Assignee
LITTELFUSE INC
US·466 granted patents·94 pending applications·5,865 citations·filing 1973–2025
Top patents by PatentIndex Score
560 records- 0197US5880668AElectrical devices having improved PTC polymeric compositionsLITTELFUSE INC·Filed 1996·Granted Mar 9, 1999·358 cites·12 claims
- 0296US6191928B1Surface-mountable device for protection against electrostatic damage to electronic componentsLITTELFUSE INC·Filed 1999·Granted Feb 20, 2001·188 cites·34 claims
- 0395US6878004B2Multi-element fuse arrayLITTELFUSE INC·Filed 2002·Granted Apr 12, 2005·60 cites·26 claims
- 0495US6693508B2Protection of electrical devices with voltage variable materialsLITTELFUSE INC·Filed 2000·Granted Feb 17, 2004·85 cites·19 claims
- 0595US6376774B1Housing for cable assemblyLITTELFUSE INC·Filed 2000·Granted Apr 23, 2002·110 cites·15 claims
- 0695US4670729AElectrical fuseLITTELFUSE INC·Filed 1986·Granted Jun 2, 1987·70 cites·21 claims
- 0795US4635023AFuse assembly having a non-sagging suspended fuse linkLITTELFUSE INC·Filed 1985·Granted Jan 6, 1987·70 cites·15 claims
- 0895US4608548AMiniature fuseLITTELFUSE INC·Filed 1985·Granted Aug 26, 1986·94 cites·22 claims
- 0994US7643265B2Gas-filled surge arrester, activating compound, ignition stripes and method thereforeLITTELFUSE INC·Filed 2006·Granted Jan 5, 2010·30 cites·27 claims
- 1094US6522515B1Data and power connector portLITTELFUSE INC·Filed 2000·Granted Feb 18, 2003·69 cites·20 claims
- 1194US6023028ASurface-mountable device having a voltage variable polgmeric material for protection against electrostatic damage to electronic componentsLITTELFUSE INC·Filed 1995·Granted Feb 8, 2000·77 cites·7 claims
- 1294US5939968AElectrical apparatus for overcurrent protection of electrical circuitsLITTELFUSE INC·Filed 1998·Granted Aug 17, 1999·78 cites·15 claims
- 1394US5229739AAutomotive high current fuseLITTELFUSE INC·Filed 1992·Granted Jul 20, 1993·102 cites·15 claims
- 1493US9960545B2USB cable with thermal protectionLITTELFUSE INC·Filed 2016·Granted May 1, 2018·15 cites·20 claims
- 1593US7609141B2Flexible circuit having overvoltage protectionLITTELFUSE INC·Filed 2007·Granted Oct 27, 2009·27 cites·20 claims
- 1693US7183891B2Direct application voltage variable material, devices employing same and methods of manufacturing such devicesLITTELFUSE INC·Filed 2004·Granted Feb 27, 2007·74 cites·30 claims
- 1793US5923239APrinted circuit board assembly having an integrated fusible linkLITTELFUSE INC·Filed 1997·Granted Jul 13, 1999·89 cites·24 claims
- 1893US4131869APlug-in fuse assembly constructionLITTELFUSE INC·Filed 1977·Granted Dec 26, 1978·37 cites·17 claims
- 1992US11636994B2Attaching an isolated single stud fuse to an electrical deviceLITTELFUSE INC·Filed 2022·Granted Apr 25, 2023·2 cites·20 claims
- 2092US10290457B1Inner cap for high voltage fuseLITTELFUSE INC·Filed 2018·Granted May 14, 2019·6 cites·20 claims
- 2192US7983024B2Fuse card system for automotive circuit protectionLITTELFUSE INC·Filed 2007·Granted Jul 19, 2011·23 cites·31 claims
- 2292US7659804B2High voltage/high current fuseLITTELFUSE INC·Filed 2005·Granted Feb 9, 2010·26 cites·29 claims
- 2392US6838972B1PTC circuit protection devicesLITTELFUSE INC·Filed 2000·Granted Jan 4, 2005·33 cites·21 claims
- 2492US6642297B1Polymer composite materials for electrostatic discharge protectionLITTELFUSE INC·Filed 1999·Granted Nov 4, 2003·60 cites·32 claims
- 2592US6549114B2Protection of electrical devices with voltage variable materialsLITTELFUSE INC·Filed 1999·Granted Apr 15, 2003·83 cites·20 claims
- 2692US6282072B1Electrical devices having a polymer PTC arrayLITTELFUSE INC·Filed 1999·Granted Aug 28, 2001·64 cites·16 claims
- 2792US4604602APlug-in fuse assembly with stackable housingLITTELFUSE INC·Filed 1985·Granted Aug 5, 1986·61 cites·14 claims
- 2892US4563666AMiniature fuseLITTELFUSE INC·Filed 1984·Granted Jan 7, 1986·48 cites·51 claims
- 2992US4023265AMethod of making a miniature plug-in fuseLITTELFUSE INC·Filed 1976·Granted May 17, 1977·43 cites·18 claims
- 3091US10573480B2Disc fuseLITTELFUSE INC·Filed 2018·Granted Feb 25, 2020·7 cites·10 claims
- 3191US10325746B2Ventilated fuse housingLITTELFUSE INC·Filed 2016·Granted Jun 18, 2019·6 cites·10 claims
- 3291US4656453ACartridge fuse with two arc-quenching end plugsLITTELFUSE INC·Filed 1985·Granted Apr 7, 1987·65 cites·5 claims
- 3391US4023264AMethod of making miniature plug-in fuses of different fuse ratingsLITTELFUSE INC·Filed 1976·Granted May 17, 1977·50 cites·14 claims
- 3490US11437212B1Surface mount fuse with solder link and de-wetting substrateLITTELFUSE INC·Filed 2021·Granted Sep 6, 2022·2 cites·8 claims
- 3590US11387068B2Active/passive fuse moduleLITTELFUSE INC·Filed 2020·Granted Jul 12, 2022·2 cites·7 claims
- 3690US10361276B1Embedded field plate field effect transistorLITTELFUSE INC·Filed 2018·Granted Jul 23, 2019·7 cites·16 claims
- 3790US6510032B1Integrated overcurrent and overvoltage apparatus for use in the protection of telecommunication circuitsLITTELFUSE INC·Filed 2000·Granted Jan 21, 2003·18 cites·33 claims
- 3890US6507264B1Integral fuse for use in semiconductor packagesLITTELFUSE INC·Filed 2000·Granted Jan 14, 2003·59 cites·25 claims
- 3990US5552757ASurface-mounted fuse deviceLITTELFUSE INC·Filed 1994·Granted Sep 3, 1996·57 cites·17 claims
- 4090US4661793APlug-in fuse assembly with specially configured fuse linkLITTELFUSE INC·Filed 1985·Granted Apr 28, 1987·46 cites·14 claims
- 4190US4636765AFuse with corrugated filamentLITTELFUSE INC·Filed 1985·Granted Jan 13, 1987·40 cites·9 claims
- 4290US4580124APlug-in fuse assemblyLITTELFUSE INC·Filed 1984·Granted Apr 1, 1986·42 cites·16 claims
- 4390US4099320AMethod of making a miniature plug-in fuseLITTELFUSE INC·Filed 1977·Granted Jul 11, 1978·43 cites·13 claims
- 4490US2026074136A1Unsealed single fuse holderLITTELFUSE INC·Filed 2025·Application pending·0 cites
- 4589US11488749B2PPTC actuator heaterLITTELFUSE INC·Filed 2021·Granted Nov 1, 2022·2 cites·9 claims
- 4689US10685766B2Methods for manufacturing an insulated busbarLITTELFUSE INC·Filed 2017·Granted Jun 16, 2020·3 cites·8 claims
- 4789US10483070B1Fuses and methods of forming fusesLITTELFUSE INC·Filed 2019·Granted Nov 19, 2019·4 cites·19 claims
- 4889US7202770B2Voltage variable material for direct application and devices employing sameLITTELFUSE INC·Filed 2003·Granted Apr 10, 2007·72 cites·26 claims
- 4989US6636404B1Integrated overcurrent and overvoltage apparatus for use in the protection of telecommunication circuitsLITTELFUSE INC·Filed 2000·Granted Oct 21, 2003·20 cites·20 claims
- 5089US6452474B1Barrier fuseLITTELFUSE INC·Filed 2000·Granted Sep 17, 2002·32 cites·19 claims
Showing the top 50 of 560 patent records by PatentIndex Score.
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