Who owns the TENAX trademark?

The TENAX trademark is owned by TENAX ENERGY SYSTEMS, LLC.

What is the serial number for TENAX?

The USPTO serial number for TENAX is 87750270.

What is the registration number for TENAX?

TENAX is registered under USPTO registration number 5707203.

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Home Search: TENAXTENAX #87750270

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Updated Oct 22, 2026·30 searches this week

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TEN

USPTO Trademark Record

REGISTERED

TENAX

Q: What class is the TENAX trademark registered in?

The TENAX trademark is registered in Class 037 (Construction, installation & repair services), Class 042 (Scientific, technology & SaaS services).

SN 87750270·Reg 5707203·Filed Jan 10, 2018

Owner TENAX ENERGY SYSTEMS, LLC

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

TENAX (Serial No. 87750270), Registration No. 5707203, is a registered US trademark filed on Jan 10, 2018 by TENAX ENERGY SYSTEMS, LLC. This trademark covers Class 037 (Construction, installation & repair services), Class 042 (Scientific, technology & SaaS services).

Section 8/9 declaration window: March 26, 2029

Mark Intelligence

TENAX (Reg. #5707203) is a registered US trademark that has been protecting its owner, TENAX ENERGY SYSTEMS, LLC, since 2018. The mark covers Class 037 (Construction, installation & repair services) and Class 042 (Scientific, technology & SaaS services) respectively. Goods and services include Construction services; installation and repair services; mining extraction, oil and gas drilling.; Scientific and techno.... The mark faced 1 opposition proceeding during prosecution.

FILED

Jan 10, 2018

SERIAL

87750270

REG#

5707203

REGISTERED

Mar 26, 2019

Filing Information

StatusREGISTERED

Filing DateJan 10, 2018

Serial Number87750270

Registration No.5707203

Registration DateMar 26, 2019

Status DateJul 30, 2025

Published for OppositionJan 08, 2019

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application CurrentlySection 15 Acknowledged

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 037Construction, installation & repair services

US codes: 100, 103, 106

First use anywhere: Oct 01, 2013

First use in commerce: Oct 01, 2013

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

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: Oct 01, 2013

First use in commerce: Oct 01, 2013

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.

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

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Status History

27 events

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Oct 08, 2025

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED

Jul 30, 2025

NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jul 30, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Jul 30, 2025

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

TEAS SECTION 8 & 15 RECEIVED

Mar 26, 2025

TEAS SECTION 8 & 15 RECEIVED

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

Mar 26, 2024

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

REGISTERED-PRINCIPAL REGISTER

Mar 26, 2019

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Jan 08, 2019

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jan 08, 2019

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Dec 19, 2018

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Dec 03, 2018

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS/EMAIL CORRESPONDENCE ENTERED

Nov 30, 2018

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS REQUEST FOR RECONSIDERATION RECEIVED

Nov 30, 2018

TEAS REQUEST FOR RECONSIDERATION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Nov 30, 2018

CORRESPONDENCE RECEIVED IN LAW OFFICE

FINAL REFUSAL WRITTEN

Nov 27, 2018

FINAL REFUSAL WRITTEN

FINAL REFUSAL E-MAILED

Nov 27, 2018

FINAL REFUSAL E-MAILED

NOTIFICATION OF FINAL REFUSAL EMAILED

Nov 27, 2018

NOTIFICATION OF FINAL REFUSAL EMAILED

TEAS/EMAIL CORRESPONDENCE ENTERED

Nov 06, 2018

TEAS/EMAIL CORRESPONDENCE ENTERED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Nov 06, 2018

CORRESPONDENCE RECEIVED IN LAW OFFICE

ASSIGNED TO LIE

Nov 05, 2018

ASSIGNED TO LIE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Oct 25, 2018

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Apr 27, 2018

NOTIFICATION OF NON-FINAL ACTION E-MAILED

NON-FINAL ACTION E-MAILED

Apr 27, 2018

NON-FINAL ACTION E-MAILED

NON-FINAL ACTION WRITTEN

Apr 27, 2018

NON-FINAL ACTION WRITTEN

ASSIGNED TO EXAMINER

Apr 19, 2018

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jan 24, 2018

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Jan 13, 2018

NEW APPLICATION ENTERED

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