Assignee
WALBRO CORP
US·271 granted patents·10,084 citations·filing 1974–2002
Top patents by PatentIndex Score
271 records- 0199US4926829APressure-responsive fuel delivery systemWALBRO CORP·Filed 1989·Granted May 22, 1990·128 cites·9 claims
- 0298US5195494AFuel delivery system with outlet pressure regulationWALBRO CORP·Filed 1992·Granted Mar 23, 1993·131 cites·8 claims
- 0398US5148792APressure-responsive fuel delivery systemWALBRO CORP·Filed 1992·Granted Sep 22, 1992·112 cites·4 claims
- 0498US5044344APressure-responsive fuel delivery systemWALBRO CORP·Filed 1989·Granted Sep 3, 1991·153 cites·20 claims
- 0598US4649884AFuel rail for internal combustion enginesWALBRO CORP·Filed 1986·Granted Mar 17, 1987·115 cites·6 claims
- 0698US4569637AIn-tank fuel pump assemblyWALBRO CORP·Filed 1984·Granted Feb 11, 1986·83 cites·1 claims
- 0797US6302144B1Vehicle fuel systemWALBRO CORP·Filed 2000·Granted Oct 16, 2001·106 cites·23 claims
- 0897US6231318B1In-take fuel pump reservoirWALBRO CORP·Filed 2000·Granted May 15, 2001·94 cites·60 claims
- 0997US5727529APressure control valve for a fuel systemWALBRO CORP·Filed 1995·Granted Mar 17, 1998·103 cites·27 claims
- 1097US5398655AManifold referenced returnless fuel systemWALBRO CORP·Filed 1994·Granted Mar 21, 1995·107 cites·6 claims
- 1196US5579740AFuel handling systemWALBRO CORP·Filed 1995·Granted Dec 3, 1996·102 cites·30 claims
- 1296US5038741AIn-tank fuel moduleWALBRO CORP·Filed 1990·Granted Aug 13, 1991·96 cites·12 claims
- 1396US4747388AIn-tank fuel reservoir and filter diaphragmWALBRO CORP·Filed 1986·Granted May 31, 1988·92 cites·17 claims
- 1495US6585235B2Fuel regulating mechanism and method for a rotary throttle valve type carburetorWALBRO CORP·Filed 2001·Granted Jul 1, 2003·54 cites·43 claims
- 1595US5960775AFiltered fuel pump moduleWALBRO CORP·Filed 1997·Granted Oct 5, 1999·70 cites·12 claims
- 1695US5623907ALiquid propane fuel delivery systemWALBRO CORP·Filed 1995·Granted Apr 29, 1997·124 cites·51 claims
- 1795US5611312ACarburetor and method and apparatus for controlling air/fuel ratio of sameWALBRO CORP·Filed 1995·Granted Mar 18, 1997·97 cites·45 claims
- 1895US5579739AReturnless fuel system with demand fuel pressure regulatorWALBRO CORP·Filed 1995·Granted Dec 3, 1996·80 cites·75 claims
- 1995US5361742AFuel pump manifoldWALBRO CORP·Filed 1993·Granted Nov 8, 1994·89 cites·15 claims
- 2095US5265644AFuel pressure regulatorWALBRO CORP·Filed 1993·Granted Nov 30, 1993·83 cites·24 claims
- 2195US5120201ABrushless DC fuel pump responsive to pressure sensorWALBRO CORP·Filed 1990·Granted Jun 9, 1992·78 cites·3 claims
- 2295US4780063AVehicle fuel pump having a noise-reduction jacketWALBRO CORP·Filed 1987·Granted Oct 25, 1988·62 cites·3 claims
- 2394US5984281ACarburetor needle valve and limiter cap installation and adjustment apparatusWALBRO CORP·Filed 1997·Granted Nov 16, 1999·82 cites·45 claims
- 2494US5702229ARegenerative fuel pumpWALBRO CORP·Filed 1996·Granted Dec 30, 1997·82 cites·23 claims
- 2594US5647329AIn-tank fuel pump and reservoirWALBRO CORP·Filed 1996·Granted Jul 15, 1997·102 cites·120 claims
- 2693US6439547B1Carburetor throttle and choke control mechanismWALBRO CORP·Filed 2001·Granted Aug 27, 2002·45 cites·21 claims
- 2793US6314947B1Fuel delivery systemWALBRO CORP·Filed 1999·Granted Nov 13, 2001·68 cites·14 claims
- 2893US6202989B1Carburetor throttle and choke control mechanismWALBRO CORP·Filed 1999·Granted Mar 20, 2001·70 cites·15 claims
- 2993US5682845AFuel delivery system for hand-held two-stroke cycle enginesWALBRO CORP·Filed 1996·Granted Nov 4, 1997·70 cites·15 claims
- 3093US5647331ALiquid cooled fuel pump and vapor separatorWALBRO CORP·Filed 1996·Granted Jul 15, 1997·73 cites·13 claims
- 3193US5507318AUmbrella check valvesWALBRO CORP·Filed 1994·Granted Apr 16, 1996·82 cites·6 claims
- 3293US5368001AFuel handling systemWALBRO CORP·Filed 1994·Granted Nov 29, 1994·68 cites·19 claims
- 3392US6311675B2Vent valve and fuel pump moduleWALBRO CORP·Filed 2001·Granted Nov 6, 2001·57 cites·30 claims
- 3492US6155793ARecessed fuel pump moduleWALBRO CORP·Filed 1999·Granted Dec 5, 2000·66 cites·24 claims
- 3592US6068672AFuel additive delivery systemWALBRO CORP·Filed 1998·Granted May 30, 2000·75 cites·19 claims
- 3692US5979485AFuel tank level equalizer systemWALBRO CORP·Filed 1996·Granted Nov 9, 1999·66 cites·32 claims
- 3792US5406922ASelf-contained electric-motor fuel pump with outlet pressure regulationWALBRO CORP·Filed 1993·Granted Apr 18, 1995·57 cites·11 claims
- 3891US6634341B2Vent and rollover valve and fuel pump moduleWALBRO CORP·Filed 2001·Granted Oct 21, 2003·41 cites·32 claims
- 3991US6533288B1Flange seal assemblyWALBRO CORP·Filed 2000·Granted Mar 18, 2003·81 cites·22 claims
- 4091US6447270B1Brushless coolant pump and cooling systemWALBRO CORP·Filed 1999·Granted Sep 10, 2002·106 cites·26 claims
- 4191US5257916ARegenerative fuel pumpWALBRO CORP·Filed 1992·Granted Nov 2, 1993·70 cites·26 claims
- 4291US4697995ARotary positive displacement fuel pump with purge portWALBRO CORP·Filed 1986·Granted Oct 6, 1987·44 cites·3 claims
- 4391US4676101ACapacitance-type material level indicatorWALBRO CORP·Filed 1986·Granted Jun 30, 1987·73 cites·16 claims
- 4490US5623910ACheck and vent valve assemblyWALBRO CORP·Filed 1994·Granted Apr 29, 1997·75 cites·20 claims
- 4590US5421306ACheck valve for engine fuel delivery systemsWALBRO CORP·Filed 1994·Granted Jun 6, 1995·61 cites·16 claims
- 4690US5415146ASupplemental in-tank filterWALBRO CORP·Filed 1993·Granted May 16, 1995·80 cites·8 claims
- 4790US4928657AIn-tank fuel reservoir with fuel level sensorWALBRO CORP·Filed 1989·Granted May 29, 1990·52 cites·13 claims
- 4890US4543935APressure regulator with variable responseWALBRO CORP·Filed 1984·Granted Oct 1, 1985·31 cites·5 claims
- 4989US6457460B1Fuel delivery system with recirculation coolerWALBRO CORP·Filed 2000·Granted Oct 1, 2002·37 cites·38 claims
- 5089US6000683ACarburetor throttle and choke control mechanismWALBRO CORP·Filed 1997·Granted Dec 14, 1999·63 cites·11 claims
Showing the top 50 of 271 patent records by PatentIndex Score.
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