YTSILANTI, MI--(MARKET WIRE)--Aug 21, 2007 -- Integrated Sensing Systems, Inc. (ISSYS) has announced that the U.S. Patent Office has granted them a utility patent (US 7,228,735) entitled “Fluid sensing device with integrated bypass and process therefor.” A major hurdle in commercializing micro-fluidic devices has been their limiting low flow rates. This patent describes a new method and design which allow micro-fluidic sensors to monitor and test relatively high flow rates of fluids. This invention greatly reduces the complexity of micro-fluidic packaging for high flow applications.