Who owns the HT trademark?

The HT trademark is owned by Hudson Technologies, Inc..

What class is the HT trademark registered in?

The HT trademark is registered in Class 040 (Treatment & processing of materials).

What is the serial number for HT?

The USPTO serial number for HT is 98887975.

What is the registration number for HT?

HT is registered under USPTO registration number 7917821.

Sealvo

Home Search: HTHT #98887975

Back

Updated Oct 27, 2026·25 searches this week

View on USPTO TSDR Find similar marks

USPTO Trademark Record

REGISTERED

HT

SN 98887975·Reg 7917821·Filed Dec 05, 2024

Owner Hudson Technologies, Inc.

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

HT (Serial No. 98887975), Registration No. 7917821, is a registered US trademark filed on Dec 05, 2024 by Hudson Technologies, Inc.. This trademark covers Class 040 (Treatment & processing of materials).

early section 8: August 26, 2031

Mark Intelligence

HT (Reg. #7917821) is a registered US trademark that has been protecting its owner, Hudson Technologies, Inc., since 2024. The mark covers Class 040 (Treatment & processing of materials). Goods and services include Treatment of materials; recycling of waste and trash; air purification and treatment of water; printing services; food a.... The mark faced 1 opposition proceeding during prosecution.

FILED

Dec 05, 2024

SERIAL

98887975

REG#

7917821

REGISTERED

Aug 26, 2025

Filing Information

StatusREGISTERED

Filing DateDec 05, 2024

Serial Number98887975

Registration No.7917821

Registration DateAug 26, 2025

Status DateAug 26, 2025

Published for OppositionJul 08, 2025

Filing Basis & Declarations

Filed as Use ApplicationUse Application Currently

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 040Treatment & processing of materials

US codes: 100, 103, 106

First use anywhere: May 04, 2022

First use in commerce: May 04, 2022

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.

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

13 events

REGISTERED-PRINCIPAL REGISTER

Aug 26, 2025

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Aug 26, 2025

NOTICE OF REGISTRATION CONFIRMATION EMAILED

PUBLISHED FOR OPPOSITION

Jul 08, 2025

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jul 08, 2025

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jul 02, 2025

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

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

Jun 10, 2025

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jun 10, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jun 10, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jun 02, 2025

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

May 27, 2025

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

May 18, 2025

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NOTICE OF DESIGN SEARCH CODE E-MAILED

May 18, 2025

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION ENTERED

Dec 05, 2024

NEW APPLICATION ENTERED

Other Marks by Hudson Technologies, Inc.

Additional USPTO filings from the same owner.

RIR

RI REFRIGERANTS INC. A DIVISION OF HUDSON TECHNOLOGIES

99699167

HUDSON TECHNOLOGIES INC.

REGISTERED

99699203

HUDSON TECHNOLOGIES INC.

REGISTERED

ZUG

ZUGIBEAST

74682909

HUDSON TECHNOLOGIES, INC.

REGISTERED

EME

EMERALD REFRIGERANTS RECLAIMED IN THE USA

99372122

HUDSON TECHNOLOGIES INC.

REGISTERED

Other Marks in Class 040 — Treatment & processing of materials

Recently filed and registered marks in the same international class.

77482348

Highway Technologies, Inc.

ABANDONED

73570867

HARRIS TUBE

ABANDONED

PAR

PARYLENE HT

76603568

Specialty Coating Systems, Inc.

REGISTERED

FRE

FRESHQUEST HT

98148249

Halliburton Energy Services, Inc.

ABANDONED

Other Marks by Francis J. Duffin

Additional USPTO filings handled by the same attorney of record.

PEP

PEPTUAL

99066194

REGISTERED

LET

LET'S LATHER

98292140

REGISTERED

LET

LET'S LATHER NATURALLY

98292145

REGISTERED

IMP

IMPROVEMINT FINANCIAL

97981643

REGISTERED

HT

Run a conflict check

Other Marks by Hudson Technologies, Inc.

Other Marks in Class 040 — Treatment & processing of materials

Other Marks by Francis J. Duffin

Get pre-filing clearance

Search 14M+ trademarks

Industries

USPTO Deadlines

Compare

Resources

Company