Who owns the RHYTHM trademark?

The RHYTHM trademark is owned by Rhythm Pharmaceuticals, Inc..

What class is the RHYTHM trademark registered in?

The RHYTHM trademark is registered in Class 042 (Scientific, technology & SaaS services).

What is the serial number for RHYTHM?

The USPTO serial number for RHYTHM is 88976878.

What is the registration number for RHYTHM?

RHYTHM is registered under USPTO registration number 6035604.

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Updated Oct 13, 2026·29 searches this week

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RHY

USPTO Trademark Record

REGISTERED

RHYTHM

SN 88976878·Reg 6035604·Filed May 08, 2019

Owner Rhythm Pharmaceuticals, Inc.

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.

RHYTHM (Serial No. 88976878), Registration No. 6035604, is a registered US trademark filed on May 08, 2019 by Rhythm Pharmaceuticals, Inc.. This trademark covers Class 042 (Scientific, technology & SaaS services).

Section 8/9 declaration window: April 15, 2030

Mark Intelligence

RHYTHM (Reg. #6035604) is a registered US trademark that has been protecting its owner, Rhythm Pharmaceuticals, Inc., since 2019. The mark covers Class 042 (Scientific, technology & SaaS services). Goods and services include Scientific and technological services and research and design relating thereto; industrial analysis, industrial research.... The mark faced 1 opposition proceeding during prosecution.

FILED

May 08, 2019

SERIAL

88976878

REG#

6035604

REGISTERED

Apr 14, 2020

Filing Information

StatusREGISTERED

Filing DateMay 08, 2019

Serial Number88976878

Registration No.6035604

Registration DateApr 14, 2020

Status DateJan 23, 2026

Published for OppositionAug 06, 2019

Filing Basis & Declarations

Use Application CurrentlySection 8 AcceptedSection 15 Acknowledged

International Filings

Madrid Protocol1 filings

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

1505179

480Nov 01, 2019

Source: USPTO Madrid International Filing Requests

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: May 01, 2019

First use in commerce: May 01, 2019

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

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Status History

38 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jan 23, 2026

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Jan 23, 2026

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

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

Jan 23, 2026

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

TEAS SECTION 8 & 15 RECEIVED

Oct 21, 2025

TEAS SECTION 8 & 15 RECEIVED

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

Apr 14, 2025

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Jun 20, 2024

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Jun 20, 2024

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

Jun 20, 2024

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jun 20, 2024

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jun 20, 2024

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Jun 20, 2024

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Aug 02, 2022

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

AMENDMENT UNDER SECTION 7 - PROCESSED

Aug 02, 2022

AMENDMENT UNDER SECTION 7 - PROCESSED

TEAS SECTION 7 REQUEST RECEIVED

Feb 24, 2022

TEAS SECTION 7 REQUEST RECEIVED

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

Feb 16, 2022

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Feb 16, 2022

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Feb 16, 2022

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Feb 16, 2022

TEAS CHANGE OF CORRESPONDENCE RECEIVED

REGISTERED-PRINCIPAL REGISTER

Apr 14, 2020

REGISTERED-PRINCIPAL REGISTER

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

Mar 11, 2020

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

Mar 10, 2020

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

NOTICE OF DESIGN SEARCH CODE E-MAILED

Feb 22, 2020

NOTICE OF DESIGN SEARCH CODE E-MAILED

CASE ASSIGNED TO INTENT TO USE PARALEGAL

Feb 21, 2020

CASE ASSIGNED TO INTENT TO USE PARALEGAL

DIVISIONAL PROCESSING COMPLETE

Feb 21, 2020

DIVISIONAL PROCESSING COMPLETE

STATEMENT OF USE PROCESSING COMPLETE

Feb 21, 2020

STATEMENT OF USE PROCESSING COMPLETE

TEAS STATEMENT OF USE RECEIVED

Jan 22, 2020

TEAS STATEMENT OF USE RECEIVED

TEAS REQUEST TO DIVIDE RECEIVED

Jan 22, 2020

TEAS REQUEST TO DIVIDE RECEIVED

DIVISIONAL REQUEST RECEIVED

Jan 22, 2020

DIVISIONAL REQUEST RECEIVED

USE AMENDMENT FILED

Jan 22, 2020

USE AMENDMENT FILED

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Oct 01, 2019

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

PUBLISHED FOR OPPOSITION

Aug 06, 2019

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Aug 06, 2019

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jul 17, 2019

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jun 24, 2019

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

Jun 13, 2019

ASSIGNED TO EXAMINER

NOTICE OF DESIGN SEARCH CODE E-MAILED

May 24, 2019

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

May 23, 2019

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

May 11, 2019

NEW APPLICATION ENTERED

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