Who owns the STC trademark?

The STC trademark is owned by SITERWELL ELECTRONICS CO., LIMITED.

What class is the STC trademark registered in?

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

What is the serial number for STC?

The USPTO serial number for STC is 99552613.

What is the registration number for STC?

STC is registered under USPTO registration number 0.

STC

USPTO Trademark Record

PENDING

STC

SN 99552613·Reg 0·Filed Dec 17, 2025

Owner SITERWELL ELECTRONICS CO., LIMITED

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.

STC (Serial No. 99552613), Registration No. 0, is a pending US trademark filed on Dec 17, 2025 by SITERWELL ELECTRONICS CO., LIMITED. This trademark covers Class 009 (Electronics, software & scientific instruments).

Mark Intelligence

STC (Reg. #0) is a pending US trademark that was filed in 2025 and is currently under USPTO examination. 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 2 opposition proceedings during prosecution.

FILED

Dec 17, 2025

SERIAL

99552613

REG#

Owner

Applicant

SITERWELL ELECTRONICS CO., LIMITED

Entity

Not Provided

Address

No.666 Qingfeng Road,, Jiangbei District, Ningbo, Zhejiang, 315000

Country

Attorney

NamePRISCILLA LAUREN SPEER

Law firm

PRISCILLA LAUREN SPEER BAYRAMOGLU LAW OFFICES LLC

Address

1540 WEST WARM SPRINGS ROAD SUITE 100, HENDERSON, NV 89014, UNITED STATES

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Filing Information

StatusPENDING

Filing DateDec 17, 2025

Serial Number99552613

Registration No.0

Status DateJul 14, 2026

Published for OppositionMay 19, 2026

Mark TypeStandard characters

Status DescriptionLive and pending, opposition pending

Filing Signals

FILED

2025

YEARS AGO

CLASSES

MADRID FILINGS

—

Opposed 2× 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

EXTENSION OF TIME TO OPPOSE PROCESS - TERMINATED

Jul 18, 2026

EXTENSION OF TIME TO OPPOSE PROCESS - TERMINATED

OPPOSITION INSTITUTED NO. 999999

Jul 14, 2026

OPPOSITION INSTITUTED NO. 999999

EXTENSION OF TIME TO OPPOSE RECEIVED

Jun 16, 2026

EXTENSION OF TIME TO OPPOSE RECEIVED

PUBLISHED FOR OPPOSITION

May 19, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

May 19, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

May 13, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

ASSIGNED TO EXAMINER

Apr 21, 2026

ASSIGNED TO EXAMINER

APPROVED FOR PUB - PRINCIPAL REGISTER

Apr 21, 2026

APPROVED FOR PUB - PRINCIPAL REGISTER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Apr 08, 2026

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Dec 17, 2025

NEW APPLICATION ENTERED

APPLICATION FILING RECEIPT MAILED

Dec 17, 2025

APPLICATION FILING RECEIPT MAILED

STC

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Other Marks by SITERWELL ELECTRONICS CO., LIMITED

Other Marks in Class 009 — Electronics, software & scientific instruments

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