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Rolf-Gerhard Fiedler
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Wendlingen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Piston for an internal combustion engine
Patent number
8,794,208
Issue date
Aug 5, 2014
Mahle International GmbH
Rolf-Gerhard Fiedler
F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information
Patent Grant
Oil scraper ring ring groove arrangement for pistons of internal co...
Patent number
7,431,305
Issue date
Oct 7, 2008
Mahle GmbH
Rolf-Gerhard Fiedler
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Oil scraper ring for pistons of internal combustion engines
Patent number
7,396,018
Issue date
Jul 8, 2008
Mahle GmbH
Rolf-Gerhard Fiedler
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Piston for an internal combustion engine and cover ring for the coo...
Patent number
7,387,100
Issue date
Jun 17, 2008
Mahle International GmbH
Rolf-Gerhard Fiedler
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Multipart oil wiping ring for pistons of internal combustion engines
Patent number
7,306,232
Issue date
Dec 11, 2007
Mahle GmbH
Rolf-Gerhard Fiedler
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Oil scraper ring for pistons of internal combustion engines
Patent number
7,261,301
Issue date
Aug 28, 2007
Mahle GmbH
Rolf-Gerhard Fiedler
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
Piston for an internal combustion engine
Publication number
20130008405
Publication date
Jan 10, 2013
MAHLE International GmbH
Rolf-Gerhard FIEDLER
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Piston for an internal combustion engine and cover ring for the coo...
Publication number
20070028863
Publication date
Feb 8, 2007
MAHLE International GmbH
Rolf-Gerhard Fiedler
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Oil scraper ring for pistons of internal combustion engines
Publication number
20070018410
Publication date
Jan 25, 2007
Rolf-Gerhard Fiedler
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Multipart oil wiping ring for pistons of internal combustion engines
Publication number
20060273525
Publication date
Dec 7, 2006
Rolf-Gerhard Fiedler
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...