Who owns the QB trademark?

The QB trademark is owned by Quantitative Brokers, LLC.

What class is the QB trademark registered in?

The QB trademark is registered in Class 042 (Scientific, technology & SaaS services).

What is the serial number for QB?

The USPTO serial number for QB is 88907707.

What is the registration number for QB?

QB is registered under USPTO registration number 6215408.

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Updated Sep 17, 2026·17 searches this week

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USPTO Trademark Record

REGISTERED

QB

SN 88907707·Reg 6215408·Filed May 08, 2020

Owner Quantitative Brokers, LLC

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.

QB (Serial No. 88907707), Registration No. 6215408, is a registered US trademark filed on May 08, 2020 by Quantitative Brokers, LLC. This trademark covers Class 042 (Scientific, technology & SaaS services).

Section 8/9 declaration window: December 09, 2030

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Full conflict analysis for QB (SN 88907707) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

QB (Reg. #6215408) is a registered US trademark that has been protecting its owner, Quantitative Brokers, LLC, since 2020. The mark covers Class 042 (Scientific, technology & SaaS services). Goods and services include Scientific and technological services and research and design relating thereto; industrial analysis, industrial research.... The mark faced 1 opposition proceeding during prosecution.

FILED

May 08, 2020

SERIAL

88907707

REG#

6215408

REGISTERED

Dec 08, 2020

Filing Information

StatusREGISTERED

Filing DateMay 08, 2020

Serial Number88907707

Registration No.6215408

Registration DateDec 08, 2020

Status DateMay 30, 2026

Published for OppositionSep 22, 2020

Filing Basis & Declarations

Filed as Use ApplicationUse Application CurrentlySection 8 Accepted

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: Aug 31, 2017

First use in commerce: Aug 31, 2017

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

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Status History

20 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

May 30, 2026

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

REGISTERED - SEC. 8 (6-YR) ACCEPTED

May 30, 2026

REGISTERED - SEC. 8 (6-YR) ACCEPTED

NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED

May 30, 2026

NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED

TEAS SECTION 8 RECEIVED

Jan 23, 2026

TEAS SECTION 8 RECEIVED

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

Dec 08, 2025

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

REGISTERED-PRINCIPAL REGISTER

Dec 08, 2020

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Sep 22, 2020

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Sep 22, 2020

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Sep 02, 2020

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Aug 17, 2020

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Aug 14, 2020

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Aug 14, 2020

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Aug 14, 2020

TEAS/EMAIL CORRESPONDENCE ENTERED

NON-FINAL ACTION WRITTEN

Aug 05, 2020

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Aug 05, 2020

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Aug 05, 2020

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Aug 04, 2020

ASSIGNED TO EXAMINER

NOTICE OF DESIGN SEARCH CODE E-MAILED

May 22, 2020

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

May 21, 2020

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

May 12, 2020

NEW APPLICATION ENTERED

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