One embodiment of the present invention provides a piston assembly having a piston housing filled with an electrolyte; a housing within the piston housing that divides the piston housing into a first portion and a second portion, the housing having apertures, a shaft connecting the housing to a piston...http://www.google.es/patents/US20090185916?utm_source=gb-gplus-sharePatente US20090185916 - ELECTROKINETIC PUMP DESIGNS AND DRUG DELIVERY SYSTEMS
ELECTROKINETIC PUMP DESIGNS AND DRUG DELIVERY SYSTEMS
Número de solicitud: 12/094,956 Número de publicación: US 2009/0185916 A1 Fecha de presentación: 22 Nov 2006 Patente emitida: US8152477 ( Fecha de emisión 10 Abr 2012)
