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Ralf Vorndran
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Eriskirch, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Device for guiding a moveable conical pulley disc of a CVT variator
Patent number
6,997,834
Issue date
Feb 14, 2006
ZF Friedrichshafen AG
Ralf Vorndran
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method for manually stipulating the transmission ratio of a continu...
Patent number
6,671,602
Issue date
Dec 30, 2003
ZF Batavia L.L.C.
Patrick Speicher
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Engine speed control via the torque converter lockup clutch of a co...
Patent number
6,554,737
Issue date
Apr 29, 2003
ZF Batavia L.L.C.
Ralf Vorndran
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method for determining adjusting speeds in a continuously variable...
Patent number
6,542,803
Issue date
Apr 1, 2003
ZF Batavia L.L.C.
Ralf Vorndran
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Hydraulic system
Patent number
6,527,668
Issue date
Mar 4, 2003
ZF Batavia L.L.C.
Ralf Vorndran
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Automatic transmission
Patent number
6,524,210
Issue date
Feb 25, 2003
ZF Batavia, L.L.C.
Ralf Vorndran
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Process for evaluating the driving dynamic request of the driver fo...
Patent number
6,434,464
Issue date
Aug 13, 2002
ZF Friedrichshafen AG
Patrick Speicher
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Method of calculating for the speed control of a CVT
Patent number
6,424,901
Issue date
Jul 23, 2002
ZF Batavia L.L.C.
Ralf Vorndran
G05 - CONTROLLING REGULATING
Information
Patent Grant
Process for determining the operating point of a continuously varia...
Patent number
6,216,075
Issue date
Apr 10, 2001
ZF Friedrichshafen AG
Patrick Speicher
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Method of setting the transmission ratio of a continuously variable...
Patent number
6,173,227
Issue date
Jan 9, 2001
ZF Friedrichshafen AG
Patrick Speicher
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Process for controlling the pressure of a CVT during a standing start
Patent number
6,135,916
Issue date
Oct 24, 2000
ZF Friedrichshafeb AG
Ralf Vorndran
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Control system for an infinitely variable change-speed gear with a...
Patent number
6,066,069
Issue date
May 23, 2000
ZF Friedrichshafen AG
Ralf Vorndran
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Device for controlling a CVT
Patent number
5,961,408
Issue date
Oct 5, 1999
ZF Friedrichshafen AG
Hubert Konig
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method of controlling a continuously variable transmission
Patent number
5,795,261
Issue date
Aug 18, 1998
ZF Friedrichshafen AG
Patrick Speicher
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
Device for guiding a moveable conical pulley disc of a CVT variator
Publication number
20030013566
Publication date
Jan 16, 2003
Ralf Vorndran
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Process for evaluating the driving dynamic request of the driver fo...
Publication number
20020049525
Publication date
Apr 25, 2002
Patrick Speicher
B60 - VEHICLES IN GENERAL
Information
Patent Application
Hydraulic system
Publication number
20020004436
Publication date
Jan 10, 2002
Ralf Vorndran
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...