Inventor · disambiguated record
Manfred Grundei
Also filed as: GRUNDEI MANFRED
20 granted patents·739 citations·filing 1981–2004
96Inventor score
Top patents by PatentIndex Score
20 records- 0197US5398787ADamping pilot valve having vibration damper-related characteristic curvesFICHTEL & SACHS AG·Filed 1993·Granted Mar 21, 1995·137 cites·28 claims
- 0295US6651787B2Vibration damperMANNESMANN SACHS AG·Filed 2001·Granted Nov 25, 2003·53 cites·20 claims
- 0394US6814193B2Vibration damper with a hydraulic pressure stopZF SACHS AG·Filed 2003·Granted Nov 9, 2004·48 cites·13 claims
- 0488US4401196AHydraulic vibration damper with noise reduction damping valvesFICHTEL & SACHS AG·Filed 1981·Granted Aug 30, 1983·47 cites·12 claims
- 0586US5971117APiston-cylinder aggregate with displacement-dependent dampening force fieldFICHTEL & SACHS AG·Filed 1997·Granted Oct 26, 1999·69 cites·4 claims
- 0686US4782925ADouble-tube vibration damperFICHTEL & SACHS AG·Filed 1986·Granted Nov 8, 1988·47 cites·22 claims
- 0783US5615756AShock absorber for a motor vehicle, which shock absorber has a piston valveFICHTEL & SACHS AG·Filed 1995·Granted Apr 1, 1997·51 cites·15 claims
- 0880US5937976AVibration damper with restrictor plateMANNESMANN SACHS AG·Filed 1997·Granted Aug 17, 1999·39 cites·20 claims
- 0979US4993524ADamping valve unit for a hydraulic oscillation damperFICHTEL & SACHS AG·Filed 1989·Granted Feb 19, 1991·41 cites·8 claims
- 1077US6206152B1Vibration damper with variable damping forceMANNESMANN SACHS AG·Filed 1999·Granted Mar 27, 2001·35 cites·2 claims
- 1174US5785160APiston with direction-dependent advance opening cross sectionsFICHTEL & SACHS AG·Filed 1996·Granted Jul 28, 1998·33 cites·20 claims
- 1274US4485899AShock absorber unit for vehiclesFICHTEL & SACHS AG·Filed 1982·Granted Dec 4, 1984·28 cites·6 claims
- 1372US6076814ASpring strut for vehiclesMANNESMANN SACHS AG·Filed 1998·Granted Jun 20, 2000·28 cites·13 claims
- 1470US7111711B2Vibration damper with stroke-dependent damping forceZF SACHS AG·Filed 2004·Granted Sep 26, 2006·13 cites·26 claims
- 1568US5509512AShock absorber with adjustable damping with controlled damping characteristicsFICHTEL & SACHS AG·Filed 1994·Granted Apr 23, 1996·29 cites·1 claims
- 1663US7104369B2Vibration damper with stroke-dependent damping forceZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2004·Granted Sep 12, 2006·10 cites·14 claims
- 1755US5730263AVibration damperFICHTEL & SACHS AG·Filed 1996·Granted Mar 24, 1998·17 cites·20 claims
- 1853US6540051B2Damping force device with adjustable damping forceMANNESMANN SACHS AG·Filed 2000·Granted Apr 1, 2003·7 cites·13 claims
- 1934US6015030AVibration damper with variable damping forceMANNESMANN SACHS AG·Filed 1997·Granted Jan 18, 2000·4 cites·8 claims
- 2027US5655634AShock absorbers and vibration dampers; and shock absorbers and vibration dampers with a piston with a piston ring; and a cyclinder with a piston with a piston ringFICHTEL & SACHS AG·Filed 1996·Granted Aug 12, 1997·3 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →