ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
10/08/2025
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Official data from USPTO
TENAX
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Active USPTO registrationType: WordOffice: United States
Risk and opportunity diagnosis
Executive reading for naming, filing, and monitoring decisions.
USPTO status
Active USPTO registration
Case type
Application and registration
Recorded events
27
Latest update
10/09/2025
Trademark type
Word
Nice classes
37, 42
Filing date
01/10/2018
Registration date
03/26/2019
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
07/30/2025
Last transaction
10/09/2025
Responsible office
United States Patent and Trademark Office
Status code
705
Official register
Principal Register
First use anywhere
10/01/2013
First use in commerce
10/01/2013
Drawing code
4
Owner type
16
Owner location
CLINTON, OK
Examiner
BRADLEY, EVELYN
Current location
PUBLICATION AND ISSUE SECTION
Holders and representatives
Holders
TENAX ENERGY SYSTEMS, LLC
Tenax Energy Solutions, LLC
Representatives
Ross N. Chaffin, Esquire TOMLINSON MCKINSTRY, P.C.
Technical classification
Nice Classes
Class 37Class 42
Vienna Codes
No Vienna codes available.
Goods and services
Class 37
Technical advice in the field of oil and gas well drilling and hydraulic fracturing; rental of oil and gas well drilling tools and downhole tools used in oil and gas drilling and hydraulic fracturing
Class 42
Research and development of new products in the field of energyspecifically relating to oil and gas extraction and well drilling
Publications
History of USPTO decisions and trademark events.
27 publications found
NA85
NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED
07/30/2025
C15P
REGISTERED - PARTIAL SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
07/30/2025
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
07/30/2025
E815
TEAS SECTION 8 & 15 RECEIVED
03/26/2025
REM1
COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED
03/26/2024
R.PR
REGISTERED-PRINCIPAL REGISTER
03/26/2019
NPUB
OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
01/08/2019
PUBO
PUBLISHED FOR OPPOSITION
01/08/2019
NONP
NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
12/19/2018
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
12/03/2018
TEME
TEAS/EMAIL CORRESPONDENCE ENTERED
11/30/2018
CRFA
CORRESPONDENCE RECEIVED IN LAW OFFICE
11/30/2018
ERFR
TEAS REQUEST FOR RECONSIDERATION RECEIVED
11/30/2018
GNFN
NOTIFICATION OF FINAL REFUSAL EMAILED
11/27/2018
GNFR
FINAL REFUSAL E-MAILED
11/27/2018
CNFR
FINAL REFUSAL WRITTEN
11/27/2018
TEME
TEAS/EMAIL CORRESPONDENCE ENTERED
11/06/2018
CRFA
CORRESPONDENCE RECEIVED IN LAW OFFICE
11/06/2018
ALIE
ASSIGNED TO LIE
11/05/2018
TROA
TEAS RESPONSE TO OFFICE ACTION RECEIVED
10/25/2018
GNRN
NOTIFICATION OF NON-FINAL ACTION E-MAILED
04/27/2018
GNRT
NON-FINAL ACTION E-MAILED
04/27/2018
CNRT
NON-FINAL ACTION WRITTEN
04/27/2018
DOCK
ASSIGNED TO EXAMINER
04/19/2018
NWOS
NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
01/24/2018
NWAP
NEW APPLICATION ENTERED
01/13/2018
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