Inventor · disambiguated record
Johann Merz
Also filed as: MERZ JOHANN
23 granted patents·1 pending application·245 citations·filing 1979–2008
95Inventor score
Top patents by PatentIndex Score
24 records- 0180US4437819AControllable vane pumpZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1982·Granted Mar 20, 1984·30 cites·6 claims
- 0276US4344717AMeans for mutual positioning of membersZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1981·Granted Aug 17, 1982·27 cites·5 claims
- 0375US4516784ASeal assembly with radially undulated sealing elementZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1984·Granted May 14, 1985·26 cites·9 claims
- 0467US7055644B2Power steering system with hydraulic power assistanceZF LENKSYSTEME GMBH·Filed 2004·Granted Jun 6, 2006·16 cites·2 claims
- 0567US4752195ARotary vane type of pump with elongated damping chambersZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1985·Granted Jun 21, 1988·19 cites·8 claims
- 0663US6254358B1Positive-displacement pumpZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2000·Granted Jul 3, 2001·7 cites·5 claims
- 0763US4709666ARegulatable fan driveZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1986·Granted Dec 1, 1987·20 cites·14 claims
- 0860US5466135ARotary vane-cell pumpZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1993·Granted Nov 14, 1995·26 cites·2 claims
- 0959US4416598ARotary vane pump with pressure biased flow directing end plateZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1981·Granted Nov 22, 1983·16 cites·4 claims
- 1055US4443169AGear pumpZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1981·Granted Apr 17, 1984·14 cites·5 claims
- 1147US7845915B2Rotary pumpZF LENKSYSTEME GMBH·Filed 2008·Granted Dec 7, 2010·0 cites·2 claims
- 1244US4385870ARadial piston pumpZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1981·Granted May 31, 1983·8 cites·7 claims
- 1341US6095773AVane cell pumpZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1997·Granted Aug 1, 2000·7 cites·20 claims
- 1437US6179157B1ContainerZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1997·Granted Jan 30, 2001·6 cites·13 claims
- 1537US2007144821A1Power steering system with electric motor and a vehicle which is equipped with itMERZ JOHANN·Filed 2004·Application pending·0 cites
- 1636US4553908AHigh pressure pump with a flow control valveZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1981·Granted Nov 19, 1985·5 cites·3 claims
- 1735US5795142AHydraulically balanced vane cell pumpZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1997·Granted Aug 18, 1998·5 cites·1 claims
- 1833US4380272AOil reservoir particularly for hydraulic steering systemZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1980·Granted Apr 19, 1983·3 cites·8 claims
- 1932US6033190AFlat faced bearing housing engaging flat faced pump rotor housingZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1997·Granted Mar 7, 2000·3 cites·4 claims
- 2032US4310289AHydraulically operated steering system with pressure controlZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1979·Granted Jan 12, 1982·2 cites·4 claims
- 2130US4676333AServo steering for vehiclesZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1986·Granted Jun 30, 1987·2 cites·18 claims
- 2229US5800135ASliding vane pump using a drive shaft as a flow divider for enhanced oil circulationZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1995·Granted Sep 1, 1998·1 cites·4 claims
- 2325US5086942ACover with locking deviceZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1988·Granted Feb 11, 1992·2 cites·9 claims
- 2419US6004110ADisplacement pumpZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1998·Granted Dec 21, 1999·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →