Filterwerk Mann & Hummel GmbH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 5381
 
  
 
F02M SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF 2162
 
  
 
B04B CENTRIFUGES 1215
 
  
 
F01M LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING 1023
 
  
 
F02B INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 765
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING568
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 3122
 
  
 
F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 370
 
  
 
F02D CONTROLLING COMBUSTION ENGINES 370
 
  
 
B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE 255

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7192518 Liquid circuitDec 26, 02Mar 20, 07[B01D]
7137510 Filter elementNov 20, 98Nov 21, 06[B01D]
6994768 Cylindrical filter elementMay 21, 02Feb 07, 06[B32B]
RE38855 Centrifugal separator with one or more internal contaminant barriersFeb 11, 98Oct 25, 05[B04B]
6884273 Multicell cyclone and method for producing itAug 28, 02Apr 26, 05[B01D]
6860249 Intake manifold with mounting flange and insert for reinforcing the flangeAug 30, 02Mar 01, 05[F02M]
6852217 Filter with an annularly constructed filter mediumJun 15, 01Feb 08, 05[B01D]
6811694 Liquid filterFeb 10, 03Nov 02, 04[B01D]
6805089 Intake deviceDec 20, 02Oct 19, 04[F02M]
6792925 Filter deviceJul 16, 03Sep 21, 04[F02M]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7311846 Apparatus and method for separating ferrous and non-ferrous metal particles suspended in a liquidExpiredNov 01, 02Dec 25, 07[B01D]
2007/0175,807 Liquid circuitAbandonedMar 16, 07Aug 02, 07[B01D]
RE39704 Centrifugal separator with weight thrust bearingExpiredDec 05, 96Jun 26, 07[B04B]
7152745 Filter bypass monitoring systemExpiredSep 17, 01Dec 26, 06[B01D]
7025029 Air intake tube for an internal combustion engineExpiredOct 10, 01Apr 11, 06[F02M]
6973925 Ventilation device for crankcaseExpiredAug 22, 01Dec 13, 05[F01M]
6966981 Replaceable filter cartridge with support element and liquid filter with such a filter cartridgeExpiredMay 16, 03Nov 22, 05[B01D]
6942709 Switchable cyclone for separating particles or droplets from a fluid streamExpiredFeb 13, 03Sep 13, 05[B01D]
6911142 Overhead return piping systemExpiredMar 28, 03Jun 28, 05[F01M, B01D]
6893561 Liquid filter with a cast metal housing and method of producing the sameExpiredNov 12, 02May 17, 05[B01D]
6893571 Method and apparatus for storing water separated from fuelExpiredDec 06, 02May 17, 05[C02F]
6886517 Intake device for an internal combustion engine having impulse chargingExpiredDec 03, 02May 03, 05[F02M]
6837261 Control valve assembly of valve assembly-injection-molded control valves or modulesExpiredJun 26, 03Jan 04, 05[F02D]
6823838 Switching assembly for closing intake lines of an air intake device and intake device incorporating sameExpiredApr 19, 02Nov 30, 04[F02D]
6817173 Method and device for simultaneous regulation of an intake air flow for an internal combustion engine and a secondary air flow in the exhaust system of the same internal combustion engineExpiredNov 22, 02Nov 16, 04[F01N]
6752113 Mounting arrangement for an intake manifold and a method of making sameExpiredJul 19, 02Jun 22, 04[F02M]
6752115 Air intake device for an internal combustion engineExpiredApr 19, 02Jun 22, 04[F02M]
6742489 Intake manifold for internal combustion engine with integrated fuel railExpiredSep 17, 02Jun 01, 04[F02M]
6740026 Centrifugal separator with an arrangement for hindering inadvertent cover removalExpiredDec 21, 01May 25, 04[B04B]
6732695 Intake manifold for an internal combustion engineExpiredFeb 04, 02May 11, 04[F02B]

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