Inventor
POLLNER RUDOLF
DE17 patents
Patents
17 patentsUS4021326AMay 3, 1977
Electro-chemical sensor
BOSCH GMBH ROBERT103 citations94
US3978006AAug 31, 1976
Methods for producing oxygen-sensing element, particularly for use with internal combustion engine exhaust emission analysis
BOSCH GMBH ROBERT82 citations94
US6380664B1Apr 30, 2002
Spark plug having an internal conductor configuration
BOSCH GMBH ROBERT34 citations92
US4406968ASep 27, 1983
Sparkplug for internal combustion engine
BOSCH GMBH ROBERT29 citations92
US4097977AJul 4, 1978
Method to attach the center electrode into a ceramic insulator body of spark plugs
BOSCH GMBH ROBERT32 citations92
US5952770ASep 14, 1999
Spark plug for internal combustion engine
BOSCH GMBH ROBERT26 citations90
US6580202B1Jun 17, 2003
Electrically conductive sealing mass for spark plugs
BOSCH GMBH ROBERT13 citations84
US6559578B1May 6, 2003
Spark plug for an internal combustion engine
BOSCH GMBH ROBERT13 citations83
US4152234AMay 1, 1979
Solid closed ended tubular oxygen sensor
BOSCH GMBH ROBERT18 citations82
US6922007B2Jul 26, 2005
Spark plug with glaze coating
BOSCH GMBH ROBERT8 citations73
US6794802B2Sep 21, 2004
Spark plug for an internal combustion engine and method for producing a spark plug
BOSCH GMBH ROBERT8 citations73
US6455988B1Sep 24, 2002
Spark plug having a particular resistor
BOSCH GMBH ROBERT9 citations73
US4519784AMay 28, 1985
Method of inserting a center electrode in a spark plug insulator
BOSCH GMBH ROBERT15 citations73
US6693053B2Feb 17, 2004
Glass and glass powder mixture and use thereof for the production of a glass ceramic
BOSCH GMBH ROBERT6 citations71
US5565730AOct 15, 1996
Electrically conducting sealing compound for spark plugs
BOSCH GMBH ROBERT10 citations66
US6699807B2Mar 2, 2004
Glass ceramic material, method for producing the same and spark plug containing such a glass ceramic material
BOSCH GMBH ROBERT4 citations60
US7128630B2Oct 31, 2006
Method for manufacturing a spark plug with glaze coating
BOSCH GMBH ROBERT1 citations51