HENGST SE & CO. KG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 14120
 
  
 
F02M SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF 479
 
  
 
B04B CENTRIFUGES 225
 
  
 
F01M LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING 231
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0296,951 DEVICE FOR CLEANING LIQUIDS OR GASEOUS MEDIA AND PRECIPITATING ELEMENT FOR SAID DEVICEAug 26, 15Oct 19, 17[F02M, F01M, B01D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9821322 Centrifugal separator having a particle guide troughJul 20, 11Nov 21, 17[B04B]
9731232 Liquid filter having a drainage valveJun 14, 12Aug 15, 17[B01D]
9700819 Liquid filter with a central discharge channel and filter unit for a liquid filterJun 21, 13Jul 11, 17[F01M, B01D]
9644508 Liquid filter with a filter bypass valve and with a central discharge duct, and filter insert for a liquid filterJun 21, 13May 09, 17[F02M, F01M, B01D]
9555350 Bypass valve, device comprising bypass valve, and filter insert of the deviceFeb 10, 12Jan 31, 17[F16K, B01D]
9403107 Liquid filter having a filter bypass valve and filter insert thereforDec 22, 11Aug 02, 16[B01D]
9393506 Fluid filter with replaceable filter insertOct 31, 11Jul 19, 16[B01D]
9254456 Liquid filter with an eccentric liquid discharge channelJun 11, 12Feb 09, 16[B01D]
9074558 Centrifugal precipitator for precipitating oil mist from the crankcase ventilation gas from an internal combustion engineMay 14, 12Jul 07, 15[B04B, F02M, F01M, B01D]
9044698 Filter with a replaceable filter insertOct 31, 11Jun 02, 15[B01D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0097,354 INTERNAL COMBUSTION ENGINE HAVING A CRANKCASE VENTILATION DEVICE, AND METHOD FOR MONITORING A CRANKCASE VENTILATION DEVICEAbandonedOct 02, 15Apr 07, 16[F02M]

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