Assignee
KNECHT FILTERWERKE GMBH
DE·13 granted patents·477 citations·filing 1979–1998
Top patents by PatentIndex Score
13 records- 0188US5814215AOil filter including an integral filter support and housing drain valve assemblyKNECHT FILTERWERKE GMBH·Filed 1996·Granted Sep 29, 1998·106 cites·10 claims
- 0288US5589060AFilter for liquids, in particular internal-combustion engine lubricant oilsKNECHT FILTERWERKE GMBH·Filed 1992·Granted Dec 31, 1996·62 cites·21 claims
- 0386US5460147ACyclone separator for an internal combustion engineKNECHT FILTERWERKE GMBH·Filed 1994·Granted Oct 24, 1995·75 cites·5 claims
- 0478US6161615APlate-type heat exchanger, especially oil/coolant cooler in vehiclesKNECHT FILTERWERKE GMBH·Filed 1998·Granted Dec 19, 2000·51 cites·6 claims
- 0569US4287917ADiaphragm device for damping vibrations in flowing liquidsKNECHT FILTERWERKE GMBH·Filed 1979·Granted Sep 8, 1981·23 cites·3 claims
- 0668US6368506B1Ring encasement with clamps for zigzag fold paperKNECHT FILTERWERKE GMBH·Filed 1998·Granted Apr 9, 2002·40 cites·13 claims
- 0762US5698097AOil filter including replaceable primary and secondary flow filter elementsKNECHT FILTERWERKE GMBH·Filed 1995·Granted Dec 16, 1997·29 cites·13 claims
- 0861US4422790AConnecting means for filter cartridgesKNECHT FILTERWERKE GMBH·Filed 1982·Granted Dec 27, 1983·25 cites·3 claims
- 0956US5956822ASnap-lock connection for two parts which can rotate in relation to each otherKNECHT FILTERWERKE GMBH·Filed 1997·Granted Sep 28, 1999·21 cites·2 claims
- 1050US5080790AStrip-shaped filter material with crimps molded in and filter elements made of this materialKNECHT FILTERWERKE GMBH·Filed 1989·Granted Jan 14, 1992·22 cites·14 claims
- 1139US6089213ALubricating oil fill line for an internal combustion engine, involving a oil mist sediment tankKNECHT FILTERWERKE GMBH·Filed 1998·Granted Jul 18, 2000·13 cites·6 claims
- 1233US4466817AExhaust gas separatorKNECHT FILTERWERKE GMBH·Filed 1982·Granted Aug 21, 1984·8 cites·6 claims
- 1321US5983870AAdsorption filter for the fuel tank venting system of an internal combustion engine and process for operating said systemKNECHT FILTERWERKE GMBH·Filed 1997·Granted Nov 16, 1999·2 cites·6 claims
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