MAHLE VENTILTRIEB GMBH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F01L CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES 847
 
  
 
B21K MAKING FORGED OR PRESSED PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS, WHEELS 122
 
  
 
B22C FOUNDRY MOULDING 127
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 148
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
F01P COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES 139
 
  
 
F02N STARTING OF COMBUSTION ENGINES 132

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7845075 Method for manufacturing a camshaftJul 15, 05Dec 07, 10[B23P, B21K, F01L]
7588006 Bearing between two coaxial camshafts for automotive engines in particularOct 21, 05Sep 15, 09[F01L]
7311072 Control unit for a valve, especially a gas exchange valve of an internal combustion engineJul 12, 05Dec 25, 07[F01L]
7299774 Valve controlJan 21, 04Nov 27, 07[F01L]
7240895 Gas exchange valve for an internal combustion engineFeb 04, 05Jul 10, 07[F01L]
7124721 Control device for a gas exchange valve in an internal combustion engineFeb 13, 03Oct 24, 06[F01L]
7069892 Camshaft for automotive engines in particularNov 21, 05Jul 04, 06[F01L]
7063051 Liquid-cooled valve seat ringMay 07, 02Jun 20, 06[F01P]
6935296 Method of producing a gas shuttle valve of an internal combustion engineDec 19, 02Aug 30, 05[F02N]
6478074 Method for the production of a steel camshaft and camshaft produced according to said methodMar 16, 01Nov 12, 02[B22D, B22C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0112,815 Blade Mounting Ring For A Turbocharger On An Internal Combustion EngineAbandonedAug 17, 05May 15, 08[F04D]
7069889 Camshaft, especially for an internal combustion engine of a motor vehicle, comprising shiftable camsExpiredMay 26, 04Jul 04, 06[F01L]
2005/0139,192 Piston engine, especially reciprocating internal combustion engine with additional charge control mechanismAbandonedOct 13, 04Jun 30, 05[F02D]
6886509 Hydraulic actuator for actuating a gas exchange valve of an internal combustion engineExpiredMar 16, 02May 03, 05[F01L]
6732632 Lost mould for producing a cylindrical bushing sleeveExpiredMay 31, 02May 11, 04[B22C]
6718923 Hydraulic play compensation element for a valve gear of an internal combustion engineExpiredJan 31, 03Apr 13, 04[F01L]
6688269 Roller tappetExpiredMay 31, 02Feb 10, 04[F01L]
6640761 Control device for an intake valve or exhaust valve of an internal combustion engineExpiredOct 28, 02Nov 04, 03[F01L]
6581555 Method and device for opening and closing a valve of an internal combustion engineExpiredOct 29, 01Jun 24, 03[F01L]
2003/0107,182 Seal of a pressure chamberAbandonedNov 12, 02Jun 12, 03[F02F]
6354258 Lightweight valveExpiredAug 01, 00Mar 12, 02[F02N]
6308675 Gas exchange valve with a hollow spaceExpiredJul 24, 00Oct 30, 01[F02N]

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