Inventor · disambiguated record
Franz Rieger
Also filed as: MAURER HELMUT · REIGER FRANZ · RIEGER FRANZ
46 granted patents·6 pending applications·1,493 citations·filing 1975–2023
99Inventor score
Top patents by PatentIndex Score
52 records- 0199US3969932AMethod and apparatus for monitoring the activity of catalytic reactorsBOSCH GMBH ROBERT·Filed 1975·Granted Jul 20, 1976·131 cites·11 claims
- 0298US6340015B1Fuel injection valve with integrated spark plugBOSCH GMBH ROBERT·Filed 1999·Granted Jan 22, 2002·114 cites·16 claims
- 0398US5983855AFuel injection valve with integrated spark plugBOSCH GMBH ROBERT·Filed 1997·Granted Nov 16, 1999·119 cites·11 claims
- 0496US6748918B2Fuel injector having integrated spark plugBOSCH GMBH ROBERT·Filed 2003·Granted Jun 15, 2004·83 cites·12 claims
- 0596US4967708AFuel injection valveBOSCH GMBH ROBERT·Filed 1988·Granted Nov 6, 1990·71 cites·14 claims
- 0695US6536405B1Fuel injection valve with integrated spark plugBOSCH GMBH ROBERT·Filed 1999·Granted Mar 25, 2003·84 cites·1 claims
- 0792US4419190AMethod and apparatus to measure the operating temperature of solid electrolyte-type gas sensorsBOSCH GMBH ROBERT·Filed 1982·Granted Dec 6, 1983·72 cites·9 claims
- 0892US4418672AFuel supply systemBOSCH GMBH ROBERT·Filed 1981·Granted Dec 6, 1983·36 cites·6 claims
- 0989US6892971B2Fuel injection valveBOSCH GMBH ROBERT·Filed 2002·Granted May 17, 2005·32 cites·10 claims
- 1089US4283261AElectrochemical sensor structure to determine oxygen content in combustion exhaust gasesBOSCH GMBH ROBERT·Filed 1979·Granted Aug 11, 1981·50 cites·26 claims
- 1189US4282080AElectrochemical sensor, particularly for oxygen determination in combustion gasesBOSCH GMBH ROBERT·Filed 1980·Granted Aug 4, 1981·63 cites·13 claims
- 1288US4381748AMethod of regulating combustion in the combustion chambers of an internal combustion engineBOSCH GMBH ROBERT·Filed 1981·Granted May 3, 1983·48 cites·29 claims
- 1387US4132615AInternal combustion engine exhaust gas oxygen sensor and catalyzer combinationBOSCH GMBH ROBERT·Filed 1976·Granted Jan 2, 1979·43 cites·21 claims
- 1486US4334974AElectrochemical 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
- 1581US4294679AFlat electrochemical sensor, and method of its manufactureBOSCH GMBH ROBERT·Filed 1980·Granted Oct 13, 1981·40 cites·34 claims
- 1681US4277323AElectrochemical oxygen sensor, particularly for use in the exhaust system of automotive-type internal combustion enginesBOSCH GMBH ROBERT·Filed 1980·Granted Jul 7, 1981·39 cites·11 claims
- 1777US4155827AElectro-chemical sensor constructionBOSCH GMBH ROBERT·Filed 1978·Granted May 22, 1979·27 cites·13 claims
- 1876US4369748AOptical engine knock sensing systemBOSCH GMBH ROBERT·Filed 1981·Granted Jan 25, 1983·17 cites·15 claims
- 1975US4496455APolarographic sensor and sensing system for determining oxygen content in gasesBOSCH GMBH ROBERT·Filed 1984·Granted Jan 29, 1985·28 cites·7 claims
- 2070US7021568B2Fuel injection valve and method for operating the sameBOSCH GMBH ROBERT·Filed 2001·Granted Apr 4, 2006·18 cites·20 claims
- 2169US4358952AOptical engine knock sensorBOSCH GMBH ROBERT·Filed 1980·Granted Nov 16, 1982·22 cites·11 claims
- 2269US4219399AInternally, electrically heated electrochemical sensing elementBOSCH GMBH ROBERT·Filed 1979·Granted Aug 26, 1980·22 cites·10 claims
- 2368US4413509ACombustion process parameter sensorBOSCH GMBH ROBERT·Filed 1981·Granted Nov 8, 1983·21 cites·7 claims
- 2466US4391691ATemperature compensated polarographic oxygen gas sensor and sensing system, particularly for automotive applicationBOSCH GMBH ROBERT·Filed 1981·Granted Jul 5, 1983·22 cites·15 claims
- 2565US4426986AApparatus for controlling the exhaust gas recirculation rate in an internal combustion engineBOSCH GMBH ROBERT·Filed 1982·Granted Jan 24, 1984·16 cites·1 claims
- 2665US4425788ACombustion monitoring system for multi-cylinder internal combustion engineBOSCH GMBH ROBERT·Filed 1982·Granted Jan 17, 1984·20 cites·13 claims
- 2765US4212720AElectrically heated electrochemical sensor construction, particularly to determine oxygen concentration in exhaust gases from combustion enginesBOSCH GMBH ROBERT·Filed 1978·Granted Jul 15, 1980·18 cites·8 claims
- 2864US4075992AMethod and apparatus for reducing the toxic components in exhaust gasBOSCH GMBH ROBERT·Filed 1975·Granted Feb 28, 1978·11 cites·4 claims
- 2963US4699695ANickel plating bathRIEGER FRANZ METALLVEREDELUNG·Filed 1986·Granted Oct 13, 1987·13 cites·9 claims
- 3062US4404841AOptical combustion sensor systemBOSCH GMBH ROBERT·Filed 1982·Granted Sep 20, 1983·18 cites·18 claims
- 3161US6814309B2Fuel injectorBOSCH GMBH ROBERT·Filed 2001·Granted Nov 9, 2004·9 cites·13 claims
- 3260US4452072ACombustion condition sensorBOSCH GMBH ROBERT·Filed 1982·Granted Jun 5, 1984·16 cites·10 claims
- 3358US4786324ANickel-plating bathRIEGER FRANZ METALLVEREDELUNG·Filed 1987·Granted Nov 22, 1988·10 cites·13 claims
- 3458US4514656ACombination sparkplug and combustion process sensorBOSCH GMBH ROBERT·Filed 1982·Granted Apr 30, 1985·16 cites·18 claims
- 3557US4422321ACombustion process sensor constructionBOSCH GMBH ROBERT·Filed 1981·Granted Dec 27, 1983·14 cites·18 claims
- 3656US4355618AMethod and apparatus for obtaining a control variable for the closed-loop control of the fuel-air ratio in the operating mixture of internal combustion enginesBOSCH GMBH ROBERT·Filed 1980·Granted Oct 26, 1982·11 cites·5 claims
- 3754US4601276AMethod of and device for regulating fuel-and-air mixture supplied to an internal combustion engineBOSCH GMBH ROBERT·Filed 1983·Granted Jul 22, 1986·10 cites·3 claims
- 3851US4291572AMethod and system for controlling the temperature of a heat measuring sensor especially in motor vehiclesBOSCH GMBH ROBERT·Filed 1980·Granted Sep 29, 1981·14 cites·10 claims
- 3951US4130098AMethod and apparatus for reducing the toxic components in exhaust gasBOSCH GMBH ROBERT·Filed 1977·Granted Dec 19, 1978·9 cites·8 claims
- 4046US4394855AInternal combustion engine with externally supplied ignition having an ignition chamber associated with the main combustion chamberBOSCH GMBH ROBERT·Filed 1981·Granted Jul 26, 1983·9 cites·14 claims
- 4145US2008141429A1HelmetSCHARPENACK GEORG·Filed 2007·Application pending·0 cites
- 4243US2025089838A1Inner system for a safety helmetULBRICHTS GMBH·Filed 2023·Application pending·0 cites
- 4342US4333439AApparatus for controlling the exhaust gas recirculation rate in an internal combustion engineBOSCH GMBH ROBERT·Filed 1980·Granted Jun 8, 1982·6 cites·9 claims
- 4441US6766968B2Fuel injection valveBOSCH GMBH ROBERT·Filed 2001·Granted Jul 27, 2004·1 cites·11 claims
- 4537US5380451ABath for the pre-treatment of light metalsFiled 1993·Granted Jan 10, 1995·4 cites·14 claims
- 4636US4506186ASpark plug and optical combustion sensor combinationBOSCH GMBH ROBERT·Filed 1982·Granted Mar 19, 1985·6 cites·19 claims
- 4735US5534296AProcess for the pre-treatment of light metals and articles producedFiled 1994·Granted Jul 9, 1996·3 cites·54 claims
- 4835US4499867AArrangement for controlling a internal combustion engine equipped with glow plugsBOSCH GMBH ROBERT·Filed 1984·Granted Feb 19, 1985·2 cites·6 claims
- 4934US2022104573A1Visor for a ballistic protective helmetULBRICHTS GMBH·Filed 2021·Application pending·0 cites
- 5034US2003080202A1Fuel-injection systemFiled 2001·Application pending·0 cites
Showing the top 50 of 52 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Franz Rieger files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →