Who owns the ZEROSUM trademark?

The ZEROSUM trademark is owned by Hae-Yang Chang.

What is the serial number for ZEROSUM?

The USPTO serial number for ZEROSUM is 99210313.

What is the registration number for ZEROSUM?

ZEROSUM is registered under USPTO registration number 8218752.

ZER

USPTO Trademark Record

REGISTERED

ZEROSUM

Q: What class is the ZEROSUM trademark registered in?

The ZEROSUM trademark is registered in Class 009 (Electronics, software & scientific instruments), Class 025 (Clothing, footwear & headgear), Class 041 (Education & entertainment services).

SN 99210313·Reg 8218752·Filed May 30, 2025

Owner Hae-Yang Chang

Scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, signalling, detecting, testing, inspecting, life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; recorded and downloadable multimedia files, computer software, blank digital or analogue recording and storage media; mechanisms for coin-operated apparatus; cash registers, calculating devices; computers and computer peripheral devices; diving suits, divers' masks, ear plugs for divers, nose clips for divers, gloves for divers, breathing apparatus for underwater swimming; fire-extinguishing apparatus.; Clothing, footwear, headwear.; Education; providing of training; entertainment; sporting and cultural activities.

ZEROSUM (Serial No. 99210313), Registration No. 8218752, is a registered US trademark filed on May 30, 2025 by Hae-Yang Chang. This trademark covers Class 009 (Electronics, software & scientific instruments), Class 025 (Clothing, footwear & headgear), Class 041 (Education & entertainment services).

early section 8: April 21, 2032

Mark Intelligence

ZEROSUM (Reg. #8218752) is a registered US trademark that has been protecting its owner, Hae-Yang Chang, since 2025. The mark covers Class 009 (Electronics, software & scientific instruments), Class 025 (Clothing, footwear & headgear) and Class 041 (Education & entertainment services) respectively. Goods and services include Scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, s.... The mark faced 1 opposition proceeding during prosecution.

FILED

May 30, 2025

SERIAL

99210313

REG#

8218752

REGISTERED

Apr 21, 2026

Owner

Applicant

Hae-Yang Chang

Entity

Individual

Address

4016 Grant Street, Hollywood, FL, 33021

Country

Attorney

Law firm

Hae-Yang Chang

Address

4016 Grant Street, Hollywood, FL 33021, United States

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Filing Information

StatusREGISTERED

Filing DateMay 30, 2025

Serial Number99210313

Registration No.8218752

Registration DateApr 21, 2026

Status DateApr 21, 2026

Published for OppositionMar 03, 2026

Mark TypeStandard characters

Status DescriptionLive and registered

Filing Signals

FILED

2025

YEARS AGO

CLASSES

MADRID FILINGS

—

Opposed 1× during prosecution

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Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 009Electronics, software & scientific instruments

US codes: 021, 023, 026, 036, 038

First use anywhere: Apr 24, 2020

First use in commerce: Apr 24, 2020

Class 025Clothing, footwear & headgear

US codes: 022, 039

First use anywhere: Apr 24, 2020

First use in commerce: Apr 24, 2020

Clothing, footwear, headwear.

Class 041Education & entertainment services

US codes: 100, 101, 107

First use anywhere: Apr 24, 2020

First use in commerce: Apr 24, 2020

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

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

Status History

22 events

REGISTERED-PRINCIPAL REGISTER

Apr 21, 2026

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Apr 21, 2026

NOTICE OF REGISTRATION CONFIRMATION EMAILED

PUBLISHED FOR OPPOSITION

Mar 03, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Mar 03, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Feb 25, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Feb 05, 2026

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS REQUEST FOR RECONSIDERATION RECEIVED

Feb 03, 2026

TEAS REQUEST FOR RECONSIDERATION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Feb 03, 2026

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Feb 03, 2026

TEAS/EMAIL CORRESPONDENCE ENTERED

FINAL REFUSAL WRITTEN

Dec 03, 2025

FINAL REFUSAL WRITTEN

FINAL REFUSAL E-MAILED

Dec 03, 2025

FINAL REFUSAL E-MAILED

NOTIFICATION OF FINAL REFUSAL EMAILED

Dec 03, 2025

NOTIFICATION OF FINAL REFUSAL EMAILED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Dec 02, 2025

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Dec 02, 2025

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Dec 02, 2025

TEAS/EMAIL CORRESPONDENCE ENTERED

ASSIGNED TO EXAMINER

Oct 18, 2025

ASSIGNED TO EXAMINER

NON-FINAL ACTION WRITTEN

Oct 18, 2025

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Oct 18, 2025

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Oct 18, 2025

NOTIFICATION OF NON-FINAL ACTION E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Oct 07, 2025

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

May 30, 2025

NEW APPLICATION ENTERED

APPLICATION FILING RECEIPT MAILED

May 30, 2025

APPLICATION FILING RECEIPT MAILED

ZEROSUM

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