MAHLE ENGINE COMPONENTS USA, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16J PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS1436
 
  
 
F02F CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES 827
 
  
 
C22C ALLOYS 369
 
  
 
F02B INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 369
 
  
 
B60T VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL 271
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 243
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 299
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
F01L CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES 154

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8403334 Multi-rail piston ringJan 07, 09Mar 26, 13[F02F, F16J]
8047123 Cooling gallery insert for a pistonDec 07, 07Nov 01, 11[F16J]
7997185 Piston ringMar 24, 08Aug 16, 11[F16J]
7461583 Variable tension ring mechanismJul 21, 06Dec 09, 08[F16J]
7429047 Piston ring assemblyNov 12, 03Sep 30, 08[B60T]
7429048 Piston ring with projectionNov 20, 03Sep 30, 08[F16J]
7188841 Secondary piston sealJan 14, 05Mar 13, 07[F16J]
RE39070 Wear resistant coating for piston ringsDec 31, 03Apr 18, 06[C22C]
6833165 Thermally sprayed coatingsSep 26, 02Dec 21, 04[C23C]
6780474 Thermally sprayed chromium nitride coatingAug 26, 02Aug 24, 04[C23C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0261,265 LOW FRICTION CAMSHAFT WITH ELECTRIC PHASERAbandonedMar 14, 13Sep 18, 14[F01L]
2009/0174,150 LATERAL SIDE PROTECTION OF A PISTON RING WITH A THERMALLY SPRAYED COATINGAbandonedDec 15, 08Jul 09, 09[B05D, F16J]
7121192 Piston ring coatingExpiredMar 19, 04Oct 17, 06[F16J]
7017914 Piston assembly and method of manufactureExpiredOct 15, 02Mar 28, 06[F16J]
2005/0260,436 Wear resistant coating for piston ringsAbandonedJan 03, 05Nov 24, 05[B32B]
5901963 Gas nitrided taper faced keystone piston ring incorporating a sealing land and orientation grooveExpiredOct 30, 96May 11, 99[9./2, F16J]
5701861 Cylinder with hybrid bore surfaceExpiredJul 22, 94Dec 30, 97[C23F]
5024203 PCV oil separator systemExpiredAug 22, 90Jun 18, 91[F02M]

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