Inventor · disambiguated record
Karl-Hermann Friese
Also filed as: FRIESE KARL · FRIESE KARL H · FRIESE KARL-HERMANN
78 granted patents·2 pending applications·2,233 citations·filing 1973–2006
99Inventor score
Top patents by PatentIndex Score
80 records- 0196US4021326AElectro-chemical sensorBOSCH GMBH ROBERT·Filed 1974·Granted May 3, 1977·103 cites·26 claims
- 0295US5630920AElectrochemical sensor for determining the oxygen concentration in gas mixturesBOSCH GMBH ROBERT·Filed 1995·Granted May 20, 1997·153 cites·14 claims
- 0395US5142266ANtc temperature sensor and process for producing ntc temperature sensing elementsBOSCH GMBH ROBERT·Filed 1988·Granted Aug 25, 1992·59 cites·10 claims
- 0495US4296148AMethod to apply multiple layers, including an electrode layer, on a sintered or pre-sintered ion conductive solid electrolyte bodyBOSCH GMBH ROBERT·Filed 1979·Granted Oct 20, 1981·57 cites·24 claims
- 0594US3978006AMethods for producing oxygen-sensing element, particularly for use with internal combustion engine exhaust emission analysisBOSCH GMBH ROBERT·Filed 1974·Granted Aug 31, 1976·82 cites·15 claims
- 0690US5885429AElectrochemical measuring sensor and method for producing an electrochemical measuring sensorBOSCH GMBH ROBERT·Filed 1996·Granted Mar 23, 1999·116 cites·8 claims
- 0790US5709786ASintered solid electrolyte having a high oxygen-ion conductivityBOSCH GMBH ROBERT·Filed 1993·Granted Jan 20, 1998·55 cites·9 claims
- 0889US4283261AElectrochemical sensor structure to determine oxygen content in combustion exhaust gasesBOSCH GMBH ROBERT·Filed 1979·Granted Aug 11, 1981·50 cites·26 claims
- 0989US4282080AElectrochemical sensor, particularly for oxygen determination in combustion gasesBOSCH GMBH ROBERT·Filed 1980·Granted Aug 4, 1981·63 cites·13 claims
- 1089US4221650ASolid electrolyte oxygen sensorsBOSCH GMBH ROBERT·Filed 1978·Granted Sep 9, 1980·45 cites·11 claims
- 1186US5181007APtc temperature sensor for use in an exhaust gas systemBOSCH GMBH ROBERT·Filed 1988·Granted Jan 19, 1993·40 cites·2 claims
- 1286US4334974AElectrochemical oxygen sensor, particularly for use with exhaust gases of internal combustion engines, and especially for polarographic applicationBOSCH GMBH ROBERT·Filed 1980·Granted Jun 15, 1982·55 cites·14 claims
- 1385US4283441AMethod of making an ion conductive gas sensor body with a cermet electrode thereonBOSCH GMBH ROBERT·Filed 1979·Granted Aug 11, 1981·46 cites·11 claims
- 1484US5172466AProcess for producing ptc temperature sensor elements for ptc temperature sensorBOSCH GMBH ROBERT·Filed 1991·Granted Dec 22, 1992·33 cites·8 claims
- 1580US5476001ASensor for determining gas components and/or gas concentrations of gas mixturesBOSCH GMBH ROBERT·Filed 1993·Granted Dec 19, 1995·52 cites·27 claims
- 1678US4406968ASparkplug for internal combustion engineBOSCH GMBH ROBERT·Filed 1981·Granted Sep 27, 1983·29 cites·15 claims
- 1777US5505837ASensor arrangement for determining gas components and/or gas concentrations of gas mixturesBOSCH GMBH ROBERT·Filed 1994·Granted Apr 9, 1996·43 cites·18 claims
- 1877US5406246ATemperature sensor and method for producing temperature sensor elementsBOSCH GMBH ROBERT·Filed 1991·Granted Apr 11, 1995·43 cites·10 claims
- 1976US5795454ASeal for a sensor element of a gas sensorBOSCH GMBH ROBERT·Filed 1994·Granted Aug 18, 1998·42 cites·14 claims
- 2076US4339320AHeated gas composition sensor structureBOSCH GMBH ROBERT·Filed 1980·Granted Jul 13, 1982·30 cites·11 claims
- 2173US5314604ASensor element for limit current sensors to determine the λ-value of gas mixturesBOSCH GMBH ROBERT·Filed 1991·Granted May 24, 1994·37 cites·7 claims
- 2273US4265724AElectrochemical sensor, particularly oxygen sensor to determine exhaust gas composition from automotive internal combustion enginesBOSCH GMBH ROBERT·Filed 1979·Granted May 5, 1981·25 cites·6 claims
- 2372US6164120ADetector and method for the production thereofBOSCH GMBH ROBERT·Filed 1997·Granted Dec 26, 2000·35 cites·13 claims
- 2472US4963112AMethod of production of a spark plug for internal combustion enginesBOSCH GMBH ROBERT·Filed 1988·Granted Oct 16, 1990·29 cites·12 claims
- 2572US4798991ASurface-gap spark plug for internal combustion enginesBOSCH GMBH ROBERT·Filed 1986·Granted Jan 17, 1989·30 cites·17 claims
- 2672US4347113AOxygen content exhaust gas sensor, and method of its manufactureBOSCH GMBH ROBERT·Filed 1980·Granted Aug 31, 1982·25 cites·18 claims
- 2771US5846391ASeal for a sensor element of a gas sensorBOSCH GMBH ROBERT·Filed 1996·Granted Dec 8, 1998·37 cites·10 claims
- 2871US5423973AExhaust gas sensor and method of producing the sameBOSCH GMBH ROBERT·Filed 1992·Granted Jun 13, 1995·34 cites·5 claims
- 2971US4354912ASolid electrochemical sensorBOSCH GMBH ROBERT·Filed 1980·Granted Oct 19, 1982·23 cites·15 claims
- 3070US5686654AMeasuring sensor for determining the oxygen content in gas mixturesBOSCH GMBH ROBERT·Filed 1995·Granted Nov 11, 1997·35 cites·6 claims
- 3169US5507174APolarographic sensorBOSCH GMBH ROBERT·Filed 1993·Granted Apr 16, 1996·23 cites·7 claims
- 3269US5137615ASensor element for limiting current sensors for determination of the λ value of gas mixturesBOSCH GMBH ROBERT·Filed 1989·Granted Aug 11, 1992·27 cites·11 claims
- 3369US4539503ARapid-heating, high-temperature-stable spark plug for internal combustion enginesBOSCH GMBH ROBERT·Filed 1982·Granted Sep 3, 1985·24 cites·20 claims
- 3468US5334350AResistance probe for determining gas compositions and method of producing itBOSCH GMBH ROBERT·Filed 1990·Granted Aug 2, 1994·31 cites·25 claims
- 3568US4305803AGas sensor construction, particularly to determine oxygen content combustion exhaust gases, particularly from internal combustion enginesBOSCH GMBH ROBERT·Filed 1980·Granted Dec 15, 1981·25 cites·8 claims
- 3667US5310575AMethod of making a porous ceramic protective layer on an electrode of an electrochemical sensor for exposure to hot gasBOSCH GMBH ROBERT·Filed 1992·Granted May 10, 1994·32 cites·8 claims
- 3767US4939409ASpark plug with a surface discharge sectionBOSCH GMBH ROBERT·Filed 1987·Granted Jul 3, 1990·22 cites·5 claims
- 3865US6347543B1Measuring sensor and method for its fabricationBOSCH GMBH ROBERT·Filed 1999·Granted Feb 19, 2002·27 cites·46 claims
- 3965US5368713ALaminated system for gas sensors and process for producing itBOSCH GMBH ROBERT·Filed 1991·Granted Nov 29, 1994·30 cites·14 claims
- 4064US4183798AStabilized zirconium dioxide compositions and oxygen sensors utilizing said compositionsBOSCH GMBH ROBERT·Filed 1978·Granted Jan 15, 1980·16 cites·4 claims
- 4163US5698267AMethod for fabricating high-activity electrodes for exhaust gas sensorsBOSCH GMBH ROBERT·Filed 1996·Granted Dec 16, 1997·24 cites·8 claims
- 4263US5670032AElectro-chemical measuring sensor with a potential-free sensor element and method for producing itBOSCH GMBH ROBERT·Filed 1994·Granted Sep 23, 1997·25 cites·23 claims
- 4362US4292158AOxygen sensor of the polarographic type, particularly for use with internal combustion enginesBOSCH GMBH ROBERT·Filed 1980·Granted Sep 29, 1981·19 cites·18 claims
- 4461US5486279AElectrochemical measuring probeBOSCH GMBH ROBERT·Filed 1994·Granted Jan 23, 1996·23 cites·8 claims
- 4561US5474665AMeasuring sensor for determining the oxygen content of gas mixturesBOSCH GMBH ROBERT·Filed 1994·Granted Dec 12, 1995·25 cites·9 claims
- 4661US5473304AMethod of protecting catalytic converters for exhaust gas purification and heat tone sensor for implementing the methodBOSCH GMBH ROBERT·Filed 1993·Granted Dec 5, 1995·28 cites·15 claims
- 4760US5628848AProcess for the production of composite systems having at least two inorganic ceramic layersBOSCH GMBH ROBERT·Filed 1994·Granted May 13, 1997·20 cites·4 claims
- 4858US5681784AThermal shock resistant ceramicBOSCH GMBH ROBERT·Filed 1995·Granted Oct 28, 1997·21 cites·16 claims
- 4957US6408680B2Sensor and method for the manufactureBOSCH GMBH ROBERT·Filed 1998·Granted Jun 25, 2002·19 cites·16 claims
- 5057US5380424ASensor with a catalytically active protective layer for determining the oxygen content in gases, and process for manufacturing such a sensorBOSCH GMBH ROBERT·Filed 1991·Granted Jan 10, 1995·19 cites·20 claims
Showing the top 50 of 80 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →