Who owns the 3+ trademark?

The 3+ trademark is owned by Shenzhen Samduo Energy Technology Co., Ltd.

What class is the 3+ trademark registered in?

The 3+ trademark is registered in Class 009 (Electronics, software & scientific instruments).

What is the serial number for 3+?

The USPTO serial number for 3+ is 99515241.

What is the registration number for 3+?

3+ is registered under USPTO registration number 8304100.

USPTO Trademark Record

REGISTERED

3+

SN 99515241·Reg 8304100·Filed Nov 25, 2025

Owner Shenzhen Samduo Energy Technology Co., Ltd

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.

3+ (Serial No. 99515241), Registration No. 8304100, is a registered US trademark filed on Nov 25, 2025 by Shenzhen Samduo Energy Technology Co., Ltd. This trademark covers Class 009 (Electronics, software & scientific instruments).

early section 8: June 16, 2032

Mark Intelligence

3+ (Reg. #8304100) is a registered US trademark that has been protecting its owner, Shenzhen Samduo Energy Technology Co., Ltd, since 2025. The mark covers Class 009 (Electronics, software & scientific instruments). Goods and services include Scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, s.... The mark faced 1 opposition proceeding during prosecution.

FILED

Nov 25, 2025

SERIAL

99515241

REG#

8304100

REGISTERED

Jun 16, 2026

Owner

Applicant

Shenzhen Samduo Energy Technology Co., Ltd

Entity

Not Provided

Address

Floor 2, Building A2, Fenghuanggang 3rd Industrial Zone, Fenghuanggang Community, Xixiang Sub-district, Bao'an District, Shenzhen, 518100

Country

Attorney

NameZisheng Xing

Address

275 Cordova St, Apt 1204, Pasadena, CA 91101, United States

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Filing Information

StatusREGISTERED

Filing DateNov 25, 2025

Serial Number99515241

Registration No.8304100

Registration DateJun 16, 2026

Status DateJun 16, 2026

Published for OppositionApr 28, 2026

Mark TypeDesign with words

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: Nov 19, 2025

First use in commerce: Nov 19, 2025

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

Status History

11 events

REGISTERED-PRINCIPAL REGISTER

Jun 16, 2026

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Jun 16, 2026

NOTICE OF REGISTRATION CONFIRMATION EMAILED

PUBLISHED FOR OPPOSITION

Apr 28, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Apr 28, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Apr 22, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

ASSIGNED TO EXAMINER

Mar 30, 2026

ASSIGNED TO EXAMINER

APPROVED FOR PUB - PRINCIPAL REGISTER

Mar 30, 2026

APPROVED FOR PUB - PRINCIPAL REGISTER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Mar 25, 2026

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NOTICE OF DESIGN SEARCH CODE E-MAILED

Mar 25, 2026

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION ENTERED

Nov 25, 2025

NEW APPLICATION ENTERED

APPLICATION FILING RECEIPT MAILED

Nov 25, 2025

APPLICATION FILING RECEIPT MAILED

3+

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Other Marks by Shenzhen Samduo Energy Technology Co., Ltd

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