoretic or electro-osmotic apparatus417/48ELECTRICAL OR GETTER TYPEExaminersPrimary: Olsen, Kaj K.Attorney, Agent or FirmInternational ClassesG01N 27447F04F 1100 AbstractAn electrokinetic pump in which the porous dielectric medium of conventional electrokinetic pumps is replaced by a patterned microstructure. The patterned microstructure is fabricated by lithographic patterning and etching of a substrate and is formed by features arranged so as to create an array of microchannels. The microchannels have dimensions on the order of the pore spacing in a conventional porous dielectric medium. Embedded unitary electrodes are vapor deposited on either end of the channel structure to provide the electric field necessary for electroosmotic flow. |
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