Inventor

FRIESE KARL-HERMANN

DE76 patents

Patents

50 patents

US5630920AMay 20, 1997

Electrochemical sensor for determining the oxygen concentration in gas mixtures

BOSCH GMBH ROBERT153 citations99

US5885429AMar 23, 1999

Electrochemical measuring sensor and method for producing an electrochemical measuring sensor

BOSCH GMBH ROBERT116 citations96

US5709786AJan 20, 1998

Sintered solid electrolyte having a high oxygen-ion conductivity

BOSCH GMBH ROBERT55 citations96

US5142266AAug 25, 1992

Ntc temperature sensor and process for producing ntc temperature sensing elements

BOSCH GMBH ROBERT59 citations96

US4296148AOct 20, 1981

Method to apply multiple layers, including an electrode layer, on a sintered or pre-sintered ion conductive solid electrolyte body

BOSCH GMBH ROBERT57 citations96

US4282080AAug 4, 1981

Electrochemical sensor, particularly for oxygen determination in combustion gases

BOSCH GMBH ROBERT63 citations95

US4021326AMay 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

US5686654ANov 11, 1997

Measuring sensor for determining the oxygen content in gas mixtures

BOSCH GMBH ROBERT35 citations93

US5681784AOct 28, 1997

Thermal shock resistant ceramic

BOSCH GMBH ROBERT21 citations93

US5628848AMay 13, 1997

Process for the production of composite systems having at least two inorganic ceramic layers

BOSCH GMBH ROBERT20 citations93

US5486279AJan 23, 1996

Sensor element for limit current sensors to determine the λ-value of gas mixtures

BOSCH GMBH ROBERT37 citations93

US5181007AJan 19, 1993

Ptc temperature sensor for use in an exhaust gas system

BOSCH GMBH ROBERT40 citations93

US6408680B2Jun 25, 2002

Sensor and method for the manufacture

BOSCH GMBH ROBERT19 citations92

US6347543B1Feb 19, 2002

Measuring sensor and method for its fabrication

BOSCH GMBH ROBERT27 citations92

US6164120ADec 26, 2000

Detector and method for the production thereof

BOSCH GMBH ROBERT35 citations92

US5846391ADec 8, 1998

Seal for a sensor element of a gas sensor

BOSCH GMBH ROBERT37 citations92

US5795454AAug 18, 1998

Seal for a sensor element of a gas sensor

BOSCH GMBH ROBERT42 citations92

US5698267ADec 16, 1997

Method for fabricating high-activity electrodes for exhaust gas sensors

BOSCH GMBH ROBERT24 citations92

US5670032ASep 23, 1997

Electro-chemical measuring sensor with a potential-free sensor element and method for producing it

BOSCH GMBH ROBERT25 citations92

US5507174AApr 16, 1996

Polarographic sensor

BOSCH GMBH ROBERT23 citations92

US5505837AApr 9, 1996

Sensor arrangement for determining gas components and/or gas concentrations of gas mixtures

BOSCH GMBH ROBERT43 citations92

US5476001ADec 19, 1995

Sensor for determining gas components and/or gas concentrations of gas mixtures

BOSCH GMBH ROBERT52 citations92

US5474665ADec 12, 1995

Measuring sensor for determining the oxygen content of gas mixtures

BOSCH GMBH ROBERT25 citations92

US5473304ADec 5, 1995

Method of protecting catalytic converters for exhaust gas purification and heat tone sensor for implementing the method

BOSCH GMBH ROBERT28 citations92

US5334350AAug 2, 1994

Resistance probe for determining gas compositions and method of producing it

BOSCH GMBH ROBERT31 citations92

US5172466ADec 22, 1992

Process for producing ptc temperature sensor elements for ptc temperature sensor

BOSCH GMBH ROBERT33 citations92

US5137615AAug 11, 1992

Sensor element for limiting current sensors for determination of the λ value of gas mixtures

BOSCH GMBH ROBERT27 citations92

US4963112AOct 16, 1990

Method of production of a spark plug for internal combustion engines

BOSCH GMBH ROBERT29 citations92

US4406968ASep 27, 1983

Sparkplug for internal combustion engine

BOSCH GMBH ROBERT29 citations92

US4339320AJul 13, 1982

Heated gas composition sensor structure

BOSCH GMBH ROBERT30 citations92

US4283261AAug 11, 1981

Electrochemical sensor structure to determine oxygen content in combustion exhaust gases

BOSCH GMBH ROBERT50 citations92

US4221650ASep 9, 1980

Solid electrolyte oxygen sensors

BOSCH GMBH ROBERT45 citations92

US5310575AMay 10, 1994

Method of making a porous ceramic protective layer on an electrode of an electrochemical sensor for exposure to hot gas

BOSCH GMBH ROBERT32 citations91

US4798991AJan 17, 1989

Surface-gap spark plug for internal combustion engines

BOSCH GMBH ROBERT30 citations91

US4283441AAug 11, 1981

Method of making an ion conductive gas sensor body with a cermet electrode thereon

BOSCH GMBH ROBERT46 citations91

US5368713ANov 29, 1994

Laminated system for gas sensors and process for producing it

BOSCH GMBH ROBERT30 citations89

US5731030AMar 24, 1998

Method of determining the transferred layer mass during thermal spraying methods

BOSCH GMBH ROBERT20 citations86

US5380424AJan 10, 1995

Sensor with a catalytically active protective layer for determining the oxygen content in gases, and process for manufacturing such a sensor

BOSCH GMBH ROBERT19 citations82

US4939409AJul 3, 1990

Spark plug with a surface discharge section

BOSCH GMBH ROBERT22 citations82

US4354912AOct 19, 1982

Solid electrochemical sensor

BOSCH GMBH ROBERT23 citations82

US4347113AAug 31, 1982

Oxygen content exhaust gas sensor, and method of its manufacture

BOSCH GMBH ROBERT25 citations81

US4265724AMay 5, 1981

Electrochemical sensor, particularly oxygen sensor to determine exhaust gas composition from automotive internal combustion engines

BOSCH GMBH ROBERT25 citations80

US4539503ASep 3, 1985

Rapid-heating, high-temperature-stable spark plug for internal combustion engines

BOSCH GMBH ROBERT24 citations78

US6367309B1Apr 9, 2002

Method of producing an insulation layer, and sensor

BOSCH GMBH ROBERT7 citations74

US6223583B1May 1, 2001

Sensor element seal for a detector

BOSCH GMBH ROBERT12 citations74

US5998012ADec 7, 1999

Ceramic layer systems, particularly for gas sensors

BOSCH GMBH ROBERT8 citations74

Showing the top 50 of 76 patents by PatentIndex Score.

FRIESE KARL-HERMANN

Patents

Electrochemical sensor for determining the oxygen concentration in gas mixtures

Electrochemical measuring sensor and method for producing an electrochemical measuring sensor

Sintered solid electrolyte having a high oxygen-ion conductivity

Ntc temperature sensor and process for producing ntc temperature sensing elements

Method to apply multiple layers, including an electrode layer, on a sintered or pre-sintered ion conductive solid electrolyte body

Electrochemical sensor, particularly for oxygen determination in combustion gases

Electro-chemical sensor

Methods for producing oxygen-sensing element, particularly for use with internal combustion engine exhaust emission analysis

Measuring sensor for determining the oxygen content in gas mixtures

Thermal shock resistant ceramic

Process for the production of composite systems having at least two inorganic ceramic layers

Electrochemical measuring probe

Exhaust gas sensor and method of producing the same

Temperature sensor and method for producing temperature sensor elements

Sensor element for limit current sensors to determine the λ-value of gas mixtures

Ptc temperature sensor for use in an exhaust gas system

Sensor and method for the manufacture

Measuring sensor and method for its fabrication

Detector and method for the production thereof

Seal for a sensor element of a gas sensor

Seal for a sensor element of a gas sensor

Method for fabricating high-activity electrodes for exhaust gas sensors

Electro-chemical measuring sensor with a potential-free sensor element and method for producing it

Polarographic sensor

Sensor arrangement for determining gas components and/or gas concentrations of gas mixtures

Sensor for determining gas components and/or gas concentrations of gas mixtures

Measuring sensor for determining the oxygen content of gas mixtures

Method of protecting catalytic converters for exhaust gas purification and heat tone sensor for implementing the method

Resistance probe for determining gas compositions and method of producing it

Process for producing ptc temperature sensor elements for ptc temperature sensor

Sensor element for limiting current sensors for determination of the λ value of gas mixtures

Method of production of a spark plug for internal combustion engines

Sparkplug for internal combustion engine

Heated gas composition sensor structure

Electrochemical sensor structure to determine oxygen content in combustion exhaust gases

Solid electrolyte oxygen sensors

Method of making a porous ceramic protective layer on an electrode of an electrochemical sensor for exposure to hot gas

Surface-gap spark plug for internal combustion engines

Method of making an ion conductive gas sensor body with a cermet electrode thereon

Laminated system for gas sensors and process for producing it

Method of determining the transferred layer mass during thermal spraying methods

Sensor with a catalytically active protective layer for determining the oxygen content in gases, and process for manufacturing such a sensor

Spark plug with a surface discharge section

Solid electrochemical sensor

Oxygen content exhaust gas sensor, and method of its manufacture

Electrochemical sensor, particularly oxygen sensor to determine exhaust gas composition from automotive internal combustion engines

Rapid-heating, high-temperature-stable spark plug for internal combustion engines

Method of producing an insulation layer, and sensor

Sensor element seal for a detector

Ceramic layer systems, particularly for gas sensors