Who owns the FSF trademark?

The FSF trademark is owned by SHENZHEN QILI AUDIO APPLICATION CO., LTD..

What class is the FSF trademark registered in?

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

What is the serial number for FSF?

The USPTO serial number for FSF is 99589176.

What is the registration number for FSF?

FSF is registered under USPTO registration number 8377100.

FSF

USPTO Trademark Record

REGISTERED

FSF

SN 99589176·Reg 8377100·Filed Jan 12, 2026

Owner SHENZHEN QILI AUDIO APPLICATION 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.

FSF (Serial No. 99589176), Registration No. 8377100, is a registered US trademark filed on Jan 12, 2026 by SHENZHEN QILI AUDIO APPLICATION CO., LTD.. This trademark covers Class 009 (Electronics, software & scientific instruments).

early section 8: August 04, 2032

Mark Intelligence

FSF (Reg. #8377100) is a registered US trademark that has been protecting its owner, SHENZHEN QILI AUDIO APPLICATION CO., LTD., since 2026. 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

Jan 12, 2026

SERIAL

99589176

REG#

8377100

REGISTERED

Aug 04, 2026

Owner

Applicant

SHENZHEN QILI AUDIO APPLICATION CO., LTD.

Entity

Not Provided

Address

Room 1301, Songri Dingsheng Building, No. 9996, Shennan Avenue, Maling Community, Yuehai Street, Nanshan District,, Shenzhen City,, 518000

Country

Attorney

NameLee Xu

Law firm

Lee Xu Xu Law Offices P.C.

Address

136-18 39th Ave, Suite 1003, Flushing, NY 11354, United States

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Filing Information

StatusREGISTERED

Filing DateJan 12, 2026

Serial Number99589176

Registration No.8377100

Registration DateAug 04, 2026

Status DateAug 04, 2026

Published for OppositionJun 16, 2026

Mark TypeDesign with words

Status DescriptionLive and registered

Filing Signals

FILED

2026

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

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

Status History

11 events

REGISTERED-PRINCIPAL REGISTER

Aug 04, 2026

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Aug 04, 2026

NOTICE OF REGISTRATION CONFIRMATION EMAILED

PUBLISHED FOR OPPOSITION

Jun 16, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jun 16, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jun 10, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

May 19, 2026

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

May 09, 2026

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Apr 30, 2026

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NOTICE OF DESIGN SEARCH CODE E-MAILED

Apr 30, 2026

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION ENTERED

Jan 12, 2026

NEW APPLICATION ENTERED

APPLICATION FILING RECEIPT MAILED

Jan 12, 2026

APPLICATION FILING RECEIPT MAILED

FSF

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