Assignee
BALDWIN FILTERS INC
US·77 granted patents·33 pending applications·4,772 citations·filing 1988–2025
Top patents by PatentIndex Score
110 records- 0198US6447567B1Air filter element with integral radial seal gasketBALDWIN FILTERS INC·Filed 2001·Granted Sep 10, 2002·221 cites·27 claims
- 0298US5685985AEnvironmentally friendly filter cartridgeBALDWIN FILTERS INC·Filed 1995·Granted Nov 11, 1997·399 cites·32 claims
- 0397US7753982B2Filter with drained jacket, seal indicator/lock means, and seal baffleBALDWIN FILTERS INC·Filed 2006·Granted Jul 13, 2010·57 cites·28 claims
- 0497US7318851B2Filter elementBALDWIN FILTERS INC·Filed 2004·Granted Jan 15, 2008·140 cites·46 claims
- 0597US5738785AOil filter housingBALDWIN FILTERS INC·Filed 1995·Granted Apr 14, 1998·203 cites·17 claims
- 0696US7182864B2Housing for environmentally friendly filter cartridgeBALDWIN FILTERS INC·Filed 2003·Granted Feb 27, 2007·91 cites·14 claims
- 0796US6984319B2Environmentally friendly acid neutralizing full flow cartridgeBALDWIN FILTERS INC·Filed 2003·Granted Jan 10, 2006·93 cites·46 claims
- 0896US6919023B2Acid neutralizing filter canisterBALDWIN FILTERS INC·Filed 2003·Granted Jul 19, 2005·102 cites·24 claims
- 0996US6517475B1Centrifugal filter for removing soot from engine oilBALDWIN FILTERS INC·Filed 2000·Granted Feb 11, 2003·94 cites·17 claims
- 1096US5948248ACoolant filter having a delayed release supplemental coolant additive cartridgeBALDWIN FILTERS INC·Filed 1998·Granted Sep 7, 1999·118 cites·11 claims
- 1196US5702602AFilter system with environmentally friendly filter cartridgeBALDWIN FILTERS INC·Filed 1995·Granted Dec 30, 1997·159 cites·21 claims
- 1296US5490930AFilterBALDWIN FILTERS INC·Filed 1994·Granted Feb 13, 1996·153 cites·15 claims
- 1396US5484466AAir filter element with radial seal sealing gasketBALDWIN FILTERS INC·Filed 1994·Granted Jan 16, 1996·409 cites·11 claims
- 1495US7931725B2Fluted filter apparatusBALDWIN FILTERS INC·Filed 2009·Granted Apr 26, 2011·54 cites·22 claims
- 1595US7628837B2Air filter with composite end capBALDWIN FILTERS INC·Filed 2005·Granted Dec 8, 2009·30 cites·20 claims
- 1695US6537453B2Acid-neutralizing filterBALDWIN FILTERS INC·Filed 2001·Granted Mar 25, 2003·111 cites·30 claims
- 1795US5803024ACoolant filter having a delayed release supplemental coolant additive cartridgeBALDWIN FILTERS INC·Filed 1997·Granted Sep 8, 1998·105 cites·9 claims
- 1894US8048187B2Filter frame attachment and fluted filter having sameBALDWIN FILTERS INC·Filed 2008·Granted Nov 1, 2011·41 cites·16 claims
- 1994US7959703B2Fluted filter with integrated frameBALDWIN FILTERS INC·Filed 2008·Granted Jun 14, 2011·41 cites·23 claims
- 2094US7815705B2Air filter with composite end capBALDWIN FILTERS INC·Filed 2005·Granted Oct 19, 2010·32 cites·21 claims
- 2194US5342511AOil filter with inner and outer coaxial filter elementsBALDWIN FILTERS INC·Filed 1993·Granted Aug 30, 1994·204 cites·11 claims
- 2293US6478958B1Apparatus for filtering impurities out of fluidBALDWIN FILTERS INC·Filed 2000·Granted Nov 12, 2002·159 cites·5 claims
- 2392US10569211B2Filter media and filter element with adhesive reinforcingBALDWIN FILTERS INC·Filed 2017·Granted Feb 25, 2020·4 cites·19 claims
- 2492US6787033B2Apparatus for filtering impurities out of fluidBALDWIN FILTERS INC·Filed 2002·Granted Sep 7, 2004·115 cites·23 claims
- 2592US5078877ADual flow and dual stage lubricant filter assemblyBALDWIN FILTERS INC·Filed 1989·Granted Jan 7, 1992·127 cites·9 claims
- 2691US9970394B2Filter housing, fluted filter and safety filterBALDWIN FILTERS INC·Filed 2013·Granted May 15, 2018·8 cites·21 claims
- 2791US6626299B1Environmentally friendly filter cartridgeBALDWIN FILTERS INC·Filed 1997·Granted Sep 30, 2003·84 cites·22 claims
- 2890US8016922B2Air filter with composite end capBALDWIN FILTERS INC·Filed 2010·Granted Sep 13, 2011·22 cites·15 claims
- 2990US7959701B2Filter and methodBALDWIN FILTERS INC·Filed 2007·Granted Jun 14, 2011·17 cites·76 claims
- 3089US7740679B2Air filter element with composite molded end capBALDWIN FILTERS INC·Filed 2006·Granted Jun 22, 2010·21 cites·37 claims
- 3189US7326342B2Fuel filter cartridge and keyed end capBALDWIN FILTERS INC·Filed 2004·Granted Feb 5, 2008·53 cites·20 claims
- 3289US7261756B2Safety filter elementBALDWIN FILTERS INC·Filed 2004·Granted Aug 28, 2007·48 cites·14 claims
- 3389US7179380B2Environmentally friendly dual lube venturi filter cartridgeBALDWIN FILTERS INC·Filed 2006·Granted Feb 20, 2007·15 cites·40 claims
- 3489US5919279ASelf contained heavy-duty air filterBALDWIN FILTERS INC·Filed 1998·Granted Jul 6, 1999·74 cites·13 claims
- 3589US5766468ADual media primary/secondary fuel filterBALDWIN FILTERS INC·Filed 1997·Granted Jun 16, 1998·87 cites·15 claims
- 3688US11925892B2Surface coated filter and methodBALDWIN FILTERS INC·Filed 2023·Granted Mar 12, 2024·1 cites·20 claims
- 3788US7909954B2Method and apparatus for winding a filter media packBALDWIN FILTERS INC·Filed 2007·Granted Mar 22, 2011·21 cites·22 claims
- 3888US7410572B2Combination particulate and acid-neutralizing filterBALDWIN FILTERS INC·Filed 2006·Granted Aug 12, 2008·14 cites·76 claims
- 3988US7255300B2Method and apparatus for winding a filter media packBALDWIN FILTERS INC·Filed 2004·Granted Aug 14, 2007·88 cites·15 claims
- 4088US7168573B2Environmentally friendly filter cartridgeBALDWIN FILTERS INC·Filed 2003·Granted Jan 30, 2007·35 cites·8 claims
- 4188US6607665B2Fuel filter element and cover assemblyBALDWIN FILTERS INC·Filed 2001·Granted Aug 19, 2003·58 cites·21 claims
- 4288US5525226APreformed gasket with retaining tabsBALDWIN FILTERS INC·Filed 1994·Granted Jun 11, 1996·86 cites·7 claims
- 4388US4872976AOil filter with multiple function valveBALDWIN FILTERS INC·Filed 1988·Granted Oct 10, 1989·84 cites·11 claims
- 4486US7850755B2Filter with improved fatigue performance and torque transferBALDWIN FILTERS INC·Filed 2005·Granted Dec 14, 2010·14 cites·22 claims
- 4586US7361271B2Environmentally friendly dual lube venturi filter cartridgeBALDWIN FILTERS INC·Filed 2007·Granted Apr 22, 2008·11 cites·32 claims
- 4686US7311208B2Environmentally friendly filter cartridgeBALDWIN FILTERS INC·Filed 2006·Granted Dec 25, 2007·11 cites·9 claims
- 4786US5180490ALubricant filter assembly with internal bypass lock-outBALDWIN FILTERS INC·Filed 1992·Granted Jan 19, 1993·90 cites·4 claims
- 4885US8042694B2Gathered filter media for an air filter and method of making sameBALDWIN FILTERS INC·Filed 2004·Granted Oct 25, 2011·42 cites·23 claims
- 4983US12318723B2Filter frame with foldable sealing flapBALDWIN FILTERS INC·Filed 2024·Granted Jun 3, 2025·0 cites·14 claims
- 5083US11459986B2Obround filter elementBALDWIN FILTERS INC·Filed 2019·Granted Oct 4, 2022·2 cites·8 claims
Showing the top 50 of 110 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when BALDWIN FILTERS INC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →