Who owns the ZK trademark?

The ZK trademark is owned by Zero Knowledge Podcast LTD.

What class is the ZK trademark registered in?

The ZK trademark is registered in Class 041 (Education & entertainment services).

What is the serial number for ZK?

The USPTO serial number for ZK is 98137298.

What is the registration number for ZK?

ZK is registered under USPTO registration number 7773421.

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USPTO Trademark Record

REGISTERED

ZK

SN 98137298·Reg 7773421·Filed Aug 17, 2023

Owner Zero Knowledge Podcast LTD

Education; providing of training; entertainment; sporting and cultural activities.

ZK (Serial No. 98137298), Registration No. 7773421, is a registered US trademark filed on Aug 17, 2023 by Zero Knowledge Podcast LTD. This trademark covers Class 041 (Education & entertainment services).

early section 8: April 29, 2031

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Mark Intelligence

ZK (Reg. #7773421) is a registered US trademark that has been protecting its owner, Zero Knowledge Podcast LTD, since 2023. The mark covers Class 041 (Education & entertainment services). Goods and services include Education; providing of training; entertainment; sporting and cultural activities.. The mark faced 1 opposition proceeding during prosecution.

FILED

Aug 17, 2023

SERIAL

98137298

REG#

7773421

REGISTERED

Apr 29, 2025

Filing Information

StatusREGISTERED

Filing DateAug 17, 2023

Serial Number98137298

Registration No.7773421

Registration DateApr 29, 2025

Status DateApr 29, 2025

Published for OppositionMar 11, 2025

Filing Basis & Declarations

Filed as Use ApplicationUse Application Currently

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 041Education & entertainment services

US codes: 100, 101, 107

First use anywhere: Jan 31, 2018

First use in commerce: Jan 31, 2018

Education; providing of training; entertainment; sporting and cultural activities.

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

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Status History

45 events

TEAS WITHDRAWAL OF ATTORNEY RECEIVED

Jun 26, 2026

TEAS WITHDRAWAL OF ATTORNEY RECEIVED

WITHDRAWAL OF ATTORNEY GRANTED

Jun 26, 2026

WITHDRAWAL OF ATTORNEY GRANTED

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

Jun 12, 2026

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jun 12, 2026

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS WITHDRAWAL AS DOMESTIC REPRESENTATIVE RECEIVED

Jun 12, 2026

TEAS WITHDRAWAL AS DOMESTIC REPRESENTATIVE RECEIVED

TEAS CHANGE OF OWNER ADDRESS RECEIVED

May 09, 2025

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

May 09, 2025

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

May 09, 2025

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

May 09, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

May 09, 2025

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

TEAS CHANGE OF CORRESPONDENCE RECEIVED

May 09, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

REGISTERED-PRINCIPAL REGISTER

Apr 29, 2025

REGISTERED-PRINCIPAL REGISTER

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Apr 29, 2025

NOTICE OF REGISTRATION CONFIRMATION EMAILED

PUBLISHED FOR OPPOSITION

Mar 11, 2025

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Mar 11, 2025

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Mar 05, 2025

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

LAW OFFICE PUBLICATION REVIEW COMPLETED

Feb 18, 2025

LAW OFFICE PUBLICATION REVIEW COMPLETED

APPROVED FOR PUB - PRINCIPAL REGISTER

Feb 14, 2025

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO LIE

Feb 12, 2025

ASSIGNED TO LIE

CORRESPONDENCE RECEIVED IN LAW OFFICE

Feb 12, 2025

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Feb 12, 2025

TEAS/EMAIL CORRESPONDENCE ENTERED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Feb 10, 2025

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Feb 10, 2025

TEAS RESPONSE TO OFFICE ACTION RECEIVED

TEAS/EMAIL CORRESPONDENCE ENTERED

Feb 10, 2025

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

Feb 06, 2025

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

TEAS WITHDRAWAL AS DOMESTIC REPRESENTATIVE RECEIVED

Feb 06, 2025

TEAS WITHDRAWAL AS DOMESTIC REPRESENTATIVE RECEIVED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Feb 06, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Feb 06, 2025

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Feb 06, 2025

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

Feb 06, 2025

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Feb 06, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

APPLICATION EXTENSION TO RESPONSE PERIOD - RECEIVED

Nov 04, 2024

APPLICATION EXTENSION TO RESPONSE PERIOD - RECEIVED

APPLICATION EXTENSION GRANTED/RECEIPT PROVIDED

Nov 04, 2024

APPLICATION EXTENSION GRANTED/RECEIPT PROVIDED

NON-FINAL ACTION WRITTEN

Aug 09, 2024

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Aug 09, 2024

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Aug 09, 2024

NOTIFICATION OF NON-FINAL ACTION E-MAILED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Jul 19, 2024

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Jul 19, 2024

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Jul 19, 2024

TEAS/EMAIL CORRESPONDENCE ENTERED

NON-FINAL ACTION WRITTEN

Apr 19, 2024

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Apr 19, 2024

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Apr 19, 2024

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Apr 17, 2024

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Sep 15, 2023

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Aug 21, 2023

NEW APPLICATION ENTERED

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