Who owns the S-FLOW trademark?

The S-FLOW trademark is owned by STSK9 USA LLC.

What class is the S-FLOW trademark registered in?

The S-FLOW trademark is registered in Class 041 (Education & entertainment services).

What is the serial number for S-FLOW?

The USPTO serial number for S-FLOW is 99663535.

What is the registration number for S-FLOW?

S-FLOW is registered under USPTO registration number 8325493.

Sealvo

Home Search: S-FLOWS-FLOW #99663535

Back

Updated Oct 7, 2026·40 searches this week

View on USPTO TSDR Find similar marks

SFL

USPTO Trademark Record

REGISTERED

S-FLOW

SN 99663535·Reg 8325493·Filed Feb 21, 2026

Owner STSK9 USA LLC

Education; providing of training; entertainment; sporting and cultural activities.

S-FLOW (Serial No. 99663535), Registration No. 8325493, is a registered US trademark filed on Feb 21, 2026 by STSK9 USA LLC. This trademark covers Class 041 (Education & entertainment services).

early section 8: June 30, 2032

Mark Intelligence

S-FLOW (Reg. #8325493) is a registered US trademark that has been protecting its owner, STSK9 USA LLC, since 2026. The mark covers Class 041 (Education & entertainment services). Goods and services include Education; providing of training; entertainment; sporting and cultural activities.. The mark faced 1 opposition proceeding during prosecution.

FILED

Feb 21, 2026

SERIAL

99663535

REG#

8325493

REGISTERED

Jun 30, 2026

Filing Information

StatusREGISTERED

Filing DateFeb 21, 2026

Serial Number99663535

Registration No.8325493

Registration DateJun 30, 2026

Status DateJun 30, 2026

Published for OppositionMay 12, 2026

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application Currently

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 041Education & entertainment services

US codes: 100, 101, 107

First use anywhere: Dec 07, 2025

First use in commerce: Dec 07, 2025

Education; providing of training; entertainment; sporting and cultural activities.

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

Run a conflict check

Search by serial number, mark name, or logo. See conflicting marks ranked by risk with clear explanations of what contributed.

Run conflict check

Status History

10 events

REGISTERED-PRINCIPAL REGISTER

Jun 30, 2026

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Jun 30, 2026

NOTICE OF REGISTRATION CONFIRMATION EMAILED

PUBLISHED FOR OPPOSITION

May 12, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

May 12, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

May 06, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Apr 16, 2026

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

Apr 14, 2026

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Feb 24, 2026

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Feb 21, 2026

NEW APPLICATION ENTERED

APPLICATION FILING RECEIPT MAILED

Feb 21, 2026

APPLICATION FILING RECEIPT MAILED

Other Marks by STSK9 USA LLC

Additional USPTO filings from the same owner.

SOU

SOURCE FOCUS

99657588

STSK9 USA LLC

REGISTERED

STR

STREET HEEL

99657594

STSK9 USA LLC

REGISTERED

STS

STSK9

99540525

STSK9 USA LLC

REGISTERED

STS

STSK9

99549375

STSK9 USA LLC

REGISTERED

Other Marks in Class 041 — Education & entertainment services

Recently filed and registered marks in the same international class.

FLO

FLOW

98808889

Bone, Malika

REGISTERED

FLO

FLOW

90060679

Christopher Temporelli

REGISTERED

S S

98828909

Sword & Shield Books LLC

REGISTERED

S+S

97083861

Greenlife Services LLC

REGISTERED

Other Marks by Charles L. Riddle

Additional USPTO filings handled by the same attorney of record.

CHO

ÉCHO FREZCO

99552263

REGISTERED

SOU

SOURCE FOCUS

99657588

REGISTERED

FIL

FILLIR

97980726

REGISTERED

MIC

MICHALL DAIMION HOME IMPROVEMENTS

99441091

REGISTERED

S-FLOW

Run a conflict check

Other Marks by STSK9 USA LLC

Other Marks in Class 041 — Education & entertainment services

Other Marks by Charles L. Riddle

Get pre-filing clearance

Search 14M+ trademarks

Resources

Company