Who owns the DAOKEY trademark?

The DAOKEY trademark is owned by Lin, Liyu.

What class is the DAOKEY trademark registered in?

The DAOKEY trademark is registered in Class 011 (Lighting, heating, cooling & sanitary apparatus).

What is the serial number for DAOKEY?

The USPTO serial number for DAOKEY is 88652394.

What is the registration number for DAOKEY?

DAOKEY is registered under USPTO registration number 6052978.

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Updated Sep 19, 2026·16 searches this week

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DAO

USPTO Trademark Record

REGISTERED

DAOKEY

SN 88652394·Reg 6052978·Filed Oct 12, 2019

Owner Lin, Liyu

Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes.

DAOKEY (Serial No. 88652394), Registration No. 6052978, is a registered US trademark filed on Oct 12, 2019 by Lin, Liyu. This trademark covers Class 011 (Lighting, heating, cooling & sanitary apparatus).

Section 8/9 declaration window: May 13, 2030

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Mark Intelligence

DAOKEY (Reg. #6052978) is a registered US trademark that has been protecting its owner, Lin, Liyu, since 2019. The mark covers Class 011 (Lighting, heating, cooling & sanitary apparatus). Goods and services include Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply.... The mark faced 1 opposition proceeding during prosecution.

FILED

Oct 12, 2019

SERIAL

88652394

REG#

6052978

REGISTERED

May 12, 2020

Filing Information

StatusREGISTERED

Filing DateOct 12, 2019

Serial Number88652394

Registration No.6052978

Registration DateMay 12, 2020

Status DateApr 30, 2026

Published for OppositionFeb 25, 2020

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application CurrentlySection 8 AcceptedTrademark

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 011Lighting, heating, cooling & sanitary apparatus

US codes: 013, 021, 023, 031, 034

First use anywhere: Sep 26, 2017

First use in commerce: Sep 26, 2017

Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes.

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

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Status History

18 events

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

Jul 31, 2026

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jul 31, 2026

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

Jul 31, 2026

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jul 31, 2026

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Jul 31, 2026

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Apr 30, 2026

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

REGISTERED - SEC. 8 (6-YR) ACCEPTED

Apr 30, 2026

REGISTERED - SEC. 8 (6-YR) ACCEPTED

NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED

Apr 30, 2026

NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED

TEAS SECTION 8 RECEIVED

Dec 15, 2025

TEAS SECTION 8 RECEIVED

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

May 12, 2025

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

REGISTERED-PRINCIPAL REGISTER

May 12, 2020

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Feb 25, 2020

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Feb 25, 2020

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Feb 05, 2020

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jan 21, 2020

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

Jan 17, 2020

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Oct 17, 2019

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Oct 16, 2019

NEW APPLICATION ENTERED

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