Who owns the AB trademark?

The AB trademark is owned by BIOGRAPH.

What class is the AB trademark registered in?

The AB trademark is registered in Class 041 (Education & entertainment services).

What is the serial number for AB?

The USPTO serial number for AB is 87893649.

What is the registration number for AB?

AB is registered under USPTO registration number 5627186.

Sealvo

Home Search: ABAB #87893649

Back

Updated Sep 18, 2026·10 searches this week

View on USPTO TSDR Find similar marks

USPTO Trademark Record

REGISTERED

AB

SN 87893649·Reg 5627186·Filed Apr 25, 2018

Owner BIOGRAPH

Education; providing of training; entertainment; sporting and cultural activities.

AB (Serial No. 87893649), Registration No. 5627186, is a registered US trademark filed on Apr 25, 2018 by BIOGRAPH. This trademark covers Class 041 (Education & entertainment services).

Section 8/9 declaration window: December 11, 2028

Conflict Analysis

Full conflict analysis for AB (SN 87893649) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

AB (Reg. #5627186) is a registered US trademark that has been protecting its owner, BIOGRAPH, since 2018. The mark covers Class 041 (Education & entertainment services). Goods and services include Education; providing of training; entertainment; sporting and cultural activities.. The mark faced 1 opposition proceeding during prosecution.

FILED

Apr 25, 2018

SERIAL

87893649

REG#

5627186

REGISTERED

Dec 11, 2018

Filing Information

StatusREGISTERED

Filing DateApr 25, 2018

Serial Number87893649

Registration No.5627186

Registration DateDec 11, 2018

Status DateOct 03, 2025

Published for OppositionSep 25, 2018

Filing Basis & Declarations

Filed as Use ApplicationUse Application CurrentlySection 8 Accepted

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 041Education & entertainment services

US codes: 100, 101, 107

First use anywhere: Feb 01, 1908

First use in commerce: Mar 13, 1908

Education; providing of training; entertainment; sporting and cultural activities.

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

Run a conflict check

Search by serial number, mark name, or logo. See conflicting marks ranked by risk with clear explanations of what contributed.

Run conflict check

Status History

15 events

NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED

Oct 04, 2025

NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED

REGISTERED - SEC. 8 (6-YR) ACCEPTED

Oct 03, 2025

REGISTERED - SEC. 8 (6-YR) ACCEPTED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Oct 03, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

TEAS SECTION 8 RECEIVED

Jun 11, 2025

TEAS SECTION 8 RECEIVED

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

Dec 11, 2023

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

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Jan 16, 2019

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

REGISTERED-PRINCIPAL REGISTER

Dec 11, 2018

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Sep 25, 2018

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Sep 25, 2018

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Sep 05, 2018

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Aug 23, 2018

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

Aug 15, 2018

ASSIGNED TO EXAMINER

NOTICE OF DESIGN SEARCH CODE E-MAILED

May 08, 2018

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

May 05, 2018

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Apr 28, 2018

NEW APPLICATION ENTERED

Other Marks by BIOGRAPH

Additional USPTO filings from the same owner.

BIO

BIOGRAPH COMPANY

88175977

BIOGRAPH

ABANDONED

BIO

BIOGRAPH

88162726

BIOGRAPH

ABANDONED

Other Marks in Class 041 — Education & entertainment services

Recently filed and registered marks in the same international class.

86519914

American Bankers Association

REGISTERED

98194066

Ermann Associates, LLC

REGISTERED

97603941

Albee Baby Carriage Co., Inc.

REGISTERED

87215853

ASHLEY DIANA BLACK INTERNATIONAL HOLDINGS, LLC

REGISTERED

Other Marks by Francis John Ciaramella, Esquire

Additional USPTO filings handled by the same attorney of record.

5MI

5 MILLAS

90046519

REGISTERED

WOO

WOODWELL

88735587

REGISTERED

TOU

#TOURTRUCKTUESDAY

88426346

REGISTERED

EAS

EASY PEASY SCIENCE FAIR

86607389

REGISTERED

AB

Run a conflict check

Other Marks by BIOGRAPH

Other Marks in Class 041 — Education & entertainment services

Other Marks by Francis John Ciaramella, Esquire

Get pre-filing clearance

Search 15M+ trademarks

Resources

Company