Littelfuse, Inc.

États‑Unis d’Amérique


 
Quantité totale PI 779
Quantité totale incluant filiales 783 (+ 4 pour les filiales)
Rang # Quantité totale PI 1 683
Note d'activité PI 3,2/5.0    301
Rang # Activité PI 2 375
Symbole boursier
ISIN US5370081045
Capitalisation 6,099M  (USD)
Industrie Electronics Distribution
Secteur Technology
Classe Nice dominante Appareils et instruments scienti...

Brevets

Marques

508 73
17 24
120 14
23
 
Dernier brevet 2025 - Terminal designs for adjusting h...
Premier brevet 1973 - Rocker switch
Dernière marque 2025 - LF LOGIK
Première marque 1945 - LF

Filiales

3 subsidiaries with IP (2 patents, 2 trademarks)

2 subsidiaries without IP

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Industrie (Classification de Nice)

Derniers inventions, produits et services

2025 P/S Downloadable software application for configuring electronic devices which communicate on a Contr...
P/S Fuses; fuses for electrical circuits; electrical circuit switches.
P/S Fuses; fuses for electrical circuits; electrical circuit switches
P/S Electric current devices, including, switches and power transistors.
2024 Invention Self-limiting heater. A self-limiting heater and method for building the self-limiting heater ar...
Invention Terminal designs for adjusting harness protection time. A terminal assembly, arranged for an aut...
P/S electric current devices, including, switches and power transistors
Invention Metal tab for power semiconductor module. A connector for contacting a semiconductor chip. The co...
P/S Fuses; fuses for electrical circuits; electrical circuit switches
Invention Vertical fuse block. Approaches disclosed herein are related to vertically oriented fusible devi...
Invention Ultra-thin weldable fuse. Disclosed are various protection devices and associated methods. In so...
Invention Pptc small planar smd temperature sensors and overcurrent devices. A device assembly for surface...
Invention Ptc heater with improved temperature distribution and uniformity. A positive temperature coeffic...
Invention Integrated heterogeneous thermistor arrangement for high voltage pre-charge circuit. A pre-charg...
Invention Overcurrent protection based on slope detection. Disclosed is a control circuit, for use in a so...
Invention Pre-charge short circuit detection. Disclosed is an adaptive pre-charge control circuit, for use...
Invention Hybrid conductive paste for fast-opening, low-rating fuses. Provided herein a circuit protection...
Invention Gradient bridge cross-section for improved thermal & osr fuse performance. A fuse element includ...
Invention Current sensor with diagnostic feature. Provided herein are approaches for improving performance...
2023 P/S Circuit protection devices.
Invention Fuse with arc suppressing mastic material. A fuse comprising including a housing, a fusible elem...
Invention Temperature sensing tape having a temperature sensor element with multiple crystallization points...
Invention Unsealed single fuse holder. A fuse holder includes a movable tab, a base, and a cover. A stud i...
Invention Metal tab for power semiconductor module. A connector for contacting a semiconductor chip. The c...
Invention Thin film coating packaging for device having meltable and wetting links. A method for creating ...
Invention Metal oxide-polyaniline polymer matrix varistor. A method of manufacturing a metal oxide varisto...
Invention Overcurrent protection of power semiconductor packages using integrated positive temperature indi...
P/S Thermal sensing device, namely sensors for measuring temperature, for use in electronics and circ...
P/S Thermal sensing device, namely, sensors for measuring temperature, for use in electronics and cir...
Invention Solid state relay harvesting power from load by measuring zero crossing. A relay circuit, includi...
Invention Leadframeless electrically isolated power semiconductor package. A lead-free power semiconductor...
Invention Active/passive fuse module. An active/passive fuse module including a fuse having an electricall...
Invention Electrically isolated discrete package with high performance ceramic substrate. A substrate pack...
Invention Low resistance, high voltage and resistance stable pptc material and manufacturing. A novel poly...
Invention Method to connect power terminal to substrate within semiconductor package. A method of manufact...
Invention Fuse assembly using coated wound wire and sacrificial core. A fuse assembly includes a housing an...
Invention Reverse blocking insulated-gate bipolar transistor. Methods for making reverse-blocking insulate...
Invention High thermal conductivity fuse holder. A fuse holder includes a housing and a knob. The housing h...
Invention Smd fuse with pre-molded shield. A fuse shield features a cylindrical body, a first cap cover, a ...
2022 Invention High breaking capacity fuses with metal reinforcements. A fuse includes a fuse body, two termina...
Invention Cdot device for wireless charging. A battery protection device includes a Charge/Discharge Over ...
Invention Adaptive pre-charge control for electric vehicle dc link capacitor. An adaptive pre-charge contr...
Invention Isolated power packaging with flexible connectivity. An isolated packaging structure and methods...
Invention Modular power distribution unit. A Power Distribution Unit (PDU) includes a cover and a base. Th...
Invention Contactor with integrated pyrotechnic interrupter. An electrical contactor including a contactor ...
Invention Protection device with wall vent for breaking capacity improvement. Provided are circuit protecti...
Invention High breaking capacity fuse with fire-extinguishing pads. A high breaking capacity fuse including...
Invention Unsealed single fuse holder. A fuse holder includes a movable tab, a base, and a cover. A stud is...
Invention Inner chambers with blast attenuation geometry on fuses. A fuse includes multiple stacked layers,...
Invention Fuse body with notched ends. A fuse including a fuse body having first and second end faces at op...
Invention Power substrate assembly with reduced warpage. A substrate assembly may include a power substrat...
Invention Solderless and pressure contact connection. A pressure contact assembly includes a power substra...
Invention High reliability semiconductor package design. A power semiconductor device package. The package...
Invention Step-terminated smd fuse. A fuse includes a stack, a flattened wire, and a terminal. The stack ha...
Invention Arrayed element design for chip fuse. A chip fuse includes a first terminal disposed on a first e...
Invention Solid state relay harvesting power from load by measuring stored energy. A relay circuit may incl...
2020 Invention Arc quenching fuse filler for current limiting fuses. A method for producing an arc quenching fu...
P/S Thermal sensing device for use in electronics and circuit protection devices; temperature sensors...
2019 P/S Diodes; electric diodes; transient suppressing diodes; thyristors; surge protectors.
2018 P/S Inventory monitoring for electrical fuses; analysis of a customer's inventory of electrical fuses...
2017 P/S Thermal sensors for use in electronics and circuit protectors; thermal sensors sold as an integra...
P/S Thermal sensing device for use in electronics and circuit protection devices; thermal sensing dev...
P/S Electrostatic discharge (ESD) protectors; electrostatic discharge (ESD) suppressors
P/S Electrostatic discharge (ESD) protection devices; electrostatic discharge (ESD) suppressors
P/S Sensors for measuring distances; sensors for determining position; electric sensors; liquid level...
P/S Circuit overload protector devices; circuit overvoltage protector devices; circuit overcurrent pr...
P/S Circuit overload protectors; circuit overvoltage protectors; circuit overcurrent protectors; circ...
P/S Circuit protection devices, namely, circuit overload protector devices; circuit current overload ...
2016 P/S Variable frequency drives for large power applications in the oil and gas, marine, metal, mining,...
P/S Circuit overload protector devices
P/S Electrical relays for motor protection and control
P/S Electrical relays for submersible pump protection and control.
P/S Varistors; resistors.
2015 P/S Thermistor apparatus for electrical circuit protection made from conductive polymer material.
P/S Electric generators; diesel generators; current generators; mobile electric power generators; sta...
P/S Fuses; electrical fuses; fuses for automobiles; fuse clips; mounting devices for fuses; circuit b...
P/S Electrical fuses; fuses for automobiles.
P/S Electrical fuses; fuses for automobiles; electrical fuse holders; devices for holding multiple fu...
P/S Electrical switches; switching elements, including reed switches; magnetic sensors, including ree...
P/S Electrical fuses; fuse blocks; fuse holders; electrical switches; electrical indicator switches
P/S Circuit overload protector devices; thermistors
P/S Fuses; electrical fuses; fuses for automobiles; fuse clips; mounting devices for fuses; circuit ...
P/S Electric generators; diesel generators; current generators; mobile electric power generators; st...
P/S Electrical fuses; fuses for automobiles
P/S Electrical fuses; fuses for automobiles; electrical fuses and holder therefor, all sold as a unit
2014 P/S Fuses; electrical fuses; fuses for automobiles; fuse clips; mounting devices for fuses; semicondu...
P/S Fuses; fuses for automobiles; fuse clips; mounting devices for fuses; semiconductors; rectifiers;...