Who owns the MARKWEST trademark?

The MARKWEST trademark is owned by MARKWEST ENERGY PARTNERS LLC.

What class is the MARKWEST trademark registered in?

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

What is the serial number for MARKWEST?

The USPTO serial number for MARKWEST is 85364201.

What is the registration number for MARKWEST?

MARKWEST is registered under USPTO registration number 4102085.

Sealvo

Home Search: MARKWESTMARKWEST #85364201

Back

Updated Nov 2, 2026·11 searches this week

View on USPTO TSDR Find similar marks

Section 8/9 declaration window

February 23, 2032

1939 days remaining

MAR

MARKWEST

REGISTERED

Serial: 85364201
Reg: 4102085
Filed: Jul 06, 2011
Owner: MARKWEST ENERGY PARTNERS LLC

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

What to file next

Section 9 renewal, filed with a Section 8 declaration

When: Due between the ninth and tenth anniversary of registration, then before each tenth anniversary after that.
Extensions and grace: A six-month grace period follows, with an added per-class fee.
If it is missed: A missed renewal cancels the registration, and there is no revival route for it.

How Section 9 renewal works

General information about USPTO practice, not legal advice. The register is the authority, and a filing that has not yet posted can change what is owed.

Full Goods & Services

Class 040Treatment & processing of materials

US codes: 100, 103, 106

First use anywhere: Mar 11, 1988

First use in commerce: Mar 11, 1988

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.

Status History

30 events

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Apr 01, 2026

Code ASGN

POST REGISTRATION ACTION MAILED - SEC. 8 & 9

Jun 06, 2023

Code PR89

TEAS RESPONSE TO OFFICE ACTION-POST REG RECEIVED

Jun 06, 2023

Code EROP

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

Jun 06, 2023

Code 89AG

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Jun 06, 2023

Code RNL1

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

Jun 06, 2023

Code NA89

TEAS RESPONSE TO OFFICE ACTION-POST REG RECEIVED

Jun 05, 2023

Code EROP

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Mar 10, 2023

Code APRE

POST REGISTRATION ACTION MAILED - SEC. 8 & 9

Mar 10, 2023

Code PR89

TEAS SECTION 8 & 9 RECEIVED

Aug 22, 2022

Code E89R

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

Feb 21, 2021

Code REM2

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Feb 26, 2020

Code COAR

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

Feb 26, 2020

Code REAP

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Feb 26, 2020

Code ARAA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Feb 26, 2020

Code TCCA

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Feb 26, 2020

Code CHAN

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Oct 22, 2017

Code APRE

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

Oct 22, 2017

Code C15A

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

Oct 22, 2017

Code NA85

TEAS SECTION 8 & 15 RECEIVED

Sep 28, 2017

Code E815

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

Feb 21, 2017

Code REM1

REGISTERED-PRINCIPAL REGISTER

Feb 21, 2012

Code R.PR

PUBLISHED FOR OPPOSITION

Dec 06, 2011

Code PUBO

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Dec 06, 2011

Code NPUB

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Nov 16, 2011

Code NONP

APPROVED FOR PUB - PRINCIPAL REGISTER

Oct 26, 2011

Code CNSA

ASSIGNED TO EXAMINER

Oct 24, 2011

Code DOCK

NOTICE OF PSEUDO MARK MAILED

Jul 13, 2011

Code MPMK

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jul 12, 2011

Code NWOS

NEW APPLICATION ENTERED

Jul 09, 2011

Code NWAP

MARKWEST

What to file next

Full Goods & Services

Filing Basis & Declarations

Other Marks by MARKWEST ENERGY PARTNERS LLC

Other Marks in Class 040 — Treatment & processing of materials

Other Marks by Randel S. Springer

Get pre-filing clearance

Search 14M+ trademarks

Run a conflict check

Industries

USPTO Deadlines

Compare

Resources

Company