Who owns the L.E.K. trademark?

The L.E.K. trademark is owned by L.E.K. Consulting LLC.

What class is the L.E.K. trademark registered in?

The L.E.K. trademark is registered in Class 035 (Advertising, business management & retail services).

What is the serial number for L.E.K.?

The USPTO serial number for L.E.K. is 99517747.

What is the registration number for L.E.K.?

L.E.K. is registered under USPTO registration number 0.

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Home Search: L.E.K.L.E.K. #99517747

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Updated Sep 25, 2026·40 searches this week

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LEK

USPTO Trademark Record

PENDING

L.E.K.

SN 99517747·Reg 0·Filed Nov 26, 2025

Owner L.E.K. Consulting LLC

Advertising; business management, organization and administration; office functions.

L.E.K. (Serial No. 99517747), Registration No. 0, is a pending US trademark filed on Nov 26, 2025 by L.E.K. Consulting LLC. This trademark covers Class 035 (Advertising, business management & retail services).

Statement of Use due: January 07, 2027104 days remaining

Conflict Analysis

Full conflict analysis for L.E.K. (SN 99517747) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

L.E.K. (Reg. #0) is a pending US trademark that was filed in 2025 and is currently under USPTO examination. The mark covers Class 035 (Advertising, business management & retail services). Goods and services include Advertising; business management, organization and administration; office functions.. The mark faced 1 opposition proceeding during prosecution.

FILED

Nov 26, 2025

SERIAL

99517747

REG#

REGISTERED

Dec 31, 1969

Filing Information

StatusPENDING

Filing DateNov 26, 2025

Serial Number99517747

Registration No.0

Registration DateDec 31, 1969

Status DateJul 07, 2026

Published for OppositionMay 12, 2026

Filing Basis & Declarations

Standard Characters Claimed

International Filings

Madrid Protocol1 filings

This mark has 1 Madrid Protocol filing on record with the USPTO.

1918806

480Apr 10, 2026

Source: USPTO Madrid International Filing Requests

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 035Advertising, business management & retail services

US codes: 100, 101, 102

Advertising; business management, organization and administration; office functions.

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

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Status History

13 events

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

Aug 07, 2026

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Aug 07, 2026

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Aug 07, 2026

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Aug 07, 2026

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Jul 07, 2026

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

PUBLISHED FOR OPPOSITION

May 12, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

May 12, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

May 06, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Apr 10, 2026

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

Mar 31, 2026

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Mar 25, 2026

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Nov 26, 2025

NEW APPLICATION ENTERED

APPLICATION FILING RECEIPT MAILED

Nov 26, 2025

APPLICATION FILING RECEIPT MAILED

Other Marks by L.E.K. Consulting LLC

Additional USPTO filings from the same owner.

EDG

EDGE STRATEGY

86334430

L.E.K. Consulting LLC

REGISTERED

LEK

L E K

97261220

L.E.K. Consulting LLC

REGISTERED

LEK

L E K

97263761

L.E.K. Consulting LLC

REGISTERED

LEK

L.E.K. CONSULTING

75627194

L.E.K. CONSULTING LLC

REGISTERED

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