Who owns the REFRON trademark?

The REFRON trademark is owned by HUDSON TECHNOLOGIES COMPANY.

What class is the REFRON trademark registered in?

The REFRON trademark is registered in Class 001 (Chemicals for industrial, scientific & agricultural use).

What is the serial number for REFRON?

The USPTO serial number for REFRON is 74400682.

What is the registration number for REFRON?

REFRON is registered under USPTO registration number 1851233.

Sealvo

Home Search: REFRONREFRON #74400682

Back

Updated Sep 16, 2026·11 searches this week

View on USPTO TSDR Find similar marks

REF

USPTO Trademark Record

REGISTERED

REFRON

SN 74400682·Reg 1851233·Filed Jun 10, 1993

Owner HUDSON TECHNOLOGIES COMPANY

Chemicals for use in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics; fire extinguishing and fire prevention compositions; tempering and soldering preparations; substances for tanning animal skins and hides; adhesives for use in industry; compost, manures, fertilizers; biological preparations for use in industry and science.

REFRON (Serial No. 74400682), Registration No. 1851233, is a registered US trademark filed on Jun 10, 1993 by HUDSON TECHNOLOGIES COMPANY. This trademark covers Class 001 (Chemicals for industrial, scientific & agricultural use).

Section 8/9 declaration window: August 30, 2034

Conflict Analysis

Full conflict analysis for REFRON (SN 74400682) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

REFRON (Reg. #1851233) is a registered US trademark that has been protecting its owner, HUDSON TECHNOLOGIES COMPANY, since 1993. The mark covers Class 001 (Chemicals for industrial, scientific & agricultural use). Goods and services include Chemicals for use in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocesse.... The mark faced 1 opposition proceeding during prosecution.

FILED

Jun 10, 1993

SERIAL

74400682

REG#

1851233

REGISTERED

Aug 30, 1994

Filing Information

StatusREGISTERED

Filing DateJun 10, 1993

Serial Number74400682

Registration No.1851233

Registration DateAug 30, 1994

Status DateJun 10, 2025

Published for OppositionFeb 08, 1994

Filing Basis & Declarations

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

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 001Chemicals for industrial, scientific & agricultural use

US codes: 006

First use anywhere: May 12, 1993

First use in commerce: May 12, 1993

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

58 events

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

Jun 10, 2025

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

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

Jun 10, 2025

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

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

Jun 10, 2025

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - 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

POST REGISTRATION ACTION MAILED - SEC. 8 & 9

Jun 09, 2025

POST REGISTRATION ACTION MAILED - SEC. 8 & 9

TEAS RESPONSE TO OFFICE ACTION-POST REG RECEIVED

Jun 09, 2025

TEAS RESPONSE TO OFFICE ACTION-POST REG RECEIVED

Jun 06, 2025

TEAS RESPONSE TO OFFICE ACTION-POST REG RECEIVED

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

Jun 05, 2025

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jun 05, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jun 05, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS RESPONSE TO OFFICE ACTION-POST REG RECEIVED

Jun 05, 2025

TEAS RESPONSE TO OFFICE ACTION-POST REG RECEIVED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Dec 06, 2024

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

POST REGISTRATION ACTION MAILED - SEC. 8 & 9

Dec 06, 2024

POST REGISTRATION ACTION MAILED - SEC. 8 & 9

TEAS SECTION 8 & 9 RECEIVED

Aug 30, 2024

TEAS SECTION 8 & 9 RECEIVED

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

Aug 30, 2023

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

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

May 11, 2022

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Jan 27, 2021

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Jun 20, 2020

TEAS CHANGE OF OWNER ADDRESS RECEIVED

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

Jun 20, 2020

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jun 20, 2020

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Jun 20, 2020

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jun 20, 2020

TEAS CHANGE OF CORRESPONDENCE RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Jun 20, 2020

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Jan 08, 2020

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Feb 21, 2018

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Feb 14, 2018

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Feb 12, 2018

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Feb 12, 2018

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Feb 12, 2018

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Nov 08, 2017

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Sep 14, 2014

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Sep 14, 2014

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

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Sep 14, 2014

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

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

Sep 14, 2014

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

TEAS SECTION 8 & 9 RECEIVED

Sep 02, 2014

TEAS SECTION 8 & 9 RECEIVED

CASE FILE IN TICRS

Apr 21, 2011

CASE FILE IN TICRS

Mar 28, 2011

CASE FILE IN TICRS

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

May 06, 2010

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

REVIEW OF CORRESPONDENCE COMPLETE

Jun 11, 2007

REVIEW OF CORRESPONDENCE COMPLETE

PAPER RECEIVED

May 04, 2007

PAPER RECEIVED

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

Jul 28, 2004

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

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Jul 28, 2004

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

TEAS SECTION 8 & 9 RECEIVED

May 24, 2004

TEAS SECTION 8 & 9 RECEIVED

REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED

May 24, 2004

REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED

REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.

Mar 04, 2000

REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.

REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED

Nov 12, 1999

REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED

REGISTERED-PRINCIPAL REGISTER

Aug 30, 1994

REGISTERED-PRINCIPAL REGISTER

EXTENSION OF TIME TO OPPOSE RECEIVED

Mar 14, 1994

EXTENSION OF TIME TO OPPOSE RECEIVED

PUBLISHED FOR OPPOSITION

Feb 08, 1994

PUBLISHED FOR OPPOSITION

NOTICE OF PUBLICATION

Jan 07, 1994

NOTICE OF PUBLICATION

APPROVED FOR PUB - PRINCIPAL REGISTER

Nov 17, 1993

APPROVED FOR PUB - PRINCIPAL REGISTER

EXAMINER'S AMENDMENT MAILED

Nov 10, 1993

EXAMINER'S AMENDMENT MAILED

PREVIOUS ALLOWANCE COUNT WITHDRAWN

Nov 08, 1993

PREVIOUS ALLOWANCE COUNT WITHDRAWN

APPROVED FOR PUB - PRINCIPAL REGISTER

Oct 29, 1993

APPROVED FOR PUB - PRINCIPAL REGISTER

EXAMINER'S AMENDMENT MAILED

Oct 12, 1993

EXAMINER'S AMENDMENT MAILED

ASSIGNED TO EXAMINER

Sep 22, 1993

ASSIGNED TO EXAMINER

Other Marks by HUDSON TECHNOLOGIES COMPANY

Additional USPTO filings from the same owner.

CHI

CHILLER CHEMISTRY

78591426

HUDSON TECHNOLOGIES COMPANY

REGISTERED

REK

REKLAIM

87184839

HUDSON TECHNOLOGIES COMPANY

REGISTERED

RSI

R-SIDE

75532328

HUDSON TECHNOLOGIES COMPANY

REGISTERED

REK

REKLAIM

77122995

HUDSON TECHNOLOGIES COMPANY

REGISTERED

Other Marks by Francis J. Duffin

Additional USPTO filings handled by the same attorney of record.

ASP

ASPA

86777284

REGISTERED

ICH

ICHRT

86332550

REGISTERED

LOG

LogoMark

99466477

REGISTERED

TWO

TWO TREES INN

74621388

REGISTERED

REFRON

Run a conflict check

Other Marks by HUDSON TECHNOLOGIES COMPANY

Other Marks by Francis J. Duffin

Get pre-filing clearance

Search 15M+ trademarks

Resources

Company