Inventor
ULM HEINZ
DE4 patents
Patents
4 patentsUS6869328B2Mar 22, 2005
Electrodes, method for production thereof and spark plugs with such an electrode
BOSCH GMBH ROBERT16 citations82
US6630771B1Oct 7, 2003
Spark plug electrode including a profiled noble-metal part
BOSCH GMBH ROBERT12 citations68
US6762539B2Jul 13, 2004
Spark plug for an internal combustion engine and method for production of a middle electrode for an internal combustion engine spark plug
BOSCH GMBH ROBERT2 citations61
US7192324B2Mar 20, 2007
Method for producing a spark plug electrode
BOSCH GMBH ROBERT2 citations57