Who owns the PROOF OF WORK LABS trademark?

The PROOF OF WORK LABS trademark is owned by CUESTA BRANDS LLC.

What class is the PROOF OF WORK LABS trademark registered in?

The PROOF OF WORK LABS trademark is registered in Class 005 (Pharmaceuticals, medical & veterinary preparations).

What is the serial number for PROOF OF WORK LABS?

The USPTO serial number for PROOF OF WORK LABS is 99579277.

What is the registration number for PROOF OF WORK LABS?

PROOF OF WORK LABS is registered under USPTO registration number 0.

PRO

USPTO Trademark Record

PENDING

PROOF OF WORK LABS

SN 99579277·Reg 0·Filed Jan 06, 2026

Owner CUESTA BRANDS LLC

Pharmaceuticals, medical and veterinary preparations; sanitary preparations for medical purposes; dietetic food and substances adapted for medical or veterinary purposes, food for babies; dietary supplements for human beings and animals; adhesive plasters, materials for dressings; material for filling teeth, dental wax; disinfectants; preparations for destroying vermin; fungicides, herbicides.

PROOF OF WORK LABS (Serial No. 99579277), Registration No. 0, is a pending US trademark filed on Jan 06, 2026 by CUESTA BRANDS LLC. This trademark covers Class 005 (Pharmaceuticals, medical & veterinary preparations).

Statement of Use due: January 28, 2027121 days remaining

Mark Intelligence

PROOF OF WORK LABS (Reg. #0) is a pending US trademark that was filed in 2026 and is currently under USPTO examination. The mark covers Class 005 (Pharmaceuticals, medical & veterinary preparations). Goods and services include Pharmaceuticals, medical and veterinary preparations; sanitary preparations for medical purposes; dietetic food and subs.... The mark faced 1 opposition proceeding during prosecution.

FILED

Jan 06, 2026

SERIAL

99579277

REG#

REGISTERED

Dec 31, 1969

Owner

Applicant

CUESTA BRANDS LLC

Entity

LLC

State

Address

168 Valley Grove Dr, Ponte Vedra, FL, 32081

Country

Attorney

NameAyse Huma Lofca

Law firm

Ayse Huma Lofca TRAMA LEGAL, PLLC

Address

1178 Broadway, Floor 3, New York, NY 10001, United States

Get pre-filing clearance

AI attorney analyzes your proposed mark against USPTO — Go/No-Go verdict, class-by-class risks, and strategy recommendations.

Run clearance

Filing Information

StatusPENDING

Filing DateJan 06, 2026

Serial Number99579277

Registration No.0

Registration DateDec 31, 1969

Status DateJul 28, 2026

Published for OppositionJun 02, 2026

Mark TypeStandard characters

Status DescriptionLive and pending, notice of allowance issued

Filing Signals

FILED

2026

YEARS AGO

CLASSES

MADRID FILINGS

—

Opposed 1× during prosecution

Search 15M+ trademarks

Free USPTO lookups by name, owner, or serial number. No account needed.

Search now

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 005Pharmaceuticals, medical & veterinary preparations

US codes: 005, 006, 018, 044, 046, 051, 052

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

Status History

16 events

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Jul 28, 2026

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

PUBLISHED FOR OPPOSITION

Jun 02, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jun 02, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

May 27, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

May 05, 2026

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS CHANGE OF CORRESPONDENCE RECEIVED

May 04, 2026

TEAS CHANGE OF CORRESPONDENCE RECEIVED

ASSIGNED TO EXAMINER

May 04, 2026

ASSIGNED TO EXAMINER

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

May 04, 2026

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

May 04, 2026

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

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

Feb 24, 2026

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Feb 24, 2026

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Feb 24, 2026

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Feb 24, 2026

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jan 06, 2026

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

APPLICATION FILING RECEIPT MAILED

Jan 06, 2026

APPLICATION FILING RECEIPT MAILED

NEW APPLICATION ENTERED

Jan 06, 2026

NEW APPLICATION ENTERED

PROOF OF WORK LABS

Get pre-filing clearance

Search 15M+ trademarks

Run a conflict check

Other Marks by CUESTA BRANDS LLC

Other Marks in Class 005 — Pharmaceuticals, medical & veterinary preparations

Other Marks by Ayse Huma Lofca

Resources

Company