Inventor

VON HELMOLT RITTMAR

DE10 patents

⚠️ This page may combine multiple inventors who share the name “VON HELMOLT RITTMAR”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SIEMENS AG

6 patents

US6309774B1Oct 30, 2001

Liquid-cooled fuel cell battery

SIEMENS AG30 citations91

US5498298AMar 12, 1996

Method for preparing a structure having enhanced magnetoresistance, and use of the structure

SIEMENS AG21 citations91

US6299999B1Oct 9, 2001

Intermediate element for thermal, electrical and mechanical connection of two parts

SIEMENS AG24 citations90

US6306533B1Oct 23, 2001

Cooling system for a fuel cell battery

SIEMENS AG12 citations73

US5563331AOct 8, 1996

Magnetoresistive sensor utilizing a sensor material with a perovskite-like crystal structure

SIEMENS AG18 citations72

US6630261B2Oct 7, 2003

Apparatus and method for utilizing the waste heat of an air-cooled fuel cell battery

SIEMENS AG4 citations61

GEN MOTORS CORP

2 patents

US7482076B2Jan 27, 2009

Fuel cell stack humidification method incorporating an accumulation device

GEN MOTORS CORP2 citations61

US6921601B2Jul 26, 2005

Fuel cell stack humidification method incorporating an accumulation device

GEN MOTORS CORP2 citations61

GM GLOBAL TECH OPERATIONS INC

1 patent

US7574996B2Aug 18, 2009

Fuel supply system with a gas adsorption device

GM GLOBAL TECH OPERATIONS INC3 citations61

VON HELMOLT RITTMAR

1 patent

US8454730B2Jun 4, 2013

Method of operating gas storage and supply system

VON HELMOLT RITTMAR3 citations56