Who owns the SIGMA trademark?

The SIGMA trademark is owned by Sigma Computing, Inc..

What class is the SIGMA trademark registered in?

The SIGMA trademark is registered in Class 042 (Scientific, technology & SaaS services).

What is the serial number for SIGMA?

The USPTO serial number for SIGMA is 99293956.

What is the registration number for SIGMA?

SIGMA is registered under USPTO registration number 8228215.

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Home Search: SIGMASIGMA #99293956

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Updated Oct 9, 2026·8 searches this week

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SIG

USPTO Trademark Record

REGISTERED

SIGMA

SN 99293956·Reg 8228215·Filed Jul 21, 2025

Owner Sigma Computing, Inc.

Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.

SIGMA (Serial No. 99293956), Registration No. 8228215, is a registered US trademark filed on Jul 21, 2025 by Sigma Computing, Inc.. This trademark covers Class 042 (Scientific, technology & SaaS services).

early section 8: April 28, 2032

Mark Intelligence

SIGMA (Reg. #8228215) is a registered US trademark that has been protecting its owner, Sigma Computing, Inc., since 2025. The mark covers Class 042 (Scientific, technology & SaaS services). Goods and services include Scientific and technological services and research and design relating thereto; industrial analysis, industrial research.... The mark faced 1 opposition proceeding during prosecution.

FILED

Jul 21, 2025

SERIAL

99293956

REG#

8228215

REGISTERED

Apr 28, 2026

Filing Information

StatusREGISTERED

Filing DateJul 21, 2025

Serial Number99293956

Registration No.8228215

Registration DateApr 28, 2026

Status DateApr 28, 2026

Published for OppositionJan 27, 2026

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application Currently

International Filings

Madrid Protocol1 filings

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

1907557

480Jan 29, 2026

Source: USPTO Madrid International Filing Requests

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: Jan 31, 2025

First use in commerce: Jan 31, 2025

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

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Status History

26 events

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Apr 30, 2026

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

REGISTERED-PRINCIPAL REGISTER

Apr 28, 2026

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Apr 28, 2026

NOTICE OF REGISTRATION CONFIRMATION EMAILED

EXTENSION OF TIME TO OPPOSE PROCESS - TERMINATED

Apr 08, 2026

EXTENSION OF TIME TO OPPOSE PROCESS - TERMINATED

EXTENSION OF TIME TO OPPOSE RECEIVED

Feb 20, 2026

EXTENSION OF TIME TO OPPOSE RECEIVED

PUBLISHED FOR OPPOSITION

Jan 27, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jan 27, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jan 21, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jan 06, 2026

APPROVED FOR PUB - PRINCIPAL REGISTER

FINAL REFUSAL WRITTEN

Jan 05, 2026

FINAL REFUSAL WRITTEN

FINAL REFUSAL E-MAILED

Jan 05, 2026

FINAL REFUSAL E-MAILED

NOTIFICATION OF FINAL REFUSAL EMAILED

Jan 05, 2026

NOTIFICATION OF FINAL REFUSAL EMAILED

TEAS REQUEST FOR RECONSIDERATION RECEIVED

Jan 05, 2026

TEAS REQUEST FOR RECONSIDERATION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Jan 05, 2026

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Jan 05, 2026

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Dec 22, 2025

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Dec 22, 2025

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Dec 22, 2025

TEAS/EMAIL CORRESPONDENCE ENTERED

ASSIGNED TO EXAMINER

Dec 15, 2025

ASSIGNED TO EXAMINER

NON-FINAL ACTION WRITTEN

Dec 15, 2025

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Dec 15, 2025

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Dec 15, 2025

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Dec 08, 2025

ASSIGNED TO EXAMINER

NEW APPLICATION ENTERED

Jul 21, 2025

NEW APPLICATION ENTERED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jul 21, 2025

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

APPLICATION FILING RECEIPT MAILED

Jul 21, 2025

APPLICATION FILING RECEIPT MAILED

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