Littelfuse
Patents, Design & Utilities
Last updated:
List of all Littelfuse patents 216 in total
| Status | Patent |
|---|---|
Grant | Utility: PPTC composition and device having low switch temperature and sharp crystallization behavior Filling date: 6 Sep 2025 Issue date: 26 Jan 2021 |
Grant | Utility: Self-oscillating spread spectrum frequency control loop Filling date: 6 Sep 2025 Issue date: 26 Jan 2021 |
Grant | Utility: Circuit protection device with PTC element and secondary fuse Filling date: 6 Sep 2025 Issue date: 19 Jan 2021 |
Application | Utility: PPTC DEVICE HAVING RESISTIVE COMPONENT Filling date: 6 Sep 2025 Issue date: 7 Jan 2021 |
Grant | Utility: Overcurrent protection device and method of forming an overcurrent protection device Filling date: 6 Sep 2025 Issue date: 5 Jan 2021 |
Application | Utility: OVERCURRENT PROTECTION DEVICE AND METHOD OF FORMING AN OVERCURRENT PROTECTION DEVICE Filling date: 6 Sep 2025 Issue date: 31 Dec 2020 |
Grant | Utility: PPTC material with low percolation threshold for conductive filler Filling date: 6 Sep 2025 Issue date: 29 Dec 2020 |
Grant | Utility: Die stack assembly using an edge separation structure for connectivity through a die of the stack Filling date: 6 Sep 2025 Issue date: 1 Dec 2020 |
Grant | Utility: High current one-piece fuse element and split body Filling date: 6 Sep 2025 Issue date: 1 Dec 2020 |
Grant | Utility: Disc fuse Filling date: 6 Sep 2025 Issue date: 24 Nov 2020 |
Application | Utility: LOW PROFILE INTEGRATED FUSE MODULE Filling date: 6 Sep 2025 Issue date: 19 Nov 2020 |
Application | Utility: PPTC COMPOSITION AND DEVICE HAVING LOW SWITCH TEMPERATURE AND SHARP CRYSTALLIZATION BEHAVIOUR Filling date: 6 Sep 2025 Issue date: 12 Nov 2020 |
Application | Utility: ACTIVE/PASSIVE AUTOMOTIVE FUSE MODULE Filling date: 6 Sep 2025 Issue date: 12 Nov 2020 |
Application | Utility: CIRCUIT PROTECTION DEVICE WITH PTC ELEMENT AND SECONDARY FUSE Filling date: 6 Sep 2025 Issue date: 12 Nov 2020 |
Grant | Utility: Optically isolated latching solid state relay with low on resistance and linear operation Filling date: 6 Sep 2025 Issue date: 10 Nov 2020 |
Application | Utility: SURFACE MOUNTED FUSE DEVICE HAVING POSITIVE TEMPERATURE COEFFICIENT BODY Filling date: 6 Sep 2025 Issue date: 15 Oct 2020 |
Grant | Utility: Arc detection based on variance of current flow Filling date: 6 Sep 2025 Issue date: 13 Oct 2020 |
Grant | Utility: Surface mounted protection device Filling date: 6 Sep 2025 Issue date: 29 Sep 2020 |
Application | Utility: AUTOMOBILE RAIN AND TEMPERATURE SENSOR MODULE Filling date: 6 Sep 2025 Issue date: 24 Sep 2020 |
Application | Utility: OPTICAL RAIN SENSOR Filling date: 6 Sep 2025 Issue date: 24 Sep 2020 |
Grant | Utility: PPTC composition and device having low switch temperature and sharp crystallization behaviour Filling date: 6 Sep 2025 Issue date: 22 Sep 2020 |
Application | Utility: LINEAR ISOLATION AMPLIFIER AND METHOD FOR SELF-CALIBRATION THEREOF Filling date: 6 Sep 2025 Issue date: 17 Sep 2020 |
Application | Utility: HOTSPOT THERMAL MANAGEMENT OF POWER ELECTRONIC PACKAGE WITH NANO DIE ATTACH MATERIAL Filling date: 6 Sep 2025 Issue date: 17 Sep 2020 |
Grant | Utility: USB cable with thermal protection Filling date: 6 Sep 2025 Issue date: 15 Sep 2020 |
Grant | Utility: PPTC material with mixed conductive filler composition Filling date: 6 Sep 2025 Issue date: 15 Sep 2020 |
Application | Utility: FLOATING RING TERMINATION WITH REVERSE FIELD PLATE AND METHOD OF FORMATION Filling date: 6 Sep 2025 Issue date: 10 Sep 2020 |
Grant | Utility: Lead and lead frame for power package Filling date: 6 Sep 2025 Issue date: 1 Sep 2020 |
Grant | Utility: Self-powered electronic fuse Filling date: 6 Sep 2025 Issue date: 1 Sep 2020 |
Application | Utility: Integrated Fuse Module Filling date: 6 Sep 2025 Issue date: 27 Aug 2020 |
Application | Utility: Die Stack Assembly Using An Edge Separation Structure For Connectivity Through A Die Of The Stack Filling date: 6 Sep 2025 Issue date: 20 Aug 2020 |
Grant | Utility: System and method for single wire ground check measurement Filling date: 6 Sep 2025 Issue date: 18 Aug 2020 |
Grant | Utility: Die stack assembly using an edge separation structure for connectivity through a die of the stack Filling date: 6 Sep 2025 Issue date: 4 Aug 2020 |
Application | Utility: FUSES AND METHODS OF FORMING FUSES Filling date: 6 Sep 2025 Issue date: 23 Jul 2020 |
Application | Utility: PPTC COMPOSITION AND DEVICE HAVING LOW SWITCH TEMPERATURE AND SHARP CRYSTALLIZATION BEHAVIOUR Filling date: 6 Sep 2025 Issue date: 23 Jul 2020 |
Grant | Utility: Discrete power transistor package having solderless DBC to leadframe attach Filling date: 6 Sep 2025 Issue date: 21 Jul 2020 |
Application | Utility: PVDF PIEZOELECTRIC RELIABILITY AND ELECTRODE ADHESION IMPROVEMENT Filling date: 6 Sep 2025 Issue date: 16 Jul 2020 |
Grant | Utility: Fast recovery inverse diode Filling date: 6 Sep 2025 Issue date: 14 Jul 2020 |
Grant | Utility: Magnetically activated switch having magnetostrictive material Filling date: 6 Sep 2025 Issue date: 14 Jul 2020 |
Grant | Utility: PPTC composition and device having thermal degradation resistance Filling date: 6 Sep 2025 Issue date: 14 Jul 2020 |
Grant | Utility: Self-powered electronic fuse with storage capacitor that charges with minimal disturbance of load current through the fuse Filling date: 6 Sep 2025 Issue date: 14 Jul 2020 |
Application | Utility: TEMPERATURE SENSING TAPE, ASSEMBLY, AND METHOD OF TEMPERATURE CONTROL Filling date: 6 Sep 2025 Issue date: 9 Jul 2020 |
Application | Utility: CONTACT SWITCH COATING Filling date: 6 Sep 2025 Issue date: 9 Jul 2020 |
Application | Utility: SEALED BATTERY FUSE MODULE WITH ENERGY DISSIPATING CAP Filling date: 6 Sep 2025 Issue date: 25 Jun 2020 |
Application | Utility: FUSE DEVICE HAVING PHASE CHANGE MATERIAL Filling date: 6 Sep 2025 Issue date: 18 Jun 2020 |
Grant | Utility: Manufacturing method for foam fuse filler and cartridge fuse Filling date: 6 Sep 2025 Issue date: 16 Jun 2020 |
Grant | Utility: Methods for manufacturing an insulated busbar Filling date: 6 Sep 2025 Issue date: 16 Jun 2020 |
Application | Utility: LOW PROFILE INTEGRATED FUSE MODULE Filling date: 6 Sep 2025 Issue date: 11 Jun 2020 |
Application | Utility: STEERING POSITION ROTARY SENSOR ASSEMBLY Filling date: 6 Sep 2025 Issue date: 11 Jun 2020 |
Grant | Utility: Wide operating range relay controller system Filling date: 6 Sep 2025 Issue date: 9 Jun 2020 |
Application | Utility: THIN PROFILE POWER SEMICONDUCTOR DEVICE PACKAGE HAVING FACE-TO-FACE MOUNTED DICE AND NO INTERNAL BONDWIRES Filling date: 6 Sep 2025 Issue date: 4 Jun 2020 |
Showing 100 to 150 of 216 patents.