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Klaus Drefahl
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Hanua, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Motor vehicle steering wheel
Patent number
6,854,356
Issue date
Feb 15, 2005
TRW Automotive Safety Systems GmbH
Klaus Drefahl
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Method for manufacturing a motor vehicle steering wheel
Patent number
6,682,682
Issue date
Jan 27, 2004
TRW Automotive Safety Systems GmbH & Co. KG
Klaus Drefahl
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Steering wheel for motor vehicles
Patent number
6,561,059
Issue date
May 13, 2003
TRW Automotive Safety Systems GmbH & Co. KG
Klaus Drefahl
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Sheet-metal steering wheel
Patent number
5,988,014
Issue date
Nov 23, 1999
TRW Automotive Safety Systems GmbH
Udo Liesenfeld
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Armature for a motor-vehicle steering wheel
Patent number
5,957,003
Issue date
Sep 28, 1999
MST Automotive GmbH
Klaus Drefahl
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Grant
Steering wheel skeleton
Patent number
5,097,720
Issue date
Mar 24, 1992
Kolbenschmidt Aktiengesellschaft
Klaus Drefahl
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Component for absorbing energy
Patent number
5,040,646
Issue date
Aug 20, 1991
Kolbenschmidt Aktiengesellschaft
Klaus Drefahl
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Installable component for absorbing energy
Patent number
5,005,863
Issue date
Apr 9, 1991
Kolbenschmidt Aktiengesellschaft
Klaus Drefahl
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Gas cooler with multiply deformed lead tubes
Patent number
4,332,294
Issue date
Jun 1, 1982
Metallgesellschaft Aktiengesellschaft
Klaus Drefahl
F28 - HEAT EXCHANGE IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
Motor vehicle steering wheel
Publication number
20030101842
Publication date
Jun 5, 2003
TRW AutomotiveSafety Systems GmbH & Co. KG
Klaus Drefahl
B60 - VEHICLES IN GENERAL
Information
Patent Application
Motor vehicle steering wheel
Publication number
20030101841
Publication date
Jun 5, 2003
TRW AutomotiveSafety Systems GmbH & Co. KG
Klaus Drefahl
B60 - VEHICLES IN GENERAL
Information
Patent Application
Vehicle steering wheel
Publication number
20020100342
Publication date
Aug 1, 2002
TRW Automotive Safety Systems GmbH & Co. KG
Klaus Drefahl
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS