Who owns the SIGMA trademark?

The SIGMA trademark is owned by MERCK KGAA.

What class is the SIGMA trademark registered in?

The SIGMA trademark is registered in Class 018 (Leather goods, bags & accessories).

What is the serial number for SIGMA?

The USPTO serial number for SIGMA is 72027241.

What is the registration number for SIGMA?

SIGMA is registered under USPTO registration number 671728.

Sealvo

Home Search: SIGMASIGMA #72027241

Back

Updated Sep 20, 2026·39 searches this week

View on USPTO TSDR Find similar marks

SIG

USPTO Trademark Record

REGISTERED

SIGMA

SN 72027241·Reg 671728·Filed Mar 29, 1957

Owner MERCK KGAA

Leather and imitations of leather; animal skins and hides; luggage and carrying bags; umbrellas and parasols; walking sticks; whips, harness and saddlery; collars, leashes and clothing for animals.

SIGMA (Serial No. 72027241), Registration No. 671728, is a registered US trademark filed on Mar 29, 1957 by MERCK KGAA. This trademark covers Class 018 (Leather goods, bags & accessories).

Section 8/9 declaration window: January 01, 2029

Conflict Analysis

Full conflict analysis for SIGMA (SN 72027241) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

SIGMA (Reg. #671728) is a registered US trademark that has been protecting its owner, MERCK KGAA, since 1957. The mark covers Class 018 (Leather goods, bags & accessories). Goods and services include Leather and imitations of leather; animal skins and hides; luggage and carrying bags; umbrellas and parasols; walking st....

FILED

Mar 29, 1957

SERIAL

72027241

REG#

671728

REGISTERED

Dec 30, 1958

Filing Information

StatusREGISTERED

Filing DateMar 29, 1957

Serial Number72027241

Registration No.671728

Registration DateDec 30, 1958

Status DateAug 13, 2018

Next RenewalJanuary 01, 2029

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application CurrentlySection 8 AcceptedSection 15 AcknowledgedTrademark

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 018Leather goods, bags & accessories

US codes: 018

First use anywhere: Nov 30, 1947

First use in commerce: Nov 30, 1947

Leather and imitations of leather; animal skins and hides; luggage and carrying bags; umbrellas and parasols; walking sticks; whips, harness and saddlery; collars, leashes and clothing for animals.

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

29 events

TEAS CHANGE OF OWNER ADDRESS RECEIVED

May 20, 2021

TEAS CHANGE OF OWNER ADDRESS RECEIVED

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

May 20, 2021

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

May 20, 2021

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

May 20, 2021

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

TEAS CHANGE OF CORRESPONDENCE RECEIVED

May 20, 2021

TEAS CHANGE OF CORRESPONDENCE RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

May 20, 2021

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Oct 28, 2020

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Aug 13, 2018

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Aug 13, 2018

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

REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)

Aug 13, 2018

REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)

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

Aug 13, 2018

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

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Aug 01, 2018

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS SECTION 8 & 9 RECEIVED

Aug 01, 2018

TEAS SECTION 8 & 9 RECEIVED

COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED

Dec 30, 2017

COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED

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

Aug 30, 2013

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Aug 30, 2013

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Aug 03, 2011

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

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

Mar 03, 2010

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Mar 03, 2010

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

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

Apr 13, 2009

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

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

Apr 13, 2009

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

ASSIGNED TO PARALEGAL

Dec 18, 2008

ASSIGNED TO PARALEGAL

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Dec 16, 2008

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Dec 16, 2008

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

TEAS SECTION 8 & 9 RECEIVED

Dec 16, 2008

TEAS SECTION 8 & 9 RECEIVED

CASE FILE IN TICRS

Aug 23, 2006

CASE FILE IN TICRS

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Dec 01, 1998

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8

Jul 31, 1998

REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8

REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)

Dec 30, 1978

REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)

Other Marks by MERCK KGAA

Additional USPTO filings from the same owner.

SYN

SYNETRA

99075697

Merck KGaA

REGISTERED

SOL

SOLUPRINT

79420835

MERCK KGaA

REGISTERED

ELO

ELOWEN

79441410

Merck KGaA

REGISTERED

SAF

SAFETYBARB

78448295

MERCK KGAA

REGISTERED

Other Marks in Class 018 — Leather goods, bags & accessories

Recently filed and registered marks in the same international class.

SIG

SIGMA

76033847

RICARDO BEVERLY HILLS, INC.

REGISTERED

SIG

SIGMA

78963145

SIGMA BRANDS NETWORK, INC.

ABANDONED

ECH

ECHO-SIGMA

97765108

Reidel Corporation

REGISTERED

SWI

SWISS SIGMA

77262497

DENG, ANDERSON

REGISTERED

Other Marks by William C. Wright

Additional USPTO filings handled by the same attorney of record.

SYN

SYNETRA

99075697

REGISTERED

SOL

SOLUPRINT

79420835

REGISTERED

ELO

ELOWEN

79441410

REGISTERED

MAN

MANUKA DNA 3000

79429594

REGISTERED

SIGMA

Run a conflict check

Other Marks by MERCK KGAA

Other Marks in Class 018 — Leather goods, bags & accessories

Other Marks by William C. Wright

Get pre-filing clearance

Search 15M+ trademarks

Resources

Company