Who owns the HALCYON trademark?

The HALCYON trademark is owned by Halcyon Carbon, Inc..

What class is the HALCYON trademark registered in?

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

What is the serial number for HALCYON?

The USPTO serial number for HALCYON is 98447124.

What is the registration number for HALCYON?

HALCYON is registered under USPTO registration number 8233479.

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Updated Sep 16, 2026·38 searches this week

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USPTO Trademark Record

REGISTERED

HALCYON

SN 98447124·Reg 8233479·Filed Mar 13, 2024

Owner Halcyon Carbon, 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.

HALCYON (Serial No. 98447124), Registration No. 8233479, is a registered US trademark filed on Mar 13, 2024 by Halcyon Carbon, Inc.. This trademark covers Class 042 (Scientific, technology & SaaS services).

early section 8: April 28, 2032

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Mark Intelligence

HALCYON (Reg. #8233479) is a registered US trademark that has been protecting its owner, Halcyon Carbon, Inc., since 2024. 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

Mar 13, 2024

SERIAL

98447124

REG#

8233479

REGISTERED

Apr 28, 2026

Filing Information

StatusREGISTERED

Filing DateMar 13, 2024

Serial Number98447124

Registration No.8233479

Registration DateApr 28, 2026

Status DateApr 28, 2026

Published for OppositionJan 21, 2025

Filing Basis & Declarations

Standard Characters ClaimedUse Application Currently

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: Jan 31, 2024

First use in commerce: Mar 31, 2024

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

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Status History

26 events

REGISTERED-PRINCIPAL REGISTER

Apr 28, 2026

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Apr 28, 2026

NOTICE OF REGISTRATION CONFIRMATION EMAILED

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

Apr 06, 2026

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

Apr 06, 2026

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

STATEMENT OF USE PROCESSING COMPLETE

Apr 03, 2026

STATEMENT OF USE PROCESSING COMPLETE

TEAS STATEMENT OF USE RECEIVED

Oct 14, 2025

TEAS STATEMENT OF USE RECEIVED

USE AMENDMENT FILED

Oct 14, 2025

USE AMENDMENT FILED

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

May 13, 2025

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

EXTENSION OF TIME TO OPPOSE PROCESS - TERMINATED

Apr 04, 2025

EXTENSION OF TIME TO OPPOSE PROCESS - TERMINATED

EXTENSION OF TIME TO OPPOSE RECEIVED

Feb 21, 2025

EXTENSION OF TIME TO OPPOSE RECEIVED

PUBLISHED FOR OPPOSITION

Jan 21, 2025

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jan 21, 2025

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jan 15, 2025

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

EXAMINERS AMENDMENT -WRITTEN

Dec 23, 2024

EXAMINERS AMENDMENT -WRITTEN

EXAMINERS AMENDMENT E-MAILED

Dec 23, 2024

EXAMINERS AMENDMENT E-MAILED

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Dec 23, 2024

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

EXAMINER'S AMENDMENT ENTERED

Dec 23, 2024

EXAMINER'S AMENDMENT ENTERED

APPROVED FOR PUB - PRINCIPAL REGISTER

Dec 23, 2024

APPROVED FOR PUB - PRINCIPAL REGISTER

NON-FINAL ACTION WRITTEN

Nov 07, 2024

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Nov 07, 2024

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Nov 07, 2024

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Sep 24, 2024

ASSIGNED TO EXAMINER

TEAS VOLUNTARY AMENDMENT RECEIVED

Jul 09, 2024

TEAS VOLUNTARY AMENDMENT RECEIVED

TEAS AMENDMENT ENTERED BEFORE ATTORNEY ASSIGNED

Jul 09, 2024

TEAS AMENDMENT ENTERED BEFORE ATTORNEY ASSIGNED

NEW APPLICATION ENTERED

Mar 13, 2024

NEW APPLICATION ENTERED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Mar 13, 2024

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

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