Who owns the Z-STACK trademark?

The Z-STACK trademark is owned by ZELENKO LABS LLC.

What class is the Z-STACK trademark registered in?

The Z-STACK trademark is registered in Class 005 (Pharmaceuticals, medical & veterinary preparations).

What is the serial number for Z-STACK?

The USPTO serial number for Z-STACK is 90834869.

What is the registration number for Z-STACK?

Z-STACK is registered under USPTO registration number 6812597.

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Home Search: Z-STACKZ-STACK #90834869

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Updated Sep 22, 2026·39 searches this week

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ZST

USPTO Trademark Record

REGISTERED

Z-STACK

SN 90834869·Reg 6812597·Filed Jul 18, 2021

Owner ZELENKO LABS 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.

Z-STACK (Serial No. 90834869), Registration No. 6812597, is a registered US trademark filed on Jul 18, 2021 by ZELENKO LABS LLC. This trademark covers Class 005 (Pharmaceuticals, medical & veterinary preparations).

early section 8: August 09, 2028

Conflict Analysis

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Mark Intelligence

Z-STACK (Reg. #6812597) is a registered US trademark that has been protecting its owner, ZELENKO LABS LLC, since 2021. 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

Jul 18, 2021

SERIAL

90834869

REG#

6812597

REGISTERED

Aug 09, 2022

Filing Information

StatusREGISTERED

Filing DateJul 18, 2021

Serial Number90834869

Registration No.6812597

Registration DateAug 09, 2022

Status DateAug 09, 2022

Published for OppositionMay 24, 2022

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application CurrentlyTrademark

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 005Pharmaceuticals, medical & veterinary preparations

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

First use anywhere: May 16, 2021

First use in commerce: May 16, 2021

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

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Status History

24 events

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Aug 01, 2024

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Aug 01, 2024

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

Aug 01, 2024

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Aug 01, 2024

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Aug 01, 2024

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Aug 02, 2023

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Aug 02, 2023

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Aug 02, 2023

TEAS CHANGE OF CORRESPONDENCE RECEIVED

REGISTERED-PRINCIPAL REGISTER

Aug 09, 2022

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Aug 09, 2022

NOTICE OF REGISTRATION CONFIRMATION EMAILED

PUBLISHED FOR OPPOSITION

May 24, 2022

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

May 24, 2022

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

May 04, 2022

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

EXAMINERS AMENDMENT -WRITTEN

Apr 15, 2022

EXAMINERS AMENDMENT -WRITTEN

EXAMINERS AMENDMENT E-MAILED

Apr 15, 2022

EXAMINERS AMENDMENT E-MAILED

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Apr 15, 2022

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

EXAMINER'S AMENDMENT ENTERED

Apr 15, 2022

EXAMINER'S AMENDMENT ENTERED

APPROVED FOR PUB - PRINCIPAL REGISTER

Apr 15, 2022

APPROVED FOR PUB - PRINCIPAL REGISTER

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

Apr 14, 2022

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Apr 14, 2022

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Apr 14, 2022

TEAS CHANGE OF CORRESPONDENCE RECEIVED

ASSIGNED TO EXAMINER

Apr 08, 2022

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Sep 20, 2021

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Jul 21, 2021

NEW APPLICATION ENTERED

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