Who owns the X CHALLENGE trademark?

The X CHALLENGE trademark is owned by X PRIZE Foundation, Inc..

What is the serial number for X CHALLENGE?

The USPTO serial number for X CHALLENGE is 85975958.

What is the registration number for X CHALLENGE?

X CHALLENGE is registered under USPTO registration number 4085291.

Sealvo

Home Search: X CHALLENGEX CHALLENGE #85975958

Back

Updated Oct 2, 2026·28 searches this week

View on USPTO TSDR Find similar marks

XCH

USPTO Trademark Record

REGISTERED

X CHALLENGE

Q: What class is the X CHALLENGE trademark registered in?

The X CHALLENGE trademark is registered in Class 035 (Advertising, business management & retail services), Class 041 (Education & entertainment services).

SN 85975958·Reg 4085291·Filed Sep 02, 2010

Owner X PRIZE Foundation, Inc.

Advertising; business management, organization and administration; office functions.; Education; providing of training; entertainment; sporting and cultural activities.

X CHALLENGE (Serial No. 85975958), Registration No. 4085291, is a registered US trademark filed on Sep 02, 2010 by X PRIZE Foundation, Inc.. This trademark covers Class 035 (Advertising, business management & retail services), Class 041 (Education & entertainment services).

Section 8/9 declaration window: January 12, 2032

Conflict Analysis

Full conflict analysis for X CHALLENGE (SN 85975958) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

X CHALLENGE (Reg. #4085291) is a registered US trademark that has been protecting its owner, X PRIZE Foundation, Inc., since 2010. The mark covers Class 035 (Advertising, business management & retail services) and Class 041 (Education & entertainment services) respectively. Goods and services include Advertising; business management, organization and administration; office functions.; Education; providing of training; .... The mark faced 1 opposition proceeding during prosecution.

FILED

Sep 02, 2010

SERIAL

85975958

REG#

4085291

REGISTERED

Jan 10, 2012

Filing Information

StatusREGISTERED

Filing DateSep 02, 2010

Serial Number85975958

Registration No.4085291

Registration DateJan 10, 2012

Status DateApr 19, 2022

Published for OppositionAug 02, 2011

Filing Basis & Declarations

Standard Characters ClaimedUse Application CurrentlySection 8 AcceptedSection 15 Acknowledged

International Filings

Madrid Protocol1 filings

This mark has 1 Madrid Protocol filing on record with the USPTO.

1073309

480Mar 02, 2011

Source: USPTO Madrid International Filing Requests

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 035Advertising, business management & retail services

US codes: 100, 101, 102

First use anywhere: May 05, 2006

First use in commerce: May 05, 2006

Advertising; business management, organization and administration; office functions.

Class 041Education & entertainment services

US codes: 100, 101, 107

First use anywhere: May 05, 2006

First use in commerce: May 05, 2006

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

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

Run a conflict check

Search by serial number, mark name, or logo. See conflicting marks ranked by risk with clear explanations of what contributed.

Run conflict check

Status History

50 events

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

Feb 23, 2026

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Feb 23, 2026

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Feb 23, 2026

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Feb 23, 2026

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Mar 28, 2025

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Mar 28, 2025

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

Mar 28, 2025

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Mar 28, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Mar 28, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Apr 19, 2022

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Apr 19, 2022

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

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Apr 19, 2022

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

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

Apr 19, 2022

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

TEAS SECTION 8 & 9 RECEIVED

Dec 20, 2021

TEAS SECTION 8 & 9 RECEIVED

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

Jan 10, 2021

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

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

Jul 23, 2018

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

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

Jul 23, 2018

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

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jul 23, 2018

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

TEAS SECTION 8 & 15 RECEIVED

Jul 10, 2018

TEAS SECTION 8 & 15 RECEIVED

REGISTERED-PRINCIPAL REGISTER

Jan 10, 2012

REGISTERED-PRINCIPAL REGISTER

NOTICE OF ACCEPTANCE OF STATEMENT OF USE MAILED

Dec 07, 2011

NOTICE OF ACCEPTANCE OF STATEMENT OF USE MAILED

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

Dec 06, 2011

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

LAW OFFICE REGISTRATION REVIEW COMPLETED

Dec 06, 2011

LAW OFFICE REGISTRATION REVIEW COMPLETED

DIVISIONAL PROCESSING COMPLETE

Nov 25, 2011

DIVISIONAL PROCESSING COMPLETE

RESPONSE TO ITU OFFICE ACTION ENTERED

Nov 25, 2011

RESPONSE TO ITU OFFICE ACTION ENTERED

STATEMENT OF USE PROCESSING COMPLETE

Nov 25, 2011

STATEMENT OF USE PROCESSING COMPLETE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Nov 16, 2011

TEAS RESPONSE TO OFFICE ACTION RECEIVED

ITU OFFICE ACTION ISSUED FOR DIVISIONAL REQUEST

Oct 18, 2011

ITU OFFICE ACTION ISSUED FOR DIVISIONAL REQUEST

CASE ASSIGNED TO INTENT TO USE PARALEGAL

Oct 12, 2011

CASE ASSIGNED TO INTENT TO USE PARALEGAL

USE AMENDMENT FILED

Oct 11, 2011

USE AMENDMENT FILED

TEAS REQUEST TO DIVIDE RECEIVED

Oct 11, 2011

TEAS REQUEST TO DIVIDE RECEIVED

TEAS STATEMENT OF USE RECEIVED

Oct 11, 2011

TEAS STATEMENT OF USE RECEIVED

DIVISIONAL REQUEST RECEIVED

Oct 11, 2011

DIVISIONAL REQUEST RECEIVED

NOA MAILED - SOU REQUIRED FROM APPLICANT

Sep 27, 2011

NOA MAILED - SOU REQUIRED FROM APPLICANT

PUBLISHED FOR OPPOSITION

Aug 02, 2011

PUBLISHED FOR OPPOSITION

NOTICE OF PUBLICATION

Jul 13, 2011

NOTICE OF PUBLICATION

LAW OFFICE PUBLICATION REVIEW COMPLETED

Jun 27, 2011

LAW OFFICE PUBLICATION REVIEW COMPLETED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jun 24, 2011

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO LIE

Jun 24, 2011

ASSIGNED TO LIE

EXAMINERS AMENDMENT -WRITTEN

Jun 20, 2011

EXAMINERS AMENDMENT -WRITTEN

EXAMINER'S AMENDMENT ENTERED

Jun 20, 2011

EXAMINER'S AMENDMENT ENTERED

EXAMINERS AMENDMENT MAILED

Jun 20, 2011

EXAMINERS AMENDMENT MAILED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Jun 15, 2011

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Jun 15, 2011

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Jun 15, 2011

TEAS/EMAIL CORRESPONDENCE ENTERED

NON-FINAL ACTION MAILED

Dec 15, 2010

NON-FINAL ACTION MAILED

ASSIGNED TO EXAMINER

Dec 14, 2010

ASSIGNED TO EXAMINER

NON-FINAL ACTION WRITTEN

Dec 14, 2010

NON-FINAL ACTION WRITTEN

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Sep 07, 2010

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Sep 06, 2010

NEW APPLICATION ENTERED

Other Marks by X PRIZE Foundation, Inc.

Additional USPTO filings from the same owner.

VIS

VISIONEERING

86266415

X PRIZE Foundation, Inc.

REGISTERED

XPR

XPRIZE CONNECT

98898734

X PRIZE FOUNDATION, INC.

REGISTERED

XPR

X PRIZE

77927012

X PRIZE FOUNDATION, INC.

REGISTERED

THE

THE NEW SPIRIT OF ST. LOUIS

76268656

X PRIZE FOUNDATION, INC.

REGISTERED

Other Marks in Class 035 — Advertising, business management & retail services

Recently filed and registered marks in the same international class.

XCH

X CHALLENGE

85121803

X PRIZE Foundation, Inc.

ABANDONED

CHA

CHALLENGE

90843774

Surovy, Aliaksei

REGISTERED

CHA

CHALLENGE GROUP CHALLENGE ACCEPTED

98054183

CHALLENGE AIRLINES (IL) LTD

REGISTERED

X X

98186987

deadtekk LLC

REGISTERED

Other Marks by Donielle F. Robinson

Additional USPTO filings handled by the same attorney of record.

BRI

BRILLIANT CITIES

98248246

REGISTERED

VIS

VISIONEERING

86266415

REGISTERED

XPR

XPRIZE CONNECT

98898734

REGISTERED

KC3

98472995

REGISTERED

X CHALLENGE

Run a conflict check

Other Marks by X PRIZE Foundation, Inc.

Other Marks in Class 035 — Advertising, business management & retail services

Other Marks by Donielle F. Robinson

Get pre-filing clearance

Search 15M+ trademarks

Resources

Company