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Official data from USPTO

SK

Did you know this trademark is already registered in United States?

Before investing in name, identity, and promotion, validate collision risk and registration strategy to avoid wasting time and budget.

Active USPTO registrationType: CombinedOffice: US

Quick snapshot

SK

ST13

US500000090575959

Class

42

Filing

90575959

Registration

6903859

Risk and opportunity diagnosis

Executive reading for naming, filing, and monitoring decisions.

Attention: there is active risk

USPTO status

Active USPTO registration

Case type

Application and registration

Recorded events

31

Latest update

12/17/2025

Classification

Registered

Trademark type

Combined

Nice classes

42

Filing date

03/12/2021

Registration date

11/22/2022

Expiration date

-

Recommended action

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Next step

These are the details of the registration process. Even so, constant monitoring is what ensures peace of mind that your main asset remains protected.

Complete case details

Structured fields from the responsible authority and the official record.

Status date

11/22/2022

Last transaction

12/17/2025

Responsible office

United States Patent and Trademark Office

Status code

700

Official register

Principal Register

Drawing code

3

Owner type

03

Owner location

SEOUL, KR

Examiner

RUTLAND,BARBARA A

Law office

L10

Current location

PUBLICATION AND ISSUE SECTION

Mark description

The mark consists of the letters "SK" in red stylized font. To the top right of the "SK" is a design of wings. The inner portion of the wings is red, and the outer portion of the wings is orange. White is not claimed as a feature of the mark and only represents background or transparent areas.

Holders and representatives

Holders

SK INC.
SK HOLDINGS CO., LTD.

Representatives

Isaac M. Fine KPPB LLP

Technical classification

Nice Classes

Class 42

Vienna Codes

No Vienna codes available.

Goods and services

Class 42

Hosting the web sites of others on a computer server for a global computer network; creating and maintaining web sites for others; installation of computer software; computer system design; data conversion of computer programs and datanot physical conversion; duplication of computer programs; recovery of computer data; rental of computer software; computer software design; updating of computer software for others; maintenance of computer software; computer systems analysis; computer programming; technological consultation in the technology field of computer hardware systems; research in the field of bacteriology; pharmaceutical research services; cosmetic research; environmental research servicesdetection of contaminants in water; architectural consultation; architectural servicesconstruction drafting; design of industrial machinery; engineering servicesdesign and drafting of ships; interior decorating; graphic arts designing; automotive designmotor vehicle design; construction drafting; packaging design; dress designing; clothing design services; mechanical research; meteorological information; calibrationmeasuring; urban planning; leasing of robotsleasing of humanoid robots with artificial intelligence; physics research; quality control for others; biological research; underwater exploration; geological survey and researchsurveying of oil fields; oil-well testing; cloud seeding; weather forecasting; material testing; geological prospecting; textile testing; vehicle roadworthiness testing; land surveying; quality control services for othersproduct packing inspection; research in the field of chemistry; environmental assessment servicesconsulting services in the field of environment assessment; engineering services in the field of construction

Publications

History of USPTO decisions and trademark events.

31 publications found

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

12/12/2025

ARAA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

12/12/2025

REAP

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

12/12/2025

EWAF

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

04/22/2025

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

04/22/2025

ARAA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

04/22/2025

REAP

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

04/22/2025

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

02/26/2024

ARAA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

02/26/2024

REAP

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

02/26/2024

NRCC

NOTICE OF REGISTRATION CONFIRMATION EMAILED

11/22/2022

R.PR

REGISTERED-PRINCIPAL REGISTER

11/22/2022

NPUB

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

09/06/2022

PUBO

PUBLISHED FOR OPPOSITION

09/06/2022

NONP

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

08/17/2022

CNSA

APPROVED FOR PUB - PRINCIPAL REGISTER

08/01/2022

TEME

TEAS/EMAIL CORRESPONDENCE ENTERED

07/19/2022

CRFA

CORRESPONDENCE RECEIVED IN LAW OFFICE

07/18/2022

TROA

TEAS RESPONSE TO OFFICE ACTION RECEIVED

07/18/2022

GNRN

NOTIFICATION OF NON-FINAL ACTION E-MAILED

02/11/2022

GNRT

NON-FINAL ACTION E-MAILED

02/11/2022

CNRT

NON-FINAL ACTION WRITTEN

02/11/2022

RCCK

SUSPENSION CHECKED - TO ATTORNEY FOR ACTION

01/10/2022

ASGN

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

07/07/2021

GNS3

NOTIFICATION OF LETTER OF SUSPENSION E-MAILED

06/29/2021

GNSL

LETTER OF SUSPENSION E-MAILED

06/29/2021

CNSL

SUSPENSION LETTER WRITTEN

06/29/2021

DOCK

ASSIGNED TO EXAMINER

06/21/2021

MDSC

NOTICE OF DESIGN SEARCH CODE E-MAILED

06/15/2021

NWOS

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

06/13/2021

NWAP

NEW APPLICATION ENTERED

03/16/2021

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