Who owns the ZERO KNOWLEDGE trademark?

The ZERO KNOWLEDGE trademark is owned by Journey.ai.

What class is the ZERO KNOWLEDGE trademark registered in?

The ZERO KNOWLEDGE trademark is registered in Class 038 (Telecommunications services), Class 042 (Scientific, technology & SaaS services).

What is the serial number for ZERO KNOWLEDGE?

The USPTO serial number for ZERO KNOWLEDGE is 88767509.

What is the registration number for ZERO KNOWLEDGE?

ZERO KNOWLEDGE is registered under USPTO registration number 6714687.

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Section 8 declaration window

April 26, 2028

541 days remaining

ZER

ZERO KNOWLEDGE

REGISTERED

Serial: 88767509
Reg: 6714687
Filed: Jan 21, 2020
Owner: Journey.ai

Telecommunications.; Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.

What to file next

Section 8 declaration of continued use

When: Due between the fifth and sixth anniversary of registration.
Extensions and grace: A six-month grace period follows, with an added per-class fee.
If it is missed: A missed Section 8 cancels the registration, and there is no revival route for it.

How the Section 8 deadline 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 038Telecommunications services

US codes: 100, 101, 104

First use anywhere: Jan 21, 2020

First use in commerce: Jan 21, 2020

Telecommunications.

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: Jan 21, 2020

First use in commerce: Jan 21, 2020

Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.

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

Status History

54 events

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Nov 07, 2025

Code ARAA

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

Nov 07, 2025

Code REAP

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Nov 07, 2025

Code CHAN

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Nov 07, 2025

Code TCCA

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Nov 07, 2025

Code COAR

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Sep 03, 2025

Code TCCA

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Sep 03, 2025

Code COAR

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Sep 03, 2025

Code CHAN

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

Sep 03, 2025

Code REAP

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Sep 03, 2025

Code ARAA

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Jan 04, 2024

Code EWAF

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jan 04, 2024

Code TCCA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jan 04, 2024

Code ARAA

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

Jan 04, 2024

Code REAP

REGISTERED-SUPPLEMENTAL REGISTER

Apr 26, 2022

Code R.SR

LAW OFFICE PUBLICATION REVIEW COMPLETED

Mar 21, 2022

Code PREV

NOTICE OF ACCEPTANCE OF AMENDMENT TO ALLEGE USE E-MAILED

Mar 15, 2022

Code AAUA

EXAMINER'S AMENDMENT ENTERED

Mar 14, 2022

Code XAEC

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Mar 14, 2022

Code GNEN

EXAMINERS AMENDMENT E-MAILED

Mar 14, 2022

Code GNEA

EXAMINERS AMENDMENT -WRITTEN

Mar 14, 2022

Code CNEA

USE AMENDMENT ACCEPTED

Mar 14, 2022

Code IUAA

APPROVED FOR REGISTRATION SUPPLEMENTAL REGISTER

Mar 14, 2022

Code CNTA

TEAS/EMAIL CORRESPONDENCE ENTERED

Mar 10, 2022

Code TEME

CORRESPONDENCE RECEIVED IN LAW OFFICE

Mar 10, 2022

Code CRFA

TEAS REQUEST FOR RECONSIDERATION RECEIVED

Mar 08, 2022

Code ERFR

FINAL REFUSAL E-MAILED

Sep 09, 2021

Code GNFR

FINAL REFUSAL WRITTEN

Sep 09, 2021

Code CNFR

NOTIFICATION OF FINAL REFUSAL EMAILED

Sep 09, 2021

Code GNFN

CORRESPONDENCE RECEIVED IN LAW OFFICE

Aug 11, 2021

Code CRFA

ASSIGNED TO LIE

Aug 11, 2021

Code ALIE

TEAS/EMAIL CORRESPONDENCE ENTERED

Aug 11, 2021

Code TEME

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Aug 06, 2021

Code TROA

NON-FINAL ACTION E-MAILED

Jun 02, 2021

Code GNRT

NON-FINAL ACTION WRITTEN

Jun 02, 2021

Code CNRT

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Jun 02, 2021

Code GNRN

AMENDMENT TO USE PROCESSING COMPLETE

May 07, 2021

Code AUPC

TEAS/EMAIL CORRESPONDENCE ENTERED

May 07, 2021

Code TEME

USE AMENDMENT FILED

May 07, 2021

Code IUAF

CORRESPONDENCE RECEIVED IN LAW OFFICE

May 06, 2021

Code CRFA

TEAS RESPONSE TO OFFICE ACTION RECEIVED

May 06, 2021

Code TROA

TEAS AMENDMENT OF USE RECEIVED

May 06, 2021

Code EAAU

NON-FINAL ACTION E-MAILED

Nov 10, 2020

Code GNRT

NON-FINAL ACTION WRITTEN

Nov 10, 2020

Code CNRT

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Nov 10, 2020

Code GNRN

TEAS/EMAIL CORRESPONDENCE ENTERED

Oct 15, 2020

Code TEME

CORRESPONDENCE RECEIVED IN LAW OFFICE

Oct 14, 2020

Code CRFA

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Oct 14, 2020

Code TROA

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Apr 14, 2020

Code GNRN

NON-FINAL ACTION E-MAILED

Apr 14, 2020

Code GNRT

NON-FINAL ACTION WRITTEN

Apr 14, 2020

Code CNRT

ASSIGNED TO EXAMINER

Apr 08, 2020

Code DOCK

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jan 25, 2020

Code NWOS

NEW APPLICATION ENTERED

Jan 24, 2020

Code NWAP

ZERO KNOWLEDGE

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