Obrist Engineering GmbH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F01B MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES 225
 
  
 
F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS 245
 
  
 
F02B INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 171
 
  
 
F03C POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS 123
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 167

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9512840 vehicle air conditioning system having a scroll-type compressorMay 20, 14Dec 06, 16[F04C]
9291165 Scroll-type compressor and CO2 vehicle air conditioning system having a scroll-type compressorMay 20, 14Mar 22, 16[F04C, F03C]
7287399 Collector for the liquid phase of the working medium of an air-conditioning systemFeb 08, 05Oct 30, 07[F25B]
7273004 Reciprocating machineDec 03, 04Sep 25, 07[F01B]
7267041 Reciprocating piston compressorJun 14, 05Sep 11, 07[F01B]
7144227 Reciprocating-piston machine with a driverNov 14, 03Dec 05, 06[F04B]
6164252 Reciprocating piston engine with a swivel disk gearMay 18, 99Dec 26, 00[F02B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0274,575 COMPRESSOR, IN PARTICULAR A RADIAL PISTON COMPRESSOR FOR CARBON DIOXIDE AS A REFRIGERANTAbandonedJan 22, 10Nov 10, 11[F01C]
7201566 Reciprocating-piston machine with a joint arrangementExpiredNov 14, 03Apr 10, 07[F04B]
7179063 Reciprocating-piston machine with a sliding sleeveExpiredNov 14, 03Feb 20, 07[F04B]
2007/0023,172 Heat exchanger for a motor vehicle air conditioning systemAbandonedSep 15, 06Feb 01, 07[F28F]
2006/0218,956 Motor vehicle comprising an air conditioning systemAbandonedApr 08, 04Oct 05, 06[B60H, F25D]
6991212 Needle valveExpiredDec 20, 02Jan 31, 06[F16K]
6792773 Collector for the liquid phase of a working medium of an air conditioning systemExpiredDec 23, 03Sep 21, 04[F25B]
6789569 Pressure relief valve with a spring-loaded membrane closing bodyExpiredJul 18, 02Sep 14, 04[F16K]

Top Inventors for This Owner

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