Inventor · disambiguated record
Ralf Vorndran
Also filed as: VORNDRAN RALF
14 granted patents·144 citations·filing 1995–2002
92Inventor score
Top patents by PatentIndex Score
14 records- 0186US6671602B1Method for manually stipulating the transmission ratio of a continuously variable transmission (CVT)ZF BATAVIA LLC·Filed 2000·Granted Dec 30, 2003·34 cites·23 claims
- 0277US6524210B1Automatic transmissionZF BATAVIA LLC·Filed 2000·Granted Feb 25, 2003·15 cites·20 claims
- 0362US6066069AControl system for an infinitely variable change-speed gear with a torque converter with a lock-up clutchZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1997·Granted May 23, 2000·18 cites·11 claims
- 0460US6997834B2Device for guiding a moveable conical pulley disc of a CVT variatorZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2002·Granted Feb 14, 2006·10 cites·15 claims
- 0560US5961408ADevice for controlling a CVTZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1995·Granted Oct 5, 1999·18 cites·13 claims
- 0659US6527668B2Hydraulic systemZF BATAVIA LLC·Filed 2001·Granted Mar 4, 2003·8 cites·11 claims
- 0751US6173227B1Method of setting the transmission ratio of a continuously variable gearZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1996·Granted Jan 9, 2001·13 cites·15 claims
- 0846US6542803B1Method for determining adjusting speeds in a continuously variable transmissionZF BATAVIA LLC·Filed 2000·Granted Apr 1, 2003·3 cites·8 claims
- 0945US6554737B1Engine speed control via the torque converter lockup clutch of a continuously variable driveZF BATAVIA LLC·Filed 1999·Granted Apr 29, 2003·9 cites·20 claims
- 1042US6424901B1Method of calculating for the speed control of a CVTZF BATAVIA LLC·Filed 2000·Granted Jul 23, 2002·1 cites·5 claims
- 1138US6216075B1Process for determining the operating point of a continuously variable transmissionZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1997·Granted Apr 10, 2001·7 cites·10 claims
- 1233US6434464B1Process for evaluating the driving dynamic request of the driver for the driving strategy of an automatic/automated transmissionZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2001·Granted Aug 13, 2002·0 cites·14 claims
- 1332US5795261AMethod of controlling a continuously variable transmissionZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1995·Granted Aug 18, 1998·4 cites·5 claims
- 1419US6135916AProcess for controlling the pressure of a CVT during a standing startZF FRIEDRICHSHAFEB AG·Filed 1997·Granted Oct 24, 2000·4 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →