Who owns the BIG SISTER AI trademark?

The BIG SISTER AI trademark is owned by BIG SISTER AI COMPANY.

What is the serial number for BIG SISTER AI?

The USPTO serial number for BIG SISTER AI is 99105372.

What is the registration number for BIG SISTER AI?

BIG SISTER AI is registered under USPTO registration number 0.

BIG

USPTO Trademark Record

PENDING

BIG SISTER AI

Q: What class is the BIG SISTER AI trademark registered in?

The BIG SISTER AI trademark is registered in Class 009 (Electronics, software & scientific instruments), Class 042 (Scientific, technology & SaaS services).

SN 99105372·Reg 0·Filed Mar 26, 2025

Owner BIG SISTER AI COMPANY

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.; Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.

BIG SISTER AI (Serial No. 99105372), Registration No. 0, is a pending US trademark filed on Mar 26, 2025 by BIG SISTER AI COMPANY. This trademark covers Class 009 (Electronics, software & scientific instruments), Class 042 (Scientific, technology & SaaS services).

Statement of Use due: January 06, 202798 days remaining

Mark Intelligence

BIG SISTER AI (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) and Class 042 (Scientific, technology & SaaS 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

Mar 26, 2025

SERIAL

99105372

REG#

REGISTERED

Dec 31, 1969

Owner

Applicant

BIG SISTER AI COMPANY

Entity

Corporation

State

Address

701 Brazos St., Austin, TX, 78701

Country

Attorney

NameBrandon P. Leahy

Law firm

Brandon P. Leahy Wilson Sonsini Goodrich & Rosati

Docket

70474-TM1001

Address

650 Page Mill Road, Palo Alto, CA 94304-1050, United States

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Filing Information

StatusPENDING

Filing DateMar 26, 2025

Serial Number99105372

Registration No.0

Registration DateDec 31, 1969

Status DateJul 02, 2026

Published for OppositionNov 11, 2025

Mark TypeStandard characters

Attorney Docket70474-TM1001

Status DescriptionLive and pending, first extension granted

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

Class 042Scientific, technology & SaaS services

US codes: 100, 101

Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.

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

Status History

17 events

SOU EXTENSION 1 GRANTED

Jul 02, 2026

SOU EXTENSION 1 GRANTED

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

Jul 02, 2026

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

SOU TEAS EXTENSION RECEIVED

Jul 01, 2026

SOU TEAS EXTENSION RECEIVED

SOU EXTENSION 1 FILED

Jul 01, 2026

SOU EXTENSION 1 FILED

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Jan 06, 2026

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

PUBLISHED FOR OPPOSITION

Nov 11, 2025

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Nov 11, 2025

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Nov 05, 2025

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

EXAMINERS AMENDMENT -WRITTEN

Oct 08, 2025

EXAMINERS AMENDMENT -WRITTEN

EXAMINERS AMENDMENT E-MAILED

Oct 08, 2025

EXAMINERS AMENDMENT E-MAILED

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Oct 08, 2025

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

EXAMINER'S AMENDMENT ENTERED

Oct 08, 2025

EXAMINER'S AMENDMENT ENTERED

APPROVED FOR PUB - PRINCIPAL REGISTER

Oct 08, 2025

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

Oct 07, 2025

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Oct 06, 2025

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Mar 26, 2025

NEW APPLICATION ENTERED

APPLICATION FILING RECEIPT MAILED

Mar 26, 2025

APPLICATION FILING RECEIPT MAILED

BIG SISTER AI

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Other Marks by BIG SISTER AI COMPANY

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