Who owns the X4 PHARMACEUTICALS trademark?

The X4 PHARMACEUTICALS trademark is owned by X4 Pharmaceuticals, Inc..

What is the serial number for X4 PHARMACEUTICALS?

The USPTO serial number for X4 PHARMACEUTICALS is 88516686.

What is the registration number for X4 PHARMACEUTICALS?

X4 PHARMACEUTICALS is registered under USPTO registration number 6521317.

X4P

USPTO Trademark Record

REGISTERED

X4 PHARMACEUTICALS

Q: What class is the X4 PHARMACEUTICALS trademark registered in?

The X4 PHARMACEUTICALS trademark is registered in Class 005 (Pharmaceuticals, medical & veterinary preparations), Class 042 (Scientific, technology & SaaS services).

SN 88516686·Reg 6521317·Filed Jul 16, 2019

Owner X4 Pharmaceuticals, Inc.

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.; 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.

X4 PHARMACEUTICALS (Serial No. 88516686), Registration No. 6521317, is a registered US trademark filed on Jul 16, 2019 by X4 Pharmaceuticals, Inc.. This trademark covers Class 005 (Pharmaceuticals, medical & veterinary preparations), Class 042 (Scientific, technology & SaaS services).

early section 8: October 12, 2027

Mark Intelligence

X4 PHARMACEUTICALS (Reg. #6521317) is a registered US trademark that has been protecting its owner, X4 Pharmaceuticals, Inc., since 2019. The mark covers Class 005 (Pharmaceuticals, medical & veterinary preparations) and Class 042 (Scientific, technology & SaaS services) respectively. 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 16, 2019

SERIAL

88516686

REG#

6521317

REGISTERED

Oct 12, 2021

Owner

Applicant

X4 Pharmaceuticals, Inc.

Entity

Corporation

State

Address

955 Massachusetts Avenue, 4th Floor, Cambridge, MA, 02139

Country

Attorney

NameKaren K. Won

Law firm

Karen K. Won Mintz, Levin, Cohn, Ferris, Glovsky, and Popeo P.C.

Docket

044715-400

Address

One Financial Center, Boston, MA 02111, United States

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Filing Information

StatusREGISTERED

Filing DateJul 16, 2019

Serial Number88516686

Registration No.6521317

Registration DateOct 12, 2021

Status DateOct 12, 2021

Published for OppositionNov 26, 2019

Mark TypeDesign with words

Attorney Docket044715-400

Status DescriptionLive and registered

Filing Signals

FILED

2019

YEARS AGO

CLASSES

MADRID FILINGS

Opposed 1× during prosecution

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Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 005Pharmaceuticals, medical & veterinary preparations

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

First use anywhere: Jun 23, 2020

First use in commerce: Jun 23, 2020

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: Jun 11, 2019

First use in commerce: Jun 11, 2019

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

51 events

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Dec 09, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Dec 09, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Dec 09, 2025

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Dec 09, 2025

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

Dec 09, 2025

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

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Oct 21, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Oct 21, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

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

Oct 21, 2025

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

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Oct 21, 2025

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

REGISTERED-PRINCIPAL REGISTER

Oct 12, 2021

REGISTERED-PRINCIPAL REGISTER

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

Sep 08, 2021

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

Sep 07, 2021

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

Aug 20, 2021

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

SOU EXTENSION 4 GRANTED

Aug 19, 2021

SOU EXTENSION 4 GRANTED

STATEMENT OF USE PROCESSING COMPLETE

Aug 19, 2021

STATEMENT OF USE PROCESSING COMPLETE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Aug 11, 2021

TEAS RESPONSE TO OFFICE ACTION RECEIVED

ITU OFFICE ACTION ISSUED FOR EXTENSION REQUEST

Aug 10, 2021

ITU OFFICE ACTION ISSUED FOR EXTENSION REQUEST

CASE ASSIGNED TO INTENT TO USE PARALEGAL

Aug 10, 2021

CASE ASSIGNED TO INTENT TO USE PARALEGAL

SOU EXTENSION 4 FILED

Aug 04, 2021

SOU EXTENSION 4 FILED

SOU TEAS EXTENSION RECEIVED

Aug 04, 2021

SOU TEAS EXTENSION RECEIVED

USE AMENDMENT FILED

Aug 04, 2021

USE AMENDMENT FILED

TEAS STATEMENT OF USE RECEIVED

Aug 04, 2021

TEAS STATEMENT OF USE RECEIVED

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

Jul 22, 2021

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

SOU TEAS EXTENSION RECEIVED

Jul 20, 2021

SOU TEAS EXTENSION RECEIVED

SOU EXTENSION 3 FILED

Jul 20, 2021

SOU EXTENSION 3 FILED

SOU EXTENSION 3 GRANTED

Jul 20, 2021

SOU EXTENSION 3 GRANTED

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

Jan 23, 2021

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

SOU TEAS EXTENSION RECEIVED

Jan 21, 2021

SOU TEAS EXTENSION RECEIVED

SOU EXTENSION 2 GRANTED

Jan 21, 2021

SOU EXTENSION 2 GRANTED

SOU EXTENSION 2 FILED

Jan 21, 2021

SOU EXTENSION 2 FILED

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

Jul 22, 2020

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

SOU EXTENSION 1 GRANTED

Jul 20, 2020

SOU EXTENSION 1 GRANTED

SOU EXTENSION 1 FILED

Jul 20, 2020

SOU EXTENSION 1 FILED

SOU TEAS EXTENSION RECEIVED

Jul 20, 2020

SOU TEAS EXTENSION RECEIVED

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Jan 21, 2020

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

PUBLISHED FOR OPPOSITION

Nov 26, 2019

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Nov 26, 2019

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Nov 06, 2019

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

ASSIGNED TO LIE

Oct 23, 2019

ASSIGNED TO LIE

APPROVED FOR PUB - PRINCIPAL REGISTER

Oct 16, 2019

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS/EMAIL CORRESPONDENCE ENTERED

Oct 11, 2019

TEAS/EMAIL CORRESPONDENCE ENTERED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Oct 11, 2019

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Oct 11, 2019

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Oct 11, 2019

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NON-FINAL ACTION E-MAILED

Oct 10, 2019

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Oct 10, 2019

NOTIFICATION OF NON-FINAL ACTION E-MAILED

NON-FINAL ACTION WRITTEN

Oct 10, 2019

NON-FINAL ACTION WRITTEN

ASSIGNED TO EXAMINER

Oct 02, 2019

ASSIGNED TO EXAMINER

NOTICE OF DESIGN SEARCH CODE E-MAILED

Jul 23, 2019

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jul 22, 2019

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Jul 19, 2019

NEW APPLICATION ENTERED

X4 PHARMACEUTICALS

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Other Marks by X4 Pharmaceuticals, Inc.

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