Who owns the SI trademark?

The SI trademark is owned by SI Solutions, LLC.

What class is the SI trademark registered in?

The SI trademark is registered in Class 042 (Scientific, technology & SaaS services).

What is the serial number for SI?

The USPTO serial number for SI is 99297208.

What is the registration number for SI?

SI is registered under USPTO registration number 8202009.

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Home Search: SISI #99297208

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Updated Sep 16, 2026·32 searches this week

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USPTO Trademark Record

REGISTERED

SI

SN 99297208·Reg 8202009·Filed Jul 22, 2025

Owner SI Solutions, LLC

Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.

SI (Serial No. 99297208), Registration No. 8202009, is a registered US trademark filed on Jul 22, 2025 by SI Solutions, LLC. This trademark covers Class 042 (Scientific, technology & SaaS services).

early section 8: April 07, 2032

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Full conflict analysis for SI (SN 99297208) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

SI (Reg. #8202009) is a registered US trademark that has been protecting its owner, SI Solutions, LLC, since 2025. The mark covers Class 042 (Scientific, technology & SaaS services). Goods and services include Scientific and technological services and research and design relating thereto; industrial analysis, industrial research.... The mark faced 1 opposition proceeding during prosecution.

FILED

Jul 22, 2025

SERIAL

99297208

REG#

8202009

REGISTERED

Apr 07, 2026

Filing Information

StatusREGISTERED

Filing DateJul 22, 2025

Serial Number99297208

Registration No.8202009

Registration DateApr 07, 2026

Status DateApr 07, 2026

Published for OppositionFeb 17, 2026

Filing Basis & Declarations

Filed as Use ApplicationUse Application Currently

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: Feb 28, 2023

First use in commerce: Feb 28, 2023

This description is as filed with the USPTO and defines the scope of trademark protection.

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Status History

18 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Aug 10, 2026

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

TEAS SECTION 7 REQUEST RECEIVED

May 08, 2026

TEAS SECTION 7 REQUEST RECEIVED

REGISTERED-PRINCIPAL REGISTER

Apr 07, 2026

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Apr 07, 2026

NOTICE OF REGISTRATION CONFIRMATION EMAILED

PUBLISHED FOR OPPOSITION

Feb 17, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Feb 17, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Feb 11, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jan 21, 2026

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Jan 19, 2026

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Jan 19, 2026

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Jan 19, 2026

TEAS/EMAIL CORRESPONDENCE ENTERED

NON-FINAL ACTION WRITTEN

Dec 10, 2025

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Dec 10, 2025

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Dec 10, 2025

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Dec 09, 2025

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Nov 30, 2025

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Jul 22, 2025

NEW APPLICATION ENTERED

APPLICATION FILING RECEIPT MAILED

Jul 22, 2025

APPLICATION FILING RECEIPT MAILED

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