LITTELFUSE, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 11022
 
  
 
H01C RESISTORS643
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 6128
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 29333
 
  
 
H01B CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING, OR DIELECTRIC PROPERTIES 2054
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 20113
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 19137
 
  
 
1303 EQUIPMENT FOR DISTRIBUTION OR CONTROL OF ELECTRIC POWER1556
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 12147
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 9111

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0065,327 ELECTROMAGNETIC INTERFERENCE SUPPRESSION DEVICE AND METHOD FOR MANUFACTURING SAMEApr 18, 16Mar 08, 18[B29C, H05K]
2018/0061,534 ADHESIVE POSITIVE TEMPERATURE COEFFICIENT MATERIALAug 31, 16Mar 01, 18[H01C, C08K]
2018/0047,485 FLEXIBLE POSITIVE TEMPERATURE COEFFICIENT DEVICE WITH BATTERY MANAGEMENT SYSTEMAug 15, 17Feb 15, 18[H02J, H01M, H01C, H02H]
2018/0033,525 METHODS FOR MANUFACTURING AN INSULATED BUSBAROct 06, 17Feb 01, 18[H01B]
2017/0373,142 SEMICONDUCTOR DEVICE HAVING SIDE-DIFFUSED TRENCH PLUGJun 23, 16Dec 28, 17[H01L]
2017/0358,567 TRANSIENT SUPPRESSING CIRCUIT ARRANGEMENTSMay 03, 17Dec 14, 17[H01L]
2017/0294,251 ULTRATHIN POSITIVE TEMPERATURE COEFFICIENT SHEET AND METHOD FOR MAKING SAMEApr 08, 16Oct 12, 17[H01C]
2017/0154,748 LOW-CURRENT FUSE STAMPING METHODFeb 09, 17Jun 01, 17[H01H]
2017/0110,279 THERMAL METAL OXIDE VARISTOR CIRCUIT PROTECTION DEVICEDec 28, 16Apr 20, 17[H01C, H01H]
2017/0103,831 Methods for Manufacturing an Insulated BusbarOct 13, 15Apr 13, 17[H01B]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9923362 Protective deviceDec 17, 12Mar 20, 18[H01C, H01H, H02H]
9917429 Power distribution housingSep 09, 16Mar 13, 18[H02G]
9911565 Sealed modular power distribution apparatusOct 01, 15Mar 06, 18[H01R, H02B, H01H]
9911566 Foam fuse filler and cartridge fuseOct 01, 14Mar 06, 18[H01H, C08K]
9911567 Disconnect switch with integrated thermal breakerJun 08, 15Mar 06, 18[H01H]
9892880 Insert for fuse housingJan 25, 16Feb 13, 18[H01H]
9887057 Remote activated fuse and circuitNov 20, 12Feb 06, 18[H01H]
9831054 Insulated thermal cut-off deviceMar 27, 14Nov 28, 17[H01H]
9831055 Surface mount electrical fuse with a support bridgeOct 15, 14Nov 28, 17[H01H]
9821762 Seat belt buckleJan 06, 16Nov 21, 17[B60R, H01H, A44B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2017/0301,434 METHODS FOR MANUFACTURING AN INSULATED BUSBARAbandonedApr 18, 16Oct 19, 17[H01B]
2016/0005,561 LAMINATED ELECTRICAL FUSEAbandonedSep 17, 15Jan 07, 16[H01H]
2015/0308,952 UREA CONCENTRATION SENSORAbandonedApr 22, 15Oct 29, 15[G01N]
2015/0200,067 CERAMIC CHIP FUSE WITH OFFSET FUSE ELEMENTAbandonedJan 09, 15Jul 16, 15[H01H]
2015/0009,007 LAMINATED ELECTRICAL FUSEAbandonedSep 23, 14Jan 08, 15[H01H]
2014/0368,309 CIRCUIT PROTECTION DEVICEAbandonedJun 18, 13Dec 18, 14[H02H]
2014/0300,444 LAMINATED ELECTRICAL FUSEAbandonedJun 24, 14Oct 09, 14[H01H]
2014/0266,565 LAMINATED ELECTRICAL FUSEAbandonedApr 15, 14Sep 18, 14[H01H]
2013/0286,700 Zero-Standby Current Switch for Control of a Power ConverterAbandonedApr 25, 12Oct 31, 13[H02M]
2013/0286,701 Zero-Standby Current Switch for Control of a Power ConverterAbandonedApr 25, 12Oct 31, 13[H02M]
8399773 Substrates having voltage switchable dielectric materialsExpiredJan 27, 10Mar 19, 13[B05D, G06F, H05K]
8339235 Housing securing apparatus for electrical components, especially fusesExpiredAug 06, 08Dec 25, 12[H01H]
2012/0307,467 Oxygen-Barrier Packaged Surface Mount DeviceAbandonedJun 03, 11Dec 06, 12[H05K, B32B]
8310064 Semiconductor devices including voltage switchable materials for over-voltage protectionExpiredFeb 24, 11Nov 13, 12[H01L]
2012/0217,450 VOLTAGE SWITCHABLE DIELECTRIC MATERIAL HAVING BONDED PARTICLE CONSTITUENTSAbandonedMay 10, 12Aug 30, 12[B82Y, H01B]
2012/0218,674 Overcurrent Protection SystemAbandonedFeb 28, 11Aug 30, 12[H02H]
2012/0211,773 LIGHT-EMITTING DEVICES COMPRISING NON-LINEAR ELECTRICALLY PROTECTIVE MATERIALAbandonedJan 26, 12Aug 23, 12[H01L]
2012/0212,904 FLEXIBLE CIRCUITS AND SUBSTRATES COMPRISING VOLTAGE SWITCHABLE DIELECTRIC MATERIALAbandonedJan 25, 12Aug 23, 12[H05K]
2012/0200,963 SYSTEM AND METHOD FOR PROTECTING A COMPUTING DEVICE USING VSD MATERIAL, AND METHOD FOR DESIGNING SAMEAbandonedNov 07, 11Aug 09, 12[G06F, H02H]
2012/0194,958 Three-Function Reflowable Circuit Protection DeviceAbandonedAug 12, 11Aug 02, 12[H02H, H05K]

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