Inventor · disambiguated record
Leon P. Janik
Also filed as: JANIK JR LEON P · JANIK LEON P · JANIK LEON P JR
54 granted patents·4 pending applications·2,663 citations·filing 1977–2006
99Inventor score
Top patents by PatentIndex Score
58 records- 0198US5035797AKey system for filter assemblySTANADYNE AUTOMOTIVE CORP·Filed 1990·Granted Jul 30, 1991·228 cites·21 claims
- 0297US6506302B2Key system for ecological filter cartridge and elementSTANADYNE CORP·Filed 2001·Granted Jan 14, 2003·70 cites·4 claims
- 0397US5186829AFuel filter key systemSTANADYNE AUTOMOTIVE CORP·Filed 1991·Granted Feb 16, 1993·136 cites·23 claims
- 0497US5084170AFuel filterSTANADYNE AUTOMOTIVE CORP·Filed 1990·Granted Jan 28, 1992·120 cites·21 claims
- 0596US5017285AFuel filter and cartridge assemblySTANADYNE AUTOMOTIVE CORP·Filed 1989·Granted May 21, 1991·106 cites·25 claims
- 0695US6048455AFilter assembly with conformal cartridge support structureSTANADYNE AUTOMOTIVE CORP·Filed 1997·Granted Apr 11, 2000·127 cites·17 claims
- 0795US4938193AFuel injection nozzleSTANADYNE AUTOMOTIVE CORP·Filed 1988·Granted Jul 3, 1990·88 cites·18 claims
- 0894US6187188B1Filter cartridge retention systemSTANADYNE AUTOMOTIVE CORP·Filed 1999·Granted Feb 13, 2001·111 cites·20 claims
- 0994US5837137ABase/cartridge location and key system for fuel filter assemblySTANADYNE AUTOMOTIVE CORP·Filed 1996·Granted Nov 17, 1998·116 cites·19 claims
- 1094US5766463AFuel filter cartridgeSTANADYNE AUTOMOTIVE CORP·Filed 1996·Granted Jun 16, 1998·119 cites·22 claims
- 1193USD484568SFilter cartridgeSTANADYNE CORP·Filed 2003·Granted Dec 30, 2003·44 cites·1 claims
- 1293US6500335B2Filter system base module with self-locking cartridge retainerSTANADYNE CORP·Filed 2001·Granted Dec 31, 2002·73 cites·17 claims
- 1392US6125822ATwo stage pressure relief valveSTANADYNE AUTOMOTIVE CORP·Filed 2000·Granted Oct 3, 2000·37 cites·30 claims
- 1492US5525225AFuel filter with internal ventSTANADYNE AUTOMOTIVE CORP·Filed 1994·Granted Jun 11, 1996·66 cites·11 claims
- 1591US5203994AFuel filter retention systemSTANADYNE AUTOMOTIVE CORP·Filed 1991·Granted Apr 20, 1993·80 cites·22 claims
- 1690US4976852AFuel filterSTANADYNE AUTOMOTIVE CORP·Filed 1989·Granted Dec 11, 1990·72 cites·20 claims
- 1789US6740234B1Key track systemSTANADYNE CORP·Filed 2002·Granted May 25, 2004·66 cites·13 claims
- 1889USD435631SFilter cartridgeSTANADYNE AUTOMOTIVE CORP·Filed 2000·Granted Dec 26, 2000·40 cites·1 claims
- 1989US5489384ASingle stage fuel filter with seal control air purgeSTANADYNE AUTOMOTIVE CORP·Filed 1994·Granted Feb 6, 1996·55 cites·18 claims
- 2088US5413711AFuel filter with internal ventSTANADYNE AUTOMOTIVE CORP·Filed 1993·Granted May 9, 1995·69 cites·9 claims
- 2188US5236579AFuel filter assembly with modular drain bowlSTANADYNE AUTOMOTIVE CORP·Filed 1991·Granted Aug 17, 1993·78 cites·19 claims
- 2286US6471070B2Ecological fuel filter cartridge and elementSTANADYNE CORP·Filed 2001·Granted Oct 29, 2002·41 cites·12 claims
- 2384US6881334B2Eccentric interference retention system for a filter cartridgeSTANADYNE CORP·Filed 2002·Granted Apr 19, 2005·36 cites·9 claims
- 2484US5484527AModule for filter assembly baseSTANADYNE AUTOMOTIVE CORP·Filed 1993·Granted Jan 16, 1996·41 cites·11 claims
- 2582US7412896B2Filter change indicatorSTANADYNE CORP·Filed 2006·Granted Aug 19, 2008·11 cites·20 claims
- 2681US5312546ADry change fuel filter systemSTANADYNE AUTOMOTIVE CORP·Filed 1993·Granted May 17, 1994·50 cites·17 claims
- 2778US6863811B2Filter cartridge incorporating a peripheral compatibility matrixSTANADYNE CORP·Filed 2002·Granted Mar 8, 2005·36 cites·27 claims
- 2878US5578221AFuel filter with improved hand primerSTANADYNE AUTOMOTIVE CORP·Filed 1994·Granted Nov 26, 1996·41 cites·24 claims
- 2977US4971528ALube oil pump with relief valveSTANADYNE AUTOMOTIVE CORP·Filed 1989·Granted Nov 20, 1990·25 cites·6 claims
- 3077US4790055AMethod of assembling a fuel nozzle assemblySTANADYNE INC·Filed 1987·Granted Dec 13, 1988·34 cites·11 claims
- 3176US7360433B2Filter change indicatorSTANADYNE CORP·Filed 2006·Granted Apr 22, 2008·6 cites·20 claims
- 3276USD479300SFilter cartridgeSTANADYNE CORP·Filed 2002·Granted Sep 2, 2003·17 cites·1 claims
- 3374USD356852SFuel filter cartridgeSTANADYNE AUTOMOTIVE CORP·Filed 1992·Granted Mar 28, 1995·16 cites·1 claims
- 3472US5938921AWater baffle for filter cartridgeSTANADYNE AUTOMOTIVE CORP·Filed 1997·Granted Aug 17, 1999·40 cites·17 claims
- 3571US6911143B2Base receptacle for filter cartridge incorporating a peripheral compatibility matrixSTANADYNE CORP·Filed 2002·Granted Jun 28, 2005·16 cites·16 claims
- 3671US5868931APrimer system for filter assemblySTANADYNE AUTOMOTIVE CORP·Filed 1997·Granted Feb 9, 1999·27 cites·14 claims
- 3770US5985144AReverse flow cartridgeSTANADYNE AUTOMOTIVE CORP·Filed 1997·Granted Nov 16, 1999·28 cites·10 claims
- 3868US7137303B2Filter change indicatorSTANADYNE CORP·Filed 2004·Granted Nov 21, 2006·12 cites·20 claims
- 3968US5794598AFuel circuit and circulation method for fuel injection systemSTANADYNE AUTOMOTIVE CORP·Filed 1997·Granted Aug 18, 1998·38 cites·18 claims
- 4068US5614091AFuel filter master module with optional diverter capabilitySTANADYNE AUTOMOTIVE CORP·Filed 1994·Granted Mar 25, 1997·22 cites·8 claims
- 4168US5474676AFilter base assemblySTANADYNE AUTOMOTIVE CORP·Filed 1993·Granted Dec 12, 1995·31 cites·11 claims
- 4265US6755308B2Filter cartridge with grommet springSTANADYNE CORP·Filed 2002·Granted Jun 29, 2004·9 cites·15 claims
- 4365US6019890AFuel filter with hand primerSTANADYNE AUTOMOTIVE CORP·Filed 1997·Granted Feb 1, 2000·33 cites·11 claims
- 4464US4894900ATool for removing a fuel injection nozzleSTANADYNE AUTOMOTIVE CORP·Filed 1988·Granted Jan 23, 1990·23 cites·4 claims
- 4563US5887573AFuel filter with cold start circuitSTANADYNE AUTOMOTIVE CORP·Filed 1997·Granted Mar 30, 1999·23 cites·15 claims
- 4662US4862838ACrankcase oil spray nozzle for piston coolingSTANADYNE AUTOMOTIVE CORP·Filed 1988·Granted Sep 5, 1989·18 cites·20 claims
- 4761US4170210AAir starterSTANADYNE INC·Filed 1977·Granted Oct 9, 1979·15 cites·5 claims
- 4860US6843911B2Base receptacle with fixed retainer for filter cartridge incorporating a peripheral compatibility matrixSTANADYNE CORP·Filed 2002·Granted Jan 18, 2005·8 cites·21 claims
- 4958US7442292B2Liquid visual displaySTANADYNE CORP·Filed 2006·Granted Oct 28, 2008·1 cites·10 claims
- 5057US6364121B1Filter cartridge with grommet springSTANADYNE CORP·Filed 1999·Granted Apr 2, 2002·18 cites·15 claims
Showing the top 50 of 58 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →