Krewer

Joerg Krewer, Pattensen DE

Patent application number	Description	Published
20090299995	METHOD FOR OUTPUTTING DATA RECORDS, AND DEVICE THEREFOR - A method and a device are provided for outputting data records on the basis of input data records entered by a user, a set of data records present in a database being structured via a tree structure, and search criteria and filter information items being assigned to nodes in the tree structure which are not terminal nodes.	12-03-2009
20100205218	NAVIGATION DEVICE - A navigation device for a vehicle, in particular for a motor vehicle, has a hierarchical database containing a data tree with hierarchically arranged data and at least one geographic database containing data that are arranged in geographic subregions. A reference to at least one geographic database is provided in the hierarchical database.	08-12-2010
20100292913	Storage medium for map data, method for generating maps, and navigation device - A storage medium on which geographic data of a geographic region are stored together as map units, a corresponding method for generating a map from the geographic data, and a corresponding navigation device. In order to reduce the amount of data to be processed, the map units are structured hierarchically, map units of an n	11-18-2010

Patent application number	Description	Published
20090191433	FUEL CELL SYSTEM AND OPERATING METHOD THEREOF - A fuel cell system operating method in which a temperature of a fuel cell power generator is measured when the fuel cell power generator stops generating power, and it is determined whether the temperature is within a predetermined temperature range, and a reverse current is supplied to the fuel cell power generator upon restart if the temperature was determined to be outside of the predetermined range so as to increase the efficiency of the system after restarting the fuel cell power generator after being exposed to extreme conditions. Subsequently, the reverse current supply to the fuel cell power generator stops and electric energy is generated through an electrochemical reaction between hydrogen and oxygen in the fuel cell power generator.	07-30-2009

Patent application number	Description	Published
20080233449	MIXING TANK AND FUEL CELL SYSTEM POSSESSING THE SAME - A fuel cell system possessing a mixing tank for recovering an unreacted fuel, the mixing tank being capable of effectively condensing a stack emission product without increasing its volume. The mixing tank includes a fuel supply port for supplying a concentrated fuel; a fluid inlet port for supplying a fluid discharged from an external fuel cell stack; a chamber for mixing the concentrated fuel with the fluid discharged from the fuel cell stack; a stack supply port for supplying a mixed fuel in the chamber to the fuel cell stack; and a chamber cooling member for cooling the chamber.	09-25-2008