Assignee
NELSON IND INC
US·106 granted patents·7,767 citations·filing 1975–2002
Top patents by PatentIndex Score
106 records- 0199US4608160ASystem for separating liquidsNELSON IND INC·Filed 1984·Granted Aug 26, 1986·256 cites·5 claims
- 0298US6641637B2Additional flow filterNELSON IND INC·Filed 2002·Granted Nov 4, 2003·164 cites·7 claims
- 0398US6511599B2Multi-element cylindrical filter with equalized flowNELSON IND INC·Filed 2000·Granted Jan 28, 2003·250 cites·20 claims
- 0498US6416561B1Open flow filter with safety elementNELSON IND INC·Filed 2000·Granted Jul 9, 2002·269 cites·41 claims
- 0598US6398832B2High flow capacity filterNELSON IND INC·Filed 2001·Granted Jun 4, 2002·137 cites·34 claims
- 0698US6391076B1Full flow filterNELSON IND INC·Filed 2000·Granted May 21, 2002·197 cites·18 claims
- 0798US6261334B1High flow capacity filterNELSON IND INC·Filed 2000·Granted Jul 17, 2001·166 cites·17 claims
- 0898US6149700AIncreased flow capacity filterNELSON IND INC·Filed 1999·Granted Nov 21, 2000·278 cites·29 claims
- 0998US4677676AActive attenuation system with on-line modeling of speaker, error path and feedback packNELSON IND INC·Filed 1986·Granted Jun 30, 1987·199 cites·25 claims
- 1098US4209493ACombination catalytic converter and muffler for an exhaust systemNELSON IND INC·Filed 1979·Granted Jun 24, 1980·103 cites·10 claims
- 1197US6568540B1Low force closure filter with integral sealNELSON IND INC·Filed 2000·Granted May 27, 2003·136 cites·2 claims
- 1297US6482247B2Multi-panel fluid filter with equalized contaminant passagesNELSON IND INC·Filed 2000·Granted Nov 19, 2002·214 cites·12 claims
- 1397US6375700B1Direct flow filterNELSON IND INC·Filed 2000·Granted Apr 23, 2002·207 cites·25 claims
- 1497US6290738B1Inertial gas-liquid separator having an inertial collector spaced from a nozzle structureNELSON IND INC·Filed 1999·Granted Sep 18, 2001·179 cites·26 claims
- 1597US5968371ALubricant circulation diagnostic and modeling systemNELSON IND INC·Filed 1998·Granted Oct 19, 1999·134 cites·29 claims
- 1697US4665549AHybrid active silencerNELSON IND INC·Filed 1985·Granted May 12, 1987·139 cites·23 claims
- 1797US4253954ATwo-stage spin-on separating deviceNELSON IND INC·Filed 1979·Granted Mar 3, 1981·129 cites·2 claims
- 1896US6478019B2Flat low profile diesel engine crankcase ventilation filterNELSON IND INC·Filed 2001·Granted Nov 12, 2002·117 cites·52 claims
- 1996US6306193B1Increased flow capacity filterNELSON IND INC·Filed 2000·Granted Oct 23, 2001·95 cites·8 claims
- 2096US4677677AActive sound attenuation system with on-line adaptive feedback cancellationNELSON IND INC·Filed 1985·Granted Jun 30, 1987·136 cites·20 claims
- 2195US6709575B1Extended life combination filterNELSON IND INC·Filed 2000·Granted Mar 23, 2004·89 cites·8 claims
- 2295US6436162B1Twist and lock filter housing with anti-rotation stopNELSON IND INC·Filed 2000·Granted Aug 20, 2002·111 cites·12 claims
- 2395US6402798B1Twist and lock filter housing with nontorsional anti-rotation stopNELSON IND INC·Filed 2000·Granted Jun 11, 2002·235 cites·20 claims
- 2495US6383244B1Filter with retained safety elementNELSON IND INC·Filed 2000·Granted May 7, 2002·140 cites·11 claims
- 2595US5033082ACommunication system with active noise cancellationNELSON IND INC·Filed 1989·Granted Jul 16, 1991·122 cites·39 claims
- 2695US4147230ACombination spark arrestor and aspirating mufflerNELSON IND INC·Filed 1978·Granted Apr 3, 1979·151 cites·11 claims
- 2794US6238561B1Corrugated axial filter with simple fold pattern and method of making itNELSON IND INC·Filed 1999·Granted May 29, 2001·142 cites·10 claims
- 2894US4878929ALiquid-gas separatorNELSON IND INC·Filed 1989·Granted Nov 7, 1989·145 cites·12 claims
- 2993US5882367ARotatable sealed filter outletNELSON IND INC·Filed 1997·Granted Mar 16, 1999·105 cites·26 claims
- 3092US6478018B2Multi-peripheral perimeter sealed flat panel coalescing filter elementNELSON IND INC·Filed 2001·Granted Nov 12, 2002·88 cites·38 claims
- 3191US5858224AFilter with pressure sensor mounted in housing endNELSON IND INC·Filed 1997·Granted Jan 12, 1999·96 cites·17 claims
- 3291US5278913AActive acoustic attenuation system with power limitingNELSON IND INC·Filed 1992·Granted Jan 11, 1994·123 cites·29 claims
- 3391US4837834AActive acoustic attenuation system with differential filteringNELSON IND INC·Filed 1988·Granted Jun 6, 1989·82 cites·36 claims
- 3491US4487289AExhaust muffler with protective shieldNELSON IND INC·Filed 1982·Granted Dec 11, 1984·105 cites·11 claims
- 3591US4388091AAir cleaner having a dust dumping valveNELSON IND INC·Filed 1981·Granted Jun 14, 1983·75 cites·9 claims
- 3690US6569219B1Air filter with serviceable filter mediaNELSON IND INC·Filed 2001·Granted May 27, 2003·71 cites·36 claims
- 3790US4815139AActive acoustic attenuation system for higher order mode non-uniform sound field in a ductNELSON IND INC·Filed 1988·Granted Mar 21, 1989·82 cites·38 claims
- 3889US4482368AAir cleaning assembly including a fastening assembly having a novel wing nut constructionNELSON IND INC·Filed 1983·Granted Nov 13, 1984·80 cites·11 claims
- 3989US4011922AMuffler constructionNELSON IND INC·Filed 1975·Granted Mar 15, 1977·47 cites·11 claims
- 4088US6247463B1Diesel engine crankcase ventilation filterNELSON IND INC·Filed 1999·Granted Jun 19, 2001·101 cites·32 claims
- 4188US5930371ATunable acoustic systemNELSON IND INC·Filed 1997·Granted Jul 27, 1999·83 cites·29 claims
- 4287US4707166AAir dryer for air brake systemNELSON IND INC·Filed 1986·Granted Nov 17, 1987·31 cites·12 claims
- 4386US4736431AActive attenuation system with increased dynamic rangeNELSON IND INC·Filed 1986·Granted Apr 5, 1988·85 cites·21 claims
- 4485US6457553B1Low cost mufflerNELSON IND INC·Filed 2000·Granted Oct 1, 2002·38 cites·22 claims
- 4585US5462679AApparatus and method for in situ cleaning of oil filterNELSON IND INC·Filed 1993·Granted Oct 31, 1995·61 cites·10 claims
- 4684US6540046B1Compact economical spark arrestor and mufflerNELSON IND INC·Filed 2001·Granted Apr 1, 2003·48 cites·6 claims
- 4784US6422395B1Filter with preferential fluid affinityNELSON IND INC·Filed 2000·Granted Jul 23, 2002·43 cites·7 claims
- 4884US4735720APleated filter element having improved side seam sealNELSON IND INC·Filed 1986·Granted Apr 5, 1988·66 cites·4 claims
- 4982US5859393AReduced cost vent silencerNELSON IND INC·Filed 1997·Granted Jan 12, 1999·83 cites·11 claims
- 5082US5779900AIn-situ cleanable filter with filtered cleanserNELSON IND INC·Filed 1996·Granted Jul 14, 1998·58 cites·56 claims
Showing the top 50 of 106 patent records by PatentIndex Score.
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