ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
04/01/2026
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Official data from USPTO
MARKWEST
Did you know this trademark is already registered in United States?
Before investing in name, identity, and promotion, validate collision risk and registration strategy to avoid wasting time and budget.
Active USPTO registrationType: CombinedOffice: US
Risk and opportunity diagnosis
Executive reading for naming, filing, and monitoring decisions.
USPTO status
Active USPTO registration
Case type
Application and registration
Recorded events
26
Latest update
04/02/2026
Classification
Registered
Trademark type
Combined
Nice classes
4
Filing date
07/06/2011
Registration date
02/21/2012
Expiration date
-
Recommended action
Perform a full collision analysis and validate classes before any filing or trademark investment.
Next step
These are the details of the registration process. Even so, constant monitoring is what ensures peace of mind that your main asset remains protected.
Complete case details
Structured fields from the responsible authority and the official record.
Status date
03/10/2023
Last transaction
04/02/2026
Responsible office
United States Patent and Trademark Office
Status code
800
Official register
Principal Register
First use anywhere
03/11/1988
First use in commerce
03/11/1988
Drawing code
5
Owner type
16
Owner location
DENVER, CO, US
Examiner
BROWN, BARBARA TROFFKIN
Law office
M70
Current location
GENERIC WEB UPDATE
Mark description
The mark consists of the wording "MARKWEST" with the letters MARK in italicized format and the letter A depicted in stylized format without the horizontal line.
Holders and representatives
Holders
MARKWEST ENERGY PARTNERS LLC
MarkWest Energy Partners, L.P.
Representatives
Randel S. Springer Womble Bond Dickinson (US) LLP
Technical classification
Nice Classes
Class 4
Vienna Codes
No Vienna codes available.
Goods and services
Class 4
Hydrocarbon fuels
Publications
History of USPTO decisions and trademark events.
26 publications found
NA89
NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
03/10/2023
RNL1
REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)
03/10/2023
89AG
REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
03/10/2023
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
03/10/2023
E89R
TEAS SECTION 8 & 9 RECEIVED
08/22/2022
REM2
COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
02/21/2021
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
02/26/2020
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
02/26/2020
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
02/26/2020
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
02/26/2020
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
02/26/2020
NA85
NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED
10/22/2017
C15A
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
10/22/2017
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
10/22/2017
E815
TEAS SECTION 8 & 15 RECEIVED
09/28/2017
REM1
COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED
02/21/2017
R.PR
REGISTERED-PRINCIPAL REGISTER
02/21/2012
NPUB
OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
12/06/2011
PUBO
PUBLISHED FOR OPPOSITION
12/06/2011
NONP
NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
11/16/2011
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
10/26/2011
DOCK
ASSIGNED TO EXAMINER
10/24/2011
MPMK
NOTICE OF PSEUDO MARK MAILED
07/13/2011
NWOS
NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
07/12/2011
NWAP
NEW APPLICATION ENTERED
07/09/2011
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