Who owns the SEJONG FLEX trademark?

The SEJONG FLEX trademark is owned by SEJONG FLEX CO., LTD..

What class is the SEJONG FLEX trademark registered in?

The SEJONG FLEX trademark is registered in Class 017 (Rubber, plastics & insulating materials).

What is the serial number for SEJONG FLEX?

The USPTO serial number for SEJONG FLEX is 98238029.

What is the registration number for SEJONG FLEX?

SEJONG FLEX is registered under USPTO registration number 8111617.

Sealvo

Home Search: SEJONG FLEXSEJONG FLEX #98238029

Back

Updated Oct 2, 2026·29 searches this week

View on USPTO TSDR Find similar marks

SEJ

USPTO Trademark Record

REGISTERED

SEJONG FLEX

SN 98238029·Reg 8111617·Filed Oct 24, 2023

Owner SEJONG FLEX CO., LTD.

Unprocessed and semi-processed rubber, gutta-percha, gum, asbestos, mica and substitutes for all these materials; plastics and resins in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, tubes and hoses, not of metal.

SEJONG FLEX (Serial No. 98238029), Registration No. 8111617, is a registered US trademark filed on Oct 24, 2023 by SEJONG FLEX CO., LTD.. This trademark covers Class 017 (Rubber, plastics & insulating materials).

early section 8: January 20, 2032

Conflict Analysis

Full conflict analysis for SEJONG FLEX (SN 98238029) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

SEJONG FLEX (Reg. #8111617) is a registered US trademark that has been protecting its owner, SEJONG FLEX CO., LTD., since 2023. The mark covers Class 017 (Rubber, plastics & insulating materials). Goods and services include Unprocessed and semi-processed rubber, gutta-percha, gum, asbestos, mica and substitutes for all these materials; plasti.... The mark faced 1 opposition proceeding during prosecution.

FILED

Oct 24, 2023

SERIAL

98238029

REG#

8111617

REGISTERED

Jan 20, 2026

Filing Information

StatusREGISTERED

Filing DateOct 24, 2023

Serial Number98238029

Registration No.8111617

Registration DateJan 20, 2026

Status DateJan 20, 2026

Published for OppositionNov 19, 2024

Filing Basis & Declarations

Standard Characters ClaimedUse Application CurrentlyTrademark

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 017Rubber, plastics & insulating materials

US codes: 001, 005, 012, 013, 035, 050

First use anywhere: Nov 30, 1981

First use in commerce: Dec 31, 2016

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

28 events

REGISTERED-PRINCIPAL REGISTER

Jan 20, 2026

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Jan 20, 2026

NOTICE OF REGISTRATION CONFIRMATION EMAILED

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

Dec 30, 2025

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

Dec 30, 2025

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

CASE ASSIGNED TO INTENT TO USE PARALEGAL

Dec 28, 2025

CASE ASSIGNED TO INTENT TO USE PARALEGAL

STATEMENT OF USE PROCESSING COMPLETE

Dec 28, 2025

STATEMENT OF USE PROCESSING COMPLETE

TEAS STATEMENT OF USE RECEIVED

Jun 25, 2025

TEAS STATEMENT OF USE RECEIVED

USE AMENDMENT FILED

Jun 25, 2025

USE AMENDMENT FILED

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Dec 31, 2024

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

PUBLISHED FOR OPPOSITION

Nov 19, 2024

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Nov 19, 2024

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Nov 13, 2024

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

EXAMINER'S AMENDMENT ENTERED

Oct 10, 2024

EXAMINER'S AMENDMENT ENTERED

EXAMINERS AMENDMENT E-MAILED

Oct 10, 2024

EXAMINERS AMENDMENT E-MAILED

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Oct 10, 2024

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

EXAMINERS AMENDMENT -WRITTEN

Oct 10, 2024

EXAMINERS AMENDMENT -WRITTEN

APPROVED FOR PUB - PRINCIPAL REGISTER

Oct 10, 2024

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS VOLUNTARY AMENDMENT RECEIVED

Oct 02, 2024

TEAS VOLUNTARY AMENDMENT RECEIVED

PRELIMINARY/VOLUNTARY AMENDMENT - ENTERED

Oct 02, 2024

PRELIMINARY/VOLUNTARY AMENDMENT - ENTERED

TEAS/EMAIL CORRESPONDENCE ENTERED

Sep 10, 2024

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Sep 09, 2024

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Sep 09, 2024

CORRESPONDENCE RECEIVED IN LAW OFFICE

ASSIGNED TO EXAMINER

Jun 07, 2024

ASSIGNED TO EXAMINER

NON-FINAL ACTION WRITTEN

Jun 07, 2024

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Jun 07, 2024

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Jun 07, 2024

NOTIFICATION OF NON-FINAL ACTION E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Oct 30, 2023

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Oct 27, 2023

NEW APPLICATION ENTERED

Other Marks in Class 017 — Rubber, plastics & insulating materials

Recently filed and registered marks in the same international class.

FLE

FLEX

87785714

Flex Films (USA), Inc.

REGISTERED

FLE

FLEX

87171596

Swan Products, LLC

REGISTERED

FLE

FLEX

90980514

Swift IP, LLC

REGISTERED

FLE

FLEX

90980273

Swift IP, LLC

REGISTERED

Other Marks by Kongsik Kim

Additional USPTO filings handled by the same attorney of record.

OCT

OCTAVIUS

99236801

REGISTERED

OCT

OCTAVIUS

99182679

REGISTERED

LOG

LogoMark

76512140

REGISTERED

VIN

VINH THUAN

79167064

REGISTERED

SEJONG FLEX

Run a conflict check

Other Marks in Class 017 — Rubber, plastics & insulating materials

Other Marks by Kongsik Kim

Get pre-filing clearance

Search 15M+ trademarks

Resources

Company