Who owns the K SIGMA trademark?

The K SIGMA trademark is owned by Knorr-Bremse AG.

What is the serial number for K SIGMA?

The USPTO serial number for K SIGMA is 97542637.

What is the registration number for K SIGMA?

K SIGMA is registered under USPTO registration number 7088646.

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Home Search: K SIGMAK SIGMA #97542637

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Updated Oct 7, 2026·42 searches this week

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KSI

USPTO Trademark Record

REGISTERED

K SIGMA

Q: What class is the K SIGMA trademark registered in?

The K SIGMA trademark is registered in Class 037 (Construction, installation & repair services), Class 040 (Treatment & processing of materials).

SN 97542637·Reg 7088646·Filed Aug 10, 2022

Owner Knorr-Bremse AG

Construction services; installation and repair services; mining extraction, oil and gas drilling.; Treatment of materials; recycling of waste and trash; air purification and treatment of water; printing services; food and drink preservation.

K SIGMA (Serial No. 97542637), Registration No. 7088646, is a registered US trademark filed on Aug 10, 2022 by Knorr-Bremse AG. This trademark covers Class 037 (Construction, installation & repair services), Class 040 (Treatment & processing of materials).

early section 8: June 20, 2029

Mark Intelligence

K SIGMA (Reg. #7088646) is a registered US trademark that has been protecting its owner, Knorr-Bremse AG, since 2022. The mark covers Class 037 (Construction, installation & repair services) and Class 040 (Treatment & processing of materials) respectively. Goods and services include Construction services; installation and repair services; mining extraction, oil and gas drilling.; Treatment of material.... The mark faced 1 opposition proceeding during prosecution.

FILED

Aug 10, 2022

SERIAL

97542637

REG#

7088646

REGISTERED

Jun 20, 2023

Filing Information

StatusREGISTERED

Filing DateAug 10, 2022

Serial Number97542637

Registration No.7088646

Registration DateJun 20, 2023

Status DateJun 20, 2023

Published for OppositionNov 15, 2022

Filing Basis & Declarations

Use Application Currently

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 037Construction, installation & repair services

US codes: 100, 103, 106

First use anywhere: Apr 15, 2023

First use in commerce: Apr 15, 2023

Construction services; installation and repair services; mining extraction, oil and gas drilling.

Class 040Treatment & processing of materials

US codes: 100, 103, 106

First use anywhere: Apr 15, 2023

First use in commerce: Apr 15, 2023

Treatment of materials; recycling of waste and trash; air purification and treatment of water; printing services; food and drink preservation.

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

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Status History

17 events

REGISTERED-PRINCIPAL REGISTER

Jun 20, 2023

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Jun 20, 2023

NOTICE OF REGISTRATION CONFIRMATION EMAILED

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

May 16, 2023

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

May 15, 2023

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

STATEMENT OF USE PROCESSING COMPLETE

May 05, 2023

STATEMENT OF USE PROCESSING COMPLETE

CASE ASSIGNED TO INTENT TO USE PARALEGAL

May 03, 2023

CASE ASSIGNED TO INTENT TO USE PARALEGAL

TEAS STATEMENT OF USE RECEIVED

Apr 15, 2023

TEAS STATEMENT OF USE RECEIVED

USE AMENDMENT FILED

Apr 15, 2023

USE AMENDMENT FILED

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Jan 10, 2023

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

PUBLISHED FOR OPPOSITION

Nov 15, 2022

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Nov 15, 2022

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Oct 26, 2022

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

ASSIGNED TO EXAMINER

Oct 13, 2022

ASSIGNED TO EXAMINER

APPROVED FOR PUB - PRINCIPAL REGISTER

Oct 13, 2022

APPROVED FOR PUB - PRINCIPAL REGISTER

NOTICE OF DESIGN SEARCH CODE E-MAILED

Aug 31, 2022

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Aug 30, 2022

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Aug 13, 2022

NEW APPLICATION ENTERED

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