Littelfuse, Inc. Trademarks
LF

LF

Filed: October 13, 1945
ELECTRICAL FUSES, ELECTRICAL FUSE MOUNTINGS, ELECTRICAL FUSE CLIPS, ELECTRICAL CIRCUIT BREAKERS, AND NEON PILOT LIGHTS AND…
Owned by: Littelfuse, Inc.
Serial Number: 71489916

ATO

ATO

Filed: August 15, 1979
Electrical Fuses for Automotive Vehicles
Owned by: Littelfuse, Inc.
Serial Number: 73227493

OMNI-BLOK

OMNI-BLOK

Filed: July 8, 1982
Electrical Fuse Blocks
Owned by: Littelfuse, Inc.
Serial Number: 73373548

MAGNUM

MAGNUM

Filed: June 11, 1990
fuses
Owned by: Littelfuse, Inc.
Serial Number: 74067549

PICO-SMD

PICO-SMD

Filed: September 4, 1990
electrical fuses
Owned by: Littelfuse, Inc.
Serial Number: 74093476

POWR-GARD

POWR-GARD

Filed: October 2, 1992
industrial fuses for industrial use
Owned by: Littelfuse, Inc.
Serial Number: 74319380

PRO TEK

PRO TEK

Filed: March 6, 2000
modular bins for organizing, storing and displaying electrical devices
Owned by: Littelfuse, Inc.
Serial Number: 75936305

SPA

SPA

Filed: April 6, 2007
Diodes and silicon electrical diode arrays
Owned by: Littelfuse, Inc.
Serial Number: 77150662

HAZGARD

HAZGARD

Filed: December 3, 2007
Electric fuses
Owned by: Littelfuse, Inc.
Serial Number: 77342906

EXPERTISE APPLIED ANSWERS DELIVERED

EXPERTISE APPLIED ANSWERS DELIVERED

Filed: March 7, 2008
Training services, namely, providing workshops and seminars in the field of electrical safety
Owned by: Littelfuse, Inc.
Serial Number: 77416530

K-TEC

K-TEC

Filed: April 7, 2008
Ground fault circuit interrupter devices, ground fault relays and residual current relays
Owned by: Littelfuse, Inc.
Serial Number: 77442091

MFLEC

MFLEC

Multiplexed fuse boxes for electrical components, such as fuses, used with vehicles, such as automobiles, trucks, motorcycles…
Owned by: LITTELFUSE, INC.
Serial Number: 77445967

FLEC

FLEC

Filed: April 11, 2008
Fuse boxes for electrical components, such as fuses, used with vehicles, such as automobiles, trucks, motorcycles, boats…
Owned by: Littelfuse, Inc.
Serial Number: 77445979

SHOCK BLOCK

SHOCK BLOCK

Filed: April 18, 2008
Ground fault circuit interrupter devices, ground fault relays and residual current relays
Owned by: Littelfuse, Inc.
Serial Number: 77452409

MASTERFET

MASTERFET

field effect transistors
Owned by: LITTELFUSE, INC.
Serial Number: 78588327

FETFUSE

FETFUSE

protectors
Owned by: LITTELFUSE, INC.
Serial Number: 78588923

ITV

ITV

Circuit protection device for battery packs to protect against over-charging, over-temperature and over-voltage
Owned by: Littelfuse, Inc.
Serial Number: 85577141

IVT

IVT

Circuit Protection Device for battery packs to protect against overcharging, over-temperature and over-voltage
Owned by: Littelfuse, Inc.
Serial Number: 85582587

SPEED2DESIGN

SPEED2DESIGN

Filed: May 21, 2012
Contests and incentive award programs to promote the sale of products and services of others; Promoting the sale of goods…
Owned by: Littelfuse, Inc.
Serial Number: 85630579

SPEED 2 DESIGN

SPEED 2 DESIGN

Filed: May 21, 2012
Contests and incentive award programs to promote the sale of products and services of others; Promoting the sale of goods…
Owned by: Littelfuse, Inc.
Serial Number: 85630586

TCMOV

TCMOV

Metal Oxide Varistors
Owned by: Littelfuse, Inc.
Serial Number: 85694061

SMOV

SMOV

Filed: August 2, 2012
Metal Oxide Varistors
Owned by: Littelfuse, Inc.
Serial Number: 85694082

POLYBREAKER

POLYBREAKER

Circuit breakers
Owned by: Littelfuse, Inc.
Serial Number: 85927790

ENGINEERED TO PERFORM. BUILT TO LAST.

ENGINEERED TO PERFORM. BUILT TO LAST.

Trailer-mounted and skid-mounted diesel generators for use in the mining industry, oil and gas industry, and other industrial…
Owned by: Littelfuse, Inc.
Serial Number: 85964505

LITTELFUSE IDESIGN

LITTELFUSE IDESIGN

Filed: September 20, 2013
Providing a website featuring on-line non-downloadable software tool to assist with the selection of parts, creation of…
Owned by: Littelfuse, Inc.
Serial Number: 86070432

I DESIGN

I DESIGN

Filed: February 10, 2014
Providing a website featuring on-line non-downloadable engineering software tools to assist with the selection of parts,…
Owned by: Littelfuse, Inc.
Serial Number: 86189493

AUMOV

AUMOV

Filed: October 20, 2014
Varistors; automotive varistors
Owned by: Littelfuse, Inc.
Serial Number: 86428759

LITTELFUSE

LITTELFUSE

Filed: October 27, 2014
[ Electric generators; diesel generators; current generators; mobile electric power generators; starters for motors, including…
Owned by: Littelfuse, Inc.
Serial Number: 86436025

L

L

Filed: October 27, 2014
[ Electric generators; diesel generators; current generators; mobile electric power generators; starters for motors, including…
Owned by: Littelfuse, Inc.
Serial Number: 86436058

AUML

AUML

Filed: November 14, 2014
Varistors; automotive varistors
Owned by: Littelfuse, Inc.
Serial Number: 86454486

ULTRAMOV

ULTRAMOV

Filed: November 14, 2014
Varistors
Owned by: Littelfuse, Inc.
Serial Number: 86454532

ZCASE

ZCASE

Filed: November 14, 2014
Electrical fuses; fuses for automobiles; electrical fuse holders; devices for holding multiple fuses in a power distribution…
Owned by: Littelfuse, Inc.
Serial Number: 86454931

MCASE

MCASE

Filed: November 14, 2014
Electrical fuses; fuses for automobiles
Owned by: Littelfuse, Inc.
Serial Number: 86454966

MICRO2

MICRO2

Filed: November 14, 2014
Electrical fuses; fuses for automobiles; electrical shunts
Owned by: Littelfuse, Inc.
Serial Number: 86455026

MICRO3

MICRO3

Filed: November 14, 2014
Electrical fuses; fuses for automobiles
Owned by: Littelfuse, Inc.
Serial Number: 86455059

LF

LF

Filed: December 18, 2014
Fuses; electrical fuses; fuses for automobiles; fuse clips; mounting devices for fuses; semiconductors; rectifiers; circuit…
Owned by: Littelfuse, Inc.
Serial Number: 86485569

LF

LF

Filed: December 18, 2014
Fuses; fuses for automobiles; fuse clips; mounting devices for fuses; semiconductors; rectifiers; circuit overload protector…
Owned by: Littelfuse, Inc.
Serial Number: 86485576

MCASE+

MCASE+

Filed: January 4, 2015
Electrical fuses; fuses for automobiles
Owned by: Littelfuse, Inc.
Serial Number: 86494786

MASTERFUSE

MASTERFUSE

Filed: January 4, 2015
Electrical fuses; fuses for automobiles; electrical fuses and holder therefor, all sold as a unit
Owned by: Littelfuse, Inc.
Serial Number: 86494788

POLYFUSE

POLYFUSE

Filed: January 13, 2015
Circuit overload protector devices; thermistors
Owned by: Littelfuse, Inc.
Serial Number: 86502215