SiFive, Inc. logo

SiFive, Inc.

16 Marks
First Filed:Apr 26, 2016Latest Filed:Nov 24, 2025Address:2625 Augustine Drive, Suite 201, Santa Clara, CA 95054, US

Portfolio Overview

Registered
4(25%)
Pending
3(19%)
Dead
9(56%)

Top Classes

Class 9
Electronics, Software & Scientific Equipment
15(94%)
Class 42
Software, IT Services & Scientific Research
2(13%)
Class 41
Education and Entertainment
1(6%)

TTAB Proceedings

Total Proceedings
4
As Plaintiff
2(50%)
As Defendant
2(50%)

Top Firms

Young Basile Hanlon & MacFar...(Apr 2019)
7
REDFIELD IP PC(Nov 2025)
7
Cooley LLP(Apr 2017)
1
LATHAM & WATKINS LLP(Apr 2021)
1

Trademark Activity Timeline(2016 – 2025)

Trademark Portfolio

16 results

(current & previous marks)

Refine by Mark/Description🔽
Filed
Registered
Last Activity
SIFIVE BIGSKY
SIFIVE BIGSKY
Trademark
Word
ITU
PENDING
Owner:
Serial:99513319
Filed:Nov 24, 2025
Classes:9
Goods & Services
Class 009: High-performance RISC-V Central Processing Units (CPUs)
SIFIVE BLUESKY
SIFIVE BLUESKY
Trademark
Word
ITU
PENDING
Owner:
Serial:99513339
Filed:Nov 24, 2025
Classes:9
Goods & Services
Class 009: High performance RISC-V Central Processing Units (CPUs)
XPU TOOLKIT
XPU TOOLKIT
Service Mark
Word
ABANDONED
Owner:
Serial:90655581
Filed:Apr 19, 2021
Classes:40
SIFIVE
SIFIVE
Trademark
Word
REGISTERED
Owner:
Serial:90268801
Filed:Oct 21, 2020
Classes:9, 35, 42
Registration:7882716
Registered:Aug 5, 2025
Goods & Services
Semiconductor chips; integrated circuits; microprocessors; microcontrollers; printed circuit boards; application-specific integrated circuits; system-on-chip devices, namely, microprocessors, microcontrollers, chips in the nature of multiprocessor chips, integrated circuit chips, computer chips, integrated circuits; embedded systems comprised of embedded computer hardware and embedded operating system software; electronic sensors, namely, electronic proximity sensors, electric sensors, temperature sensors, inertial sensors, light sensors, humidity sensors, pressure sensors; Internet of Things (IoT) devices, namely, electronic sensors in the nature of electronic proximity sensors, electric sensors, temperature sensors, inertial sensors, light sensors, humidity sensors, pressure sensors; electronic components and systems, namely, semiconductors, integrated circuits and microcontrollers; semiconductor intellectual property cores; microprocessors cores; downloadable computer software, namely, software for use to configure semiconductor intellectual processor cores used in microprocessors, microcontrollers, chips, integrated circuits; downloadable electronic publications, namely, technical papers, and manuals in the field of computers and electronics; Distributorship services in the field of intellectual property cores; Software-as-a service (SaaS) services featuring software used to configure semiconductor intellectual processor cores used in microprocessors, microcontrollers, chips, integrated circuits; platform as a service (PaaS) services featuring software used to configure semiconductor intellectual processors cores used in microprocessors, microcontrollers, chips, integrated circuits; design services, namely, design of microprocessors, integrated circuits, computer hardware, computer software, and electronics; product design services in the fields of microprocessors, integrated circuits, computer hardware, computer software, and electronics
E CORES
E CORES
Trademark
Word
ABANDONED
Owner:
Serial:88396264
Filed:Apr 22, 2019
Classes:9
Goods & Services
"CORES"
E SERIES
E SERIES
Trademark
Word
ABANDONED
Owner:
Serial:88396067
Filed:Apr 22, 2019
Classes:9
Goods & Services
"SERIES"
S CORES
S CORES
Trademark
Word
ABANDONED
Owner:
Serial:88396302
Filed:Apr 22, 2019
Classes:9
Goods & Services
"CORES"
S SERIES
S SERIES
Trademark
Word
ABANDONED
Owner:
Serial:88396080
Filed:Apr 22, 2019
Classes:9
Goods & Services
"SERIES"
U CORES
U CORES
Trademark
Word
ABANDONED
Owner:
Serial:88396318
Filed:Apr 22, 2019
Classes:9
Goods & Services
"CORES"
U SERIES
U SERIES
Trademark
Word
ABANDONED
Owner:
Serial:88396096
Filed:Apr 22, 2019
Classes:9
Goods & Services
"SERIES"
DESIGNSHARE
DESIGNSHARE
Trademark
Word
ABANDONED
Owner:
Serial:88369912
Filed:Apr 3, 2019
Classes:9
88274844
88274844
Trademark
Design
REGISTERED
Owner:
Serial:88274844
Filed:Jan 24, 2019
Classes:9
Registration:6206368
Registered:Nov 24, 2020
Goods & Services
Printed circuit boards; user-configurable circuit boards; semiconductor chips; integrated circuits; microprocessors; micro controllers; sensors, namely, temperature sensors, inertial sensors, light sensors, environmental pressure, humidity and temperature sensors, and analog pressure, humidity and temperature sensors; Internet of Things (IoT) devices, namely, wirelessly connected sensor nodes; downloadable computer software development tools; downloadable software for networking, operating, managing and controlling Internet of Things (IoT) devices; downloadable artificial intelligence software, namely, software for controlling robotic functions and software for sensor aggregation and actuation; downloadable electronic publications, namely, instruction manuals, user guides, installation guides, product datasheets, articles, and magazines in the fields of computers and electronics; downloadable educational software featuring games and instruction in the field of computers and electronics; downloadable educational course materials in the fields of computers and electronics
HIFIVE
HIFIVE
Trademark
Combined
ITU
PENDING
Owner:
Serial:88274812
Filed:Jan 24, 2019
Classes:9, 41, 42
Goods & Services
Educational services, namely, providing on-line non downloadable educational publications in the nature of instruction manuals, user guides, installation guides, product datasheets, articles, and magazines in the fields micro controllers, computer programming, Internet-of-Things (IoT), artificial intelligence, and electronics; educational services, namely, providing instruction to teachers and students in the fields of micro controllers, computer programming, Internet-of-Things (IoT), artificial intelligence, and electronics; Printed circuit boards; user-configurable circuit boards; semiconductor chips; integrated circuits; integrated circuits embedded with operating system software; microprocessors; micro controllers; sensors, namely, temperature sensors, inertial sensors, lights sensors, environmental humidity and pressure sensors, and analog humidity and pressure sensors; Internet of Things (IoT) devices, namely, wirelessly connected sensor nodes; downloadable computer software development tools; downloadable software for networking, operating, managing and controlling Internet of Things (IoT) devices; downloadable artificial intelligence software, namely, software for controlling robotic functions and software for sensor aggregation and actuation; downloadable electronic publications, namely, instruction manuals, user guides, installation guides, product datasheets, articles, and magazines in the fields of computers and electronics; downloadable educational course materials in the fields of computers and electronics; providing on-line non-downloadable information about computer technology in the fields micro controllers, computer programming, Internet-of-Things (IoT), artificial intelligence, and electronics
COREPLEX
COREPLEX
Trademark
Word
ABANDONED
Owner:
Serial:87416791
Filed:Apr 19, 2017
Classes:9
5
5
Trademark
Combined
REGISTERED
Owner:
Serial:87014509
Filed:Apr 26, 2016
Classes:9
Registration:5297431
Registered:Sep 26, 2017
Goods & Services
Semiconductor chips; integrated circuits; microprocessors
SIFIVE
SIFIVE
Trademark
Word
REGISTERED
Owner:
Serial:87014506
Filed:Apr 26, 2016
Classes:9
Registration:5297430
Registered:Sep 26, 2017
Goods & Services
Semiconductor chips; integrated circuits; microprocessors

Cookie Preferences

We use cookies (including Google Analytics) to improve our site and understand how visitors use it.