Assignee
MAHLE GMBH
DE143 patents
Top patents by PatentIndex Score
US5778533AJul 14, 1998
Method of producing a one-part cooling duct piston
MAHLE GMBH80 citations96
US5261363ANov 16, 1993
Piston with separate head and skirt
MAHLE GMBH64 citations96
US6026777AFeb 22, 2000
Piston having a barrel of forged steel and a cooling channel
MAHLE GMBH81 citations95
US6957638B2Oct 25, 2005
Piston for an internal combustion engine
MAHLE GMBH22 citations93
US6938603B2Sep 6, 2005
Method for the production of a one-piece piston for an internal combustion engine
MAHLE GMBH21 citations93
US6772846B1Aug 10, 2004
Method for drilling shaker bores into the cooling channel of a single-part piston
MAHLE GMBH22 citations93
US6892689B2May 17, 2005
Cooling duct piston for a direct-injection diesel engine
MAHLE GMBH23 citations92
US6763758B2Jul 20, 2004
Multi-part cooled piston for an internal combustion engine
MAHLE GMBH25 citations92
US6729291B1May 4, 2004
Multipart cooled piston for an internal combustion engine
MAHLE GMBH48 citations92
US6698391B1Mar 2, 2004
Multipart cooled piston for a combustion engine
MAHLE GMBH40 citations92
US6659062B1Dec 9, 2003
Cooled piston for internal combustion engines
MAHLE GMBH41 citations92
US5257603ANov 2, 1993
Coated piston and process for applying coating
MAHLE GMBH45 citations92
US5081967AJan 21, 1992
Piston with separate head and skirt
MAHLE GMBH23 citations92
US6722263B2Apr 20, 2004
Bottom covering of a cooling chamber for pistons of internal combustion engines
MAHLE GMBH33 citations91
US5746169AMay 5, 1998
Light-metal piston for highly stressed internal combustion engines
MAHLE GMBH28 citations91
US6698392B1Mar 2, 2004
Single-part cooling channel piston for a combustion engine
MAHLE GMBH25 citations90
US6622613B1Sep 23, 2003
Multipiece piston
MAHLE GMBH18 citations90
US6202619B1Mar 20, 2001
Piston with a central cooling chamber
MAHLE GMBH22 citations89
US5052280AOct 1, 1991
Coolable trunk piston for internal combustion engines
MAHLE GMBH69 citations89
US4704950ANov 10, 1987
Plunger piston for internal combustion engines
MAHLE GMBH31 citations89
US7131418B2Nov 7, 2006
Cooled piston for an internal combustion engine
MAHLE GMBH30 citations88
US6453797B1Sep 24, 2002
Piston for an internal combustion engine
MAHLE GMBH41 citations88
US5782585AJul 21, 1998
Precision drill for drilling noncircular bores
MAHLE GMBH18 citations88
US5516425AMay 14, 1996
Oil filter for the cleaning of lubricating oil
MAHLE GMBH49 citations88
US4599935AJul 15, 1986
Plunger piston for internal combustion engines
MAHLE GMBH26 citations88
US4334507AJun 15, 1982
Piston for an internal combustion engine and method for producing same
MAHLE GMBH63 citations88
US6691666B1Feb 17, 2004
Multipart cooled piston for a combustion engine and method for manufacture thereof
MAHLE GMBH24 citations87
US5357920AOct 25, 1994
Cooled multi-component piston for internal combustion engines
MAHLE GMBH36 citations87
US6623240B2Sep 23, 2003
Guide blade-adjusting device for a turbocharger
MAHLE GMBH27 citations86
US6487773B2Dec 3, 2002
Method of making one-piece piston
MAHLE GMBH22 citations86
US5730090AMar 24, 1998
Reciprocating piston for internal combustion engines
MAHLE GMBH25 citations86
US5560283AOct 1, 1996
Piston-Cylinder assembly of an internal combustion engine
MAHLE GMBH50 citations86
US5086736AFeb 11, 1992
Piston head with bores
MAHLE GMBH25 citations85
US7584694B2Sep 8, 2009
Composite piston for an internal combustion engine
MAHLE GMBH12 citations84
US7415959B2Aug 26, 2008
Cooling channel cover for a piston of an internal combustion engine
MAHLE GMBH11 citations84
US7409903B2Aug 12, 2008
One-piece piston for an internal combustion engine
MAHLE GMBH10 citations84
US7308850B2Dec 18, 2007
Piston for combustion engine
MAHLE GMBH11 citations84
US6467397B1Oct 22, 2002
Constructed piston or piston consisting of components that are welded or soldered together
MAHLE GMBH26 citations84
US7380536B2Jun 3, 2008
Combustion bowl in the crown of a piston for a diesel engine
MAHLE GMBH15 citations83
US6938604B2Sep 6, 2005
Cooling channel cover for a one-piece piston of an internal combustion engine
MAHLE GMBH18 citations83
US6920860B2Jul 26, 2005
Cooling channel cover for a one-piece piston of an internal combustion engine
MAHLE GMBH12 citations83
US6877473B2Apr 12, 2005
Diesel engine piston
MAHLE GMBH18 citations83
US6820582B1Nov 23, 2004
Cooling channel cover for a one-piece piston of an internal combustion engine
MAHLE GMBH14 citations83
US5211101AMay 18, 1993
Piston with oval shaped lands
MAHLE GMBH24 citations83
US6223710B1May 1, 2001
Built-up piston
MAHLE GMBH15 citations82
US5653156AAug 5, 1997
Light metal piston for highly stresses internal combustion engines
MAHLE GMBH18 citations82
US5546896AAug 20, 1996
Articulated, oil-cooled piston for internal combustion engines
MAHLE GMBH36 citations81
US7647863B2Jan 19, 2010
Piston pin bearing for pistons of an internal combustion engine
MAHLE GMBH11 citations80
US6789460B2Sep 14, 2004
Multipart cooled piston for a combustion engine
MAHLE GMBH16 citations80
US5158008AOct 27, 1992
Light plunger piston for internal combustion engines
MAHLE GMBH21 citations80
Showing the top 50 of 143 patents by PatentIndex Score.