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 75635050.

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

L.E.K. is registered under USPTO registration number 2474115.

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LEK

USPTO Trademark Record

REGISTERED

L.E.K.

SN 75635050·Reg 2474115·Filed Jan 21, 1999

Owner L.E.K. CONSULTING LLC

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

L.E.K. (Serial No. 75635050), Registration No. 2474115, is a registered US trademark filed on Jan 21, 1999 by L.E.K. CONSULTING LLC. This trademark covers Class 035 (Advertising, business management & retail services).

Section 8/9 declaration window: July 31, 2031

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Full conflict analysis for L.E.K. (SN 75635050) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

L.E.K. (Reg. #2474115) is a registered US trademark that has been protecting its owner, L.E.K. CONSULTING LLC, since 1999. 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

Jan 21, 1999

SERIAL

75635050

REG#

2474115

REGISTERED

Jul 31, 2001

Filing Information

StatusREGISTERED

Filing DateJan 21, 1999

Serial Number75635050

Registration No.2474115

Registration DateJul 31, 2001

Status DateApr 01, 2021

Published for OppositionMay 16, 2000

Filing Basis & Declarations

Use Application CurrentlySection 8 AcceptedSection 15 Acknowledged

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 035Advertising, business management & retail services

US codes: 100, 101, 102

First use anywhere: Feb 01, 1999

First use in commerce: Feb 01, 1999

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

33 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

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Jul 15, 2024

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Jul 15, 2024

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

Jul 15, 2024

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jul 15, 2024

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jul 15, 2024

TEAS CHANGE OF CORRESPONDENCE RECEIVED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Apr 01, 2021

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

Apr 01, 2021

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Apr 01, 2021

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

Apr 01, 2021

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

TEAS SECTION 8 & 9 RECEIVED

Dec 18, 2020

TEAS SECTION 8 & 9 RECEIVED

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

Mar 26, 2011

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Mar 26, 2011

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

PAPER RECEIVED

Mar 23, 2011

PAPER RECEIVED

REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED

Mar 23, 2011

REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED

CASE FILE IN TICRS

Feb 12, 2007

CASE FILE IN TICRS

REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.

Feb 03, 2007

REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.

ASSIGNED TO PARALEGAL

Dec 20, 2006

ASSIGNED TO PARALEGAL

PAPER RECEIVED

Oct 19, 2006

PAPER RECEIVED

REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED

Oct 19, 2006

REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED

REGISTERED-PRINCIPAL REGISTER

Jul 31, 2001

REGISTERED-PRINCIPAL REGISTER

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

Feb 26, 2001

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

STATEMENT OF USE PROCESSING COMPLETE

Feb 03, 2001

STATEMENT OF USE PROCESSING COMPLETE

USE AMENDMENT FILED

Dec 06, 2000

USE AMENDMENT FILED

NOA MAILED - SOU REQUIRED FROM APPLICANT

Aug 08, 2000

NOA MAILED - SOU REQUIRED FROM APPLICANT

PUBLISHED FOR OPPOSITION

May 16, 2000

PUBLISHED FOR OPPOSITION

APPROVED FOR PUB - PRINCIPAL REGISTER

Mar 02, 2000

APPROVED FOR PUB - PRINCIPAL REGISTER

CORRESPONDENCE RECEIVED IN LAW OFFICE

Jan 07, 2000

CORRESPONDENCE RECEIVED IN LAW OFFICE

NON-FINAL ACTION MAILED

Jul 19, 1999

NON-FINAL ACTION MAILED

ASSIGNED TO EXAMINER

Jul 16, 1999

ASSIGNED TO EXAMINER

Other Marks by L.E.K. CONSULTING LLC

Additional USPTO filings from the same owner.

EDG

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