Littelfuse, Inc. Trademarks
POWR-SPEED

POWR-SPEED

Filed: January 13, 2015
Electrical fuses; fuse blocks; fuse holders; electrical switches; electrical indicator switches
Owned by: Littelfuse, Inc.
Serial Number: 86502295

HEARTBEAT

HEARTBEAT

Visual indicator, sold as an integral component of an electrical relay, that indicates the status of sensors connected to…
Owned by: Littelfuse, Inc.
Serial Number: 86579677

RAPIDSWITCH

RAPIDSWITCH

Electric circuit switches; electric switches; power switches
Owned by: Littelfuse, Inc.
Serial Number: 86598936

HEARTBEAT SENSOR TECHNOLOGY

HEARTBEAT SENSOR TECHNOLOGY

Visual indicator, sold as an integral component of an electrical relay, that indicates the status of sensors connected to…
Owned by: Littelfuse, Inc.
Serial Number: 86631705

RTP

RTP

Filed: May 12, 2016
Circuit overload protector devices
Owned by: Littelfuse, Inc.
Serial Number: 87035432

MHP-TA

MHP-TA

Circuit overload protector devices
Owned by: Littelfuse, Inc.
Serial Number: 87035446

ENDURADRIVE

ENDURADRIVE

Variable frequency drives for large power applications in the oil and gas, marine, metal, and other industries
Owned by: Littelfuse, Inc.
Serial Number: 87057057

POLYSWITCH

POLYSWITCH

Filed: May 8, 2017
Circuit protection devices, namely, circuit overload protector devices; circuit current overload protector devices; polymeric…
Owned by: Littelfuse, Inc.
Serial Number: 87441032

PWG

PWG

Filed: May 24, 2017
Sensors for measuring distances; sensors for determining position; electric sensors; liquid level sensors; electronic magnetostrictive…
Owned by: Littelfuse, Inc.
Serial Number: 87462840

POLYMOV

POLYMOV

Circuit overload protector devices; circuit overvoltage protector devices; circuit overcurrent protector devices; circuit…
Owned by: Littelfuse, Inc.
Serial Number: 87472237

U.S. SENSOR CORP.

U.S. SENSOR CORP.

Filed: July 13, 2017
Thermistors; negative temperature coefficient (NTC) thermistors; electric resistances; temperature sensors; resistance temperature…
Owned by: Littelfuse, Inc.
Serial Number: 87527119

U.S. SENSOR CORP.

U.S. SENSOR CORP.

Filed: July 13, 2017
Thermistors; negative temperature coefficient (NTC) thermistors; electric resistances; temperature sensors; resistance temperature…
Owned by: Littelfuse, Inc.
Serial Number: 87527155

XTREME-GUARD

XTREME-GUARD

Filed: July 28, 2017
Electrostatic discharge (ESD) protection devices; electrostatic discharge (ESD) suppressors
Owned by: Littelfuse, Inc.
Serial Number: 87547781

SETP

SETP

Filed: November 19, 2017
Thermal sensing device for use in electronics and circuit protection devices; temperature sensors; circuit over-temperature…
Owned by: Littelfuse, Inc.
Serial Number: 87690547

MRO PLUS

MRO PLUS

Filed: October 19, 2018
Inventory monitoring for electrical fuses; analysis of a customer's inventory of electrical fuses to ensure the customer…
Owned by: Littelfuse, Inc.
Serial Number: 88162151

MROPLUS

MROPLUS

Filed: October 19, 2018
Inventory monitoring for electrical fuses; analysis of a customer's inventory of electrical fuses to ensure the customer…
Owned by: Littelfuse, Inc.
Serial Number: 88162216

LFGO

LFGO

Filed: January 18, 2019
Diodes; electric diodes; transient suppressing diodes; thyristors; surge protectors
Owned by: Littelfuse, Inc.
Serial Number: 88267839

TTAPE

TTAPE

Filed: February 7, 2020
Thermal sensing device for use in electronics and circuit protection devices; temperature sensors; circuit over-temperature…
Owned by: Littelfuse, Inc.
Serial Number: 88788867

TDOT

TDOT

Filed: February 7, 2020
Thermal sensing device for use in electronics and circuit protection devices; temperature sensors; circuit over-temperature…
Owned by: Littelfuse, Inc.
Serial Number: 88788892

TTAPE

TTAPE

Filed: July 27, 2023
Thermal sensing device for use in electronics and circuit protection devices; temperature sensors; circuit over-temperature…
Owned by: Littelfuse, Inc.
Serial Number: 98104924

TDOT

TDOT

Filed: July 27, 2023
Thermal sensing device for use in electronics and circuit protection devices; temperature sensors; circuit over-temperature…
Owned by: Littelfuse, Inc.
Serial Number: 98104937