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Gerd Frotscher
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Friedrichshafen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Method for operating a parallel drive train of a vehicle
Patent number
7,836,988
Issue date
Nov 23, 2010
ZF Friedrichshafen AG
Ralf Dreibholz
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Method for operating a parallel hybrid drive train of a vehicle
Patent number
7,762,922
Issue date
Jul 27, 2010
ZF Friedrichshafen AG
Ralf Dreibholz
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Method for control of input power distribution in a motor vehicle w...
Patent number
7,469,169
Issue date
Dec 23, 2008
ZF Friedrichshafen AG
Ralf Dreibholz
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Controlling of an automated starting element
Patent number
6,929,580
Issue date
Aug 16, 2005
ZF Friedrichshafen AG
Gerd Frotscher
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Method for controlling an automatic transmission
Patent number
6,366,843
Issue date
Apr 2, 2002
ZF Friedrichshafen AG
Ralf Dreibholz
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Process for automatically co-ordinating the filling operation of sh...
Patent number
6,101,438
Issue date
Aug 8, 2000
ZF Friedirchshafen AG
Kai Staiger
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Error recognition process for automatic gear boxes transmission
Patent number
6,081,760
Issue date
Jun 27, 2000
ZF Friedrichshafen AG
Ralf Dreibholz
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Automatic transmission control method including shifting aberration...
Patent number
5,911,648
Issue date
Jun 15, 1999
ZF Friedrichshafen AG
Ralf Dreibholz
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Process for controlling an automatic transmission
Patent number
5,795,265
Issue date
Aug 18, 1998
ZF Friedrichshafen AG
Hans-Jorg Domian
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
Method for operating a parallel drive train of a vehicle
Publication number
20080016599
Publication date
Jan 17, 2008
ZF Friedrichshafen AG
Ralf Dreibholz
B60 - VEHICLES IN GENERAL
Information
Patent Application
Method for operating a parallel hybrid drive train of a vehicle
Publication number
20070207892
Publication date
Sep 6, 2007
ZF Friedrichshafen AG
Ralf Dreibholz
B60 - VEHICLES IN GENERAL
Information
Patent Application
Oil pump for an automatic transmission of a motor vehicle
Publication number
20050169773
Publication date
Aug 4, 2005
Josef Schwarz
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Method for control of input power distribution in a motor vehicle w...
Publication number
20050038577
Publication date
Feb 17, 2005
Ralf Dreibholz
B60 - VEHICLES IN GENERAL