USPTO trademark

RHYTHM

RegisteredUSPTOWord markClass 5Class 16

"RHYTHM" is a word mark owned by Rhythm Pharmaceuticals, Inc., filed at the USPTO on May 11, 2026. It is registered and covers classes 5 and 16.

View Rhythm Pharmaceuticals, Inc. portfolio Get this data via the API

Data current as of October 28, 2026Official USPTO record

As filed with the USPTO

Status: Registered; Since October 13, 2026
Filed: May 11, 2026
Registered: October 13, 2026
Expires: Not recorded
Application no.: 99815478
Registration no.: 8502150
Office: USPTO; United States Patent and Trademark Office
Mark type: Word mark; 2 classes

Ownership

Who owns RHYTHM

The owner on file, matched to the company behind it. Every owner-name spelling for that company is grouped on its page.

Owner

Rhythm Pharmaceuticals, Inc.

RYTM · Boston, United States

29 trademarks in the portfolioView company

Representative

Peter G. Byrne

Pranger Law PC

Goods and services

What the mark covers

The products and services RHYTHM is filed for, grouped by Nice class.

05Class 5 · Pharmaceuticals
Diagnostic kits comprised of medical diagnostic reagents and assays for testing of bodily fluids for use in disease detection, namely, rare obesity
16Class 16 · Paper Goods and Printed Matter
Printed instructional materials in the field of genetic testing relevant to obesity

History

What has happened so far

Steps recorded by the USPTO, newest first.

October 13, 2026Notice of registration confirmation emailed
October 13, 2026Registered-principal register
August 25, 2026Official gazette publication confirmation e-mailed
August 25, 2026Published for opposition
August 19, 2026Notification of notice of publication e-mailed
July 28, 2026Approved for pub - principal register
July 27, 2026Assigned to examiner
May 11, 2026Application filing receipt mailed
May 11, 2026New application office supplied data entered
May 11, 2026New application entered

FAQ

About RHYTHM

Who owns the trademark "RHYTHM"?

The USPTO trademark "RHYTHM" (application 99815478) is owned by Rhythm Pharmaceuticals, Inc.

What is the status of "RHYTHM"?

Its status at the USPTO is: registered.

When was "RHYTHM" registered?

It was registered on October 13, 2026.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull RHYTHM and marks like it into your own product with one request.

GET/v1/trademarks/{id}
The full record: owners, classes, dates and images
GET/v1/trademarks/{id}/events
Every step in the office history
GET/v1/proceedings?trademark_id={id}
Oppositions and cancellations against the mark

Get API key View docs

GET /v1/trademarks/{id}

ID=tm_019e2904-25a5-711f-b99a-d893135a074c
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "tm_019e2904-25a5-711f-b99a-d893135a074c",
  "object": "trademark",
  "mark_text": "RHYTHM",
  "status": {
    "primary": "active",
    "stage": "registered"
  },
  "office_code": "US",
  "application_number": "99815478",
  "filing_date": "2026-05-11",
  "nice_classes": [
    5,
    16
  ],
  "owners": [
    {
      "name": "Rhythm Pharmaceuticals, Inc.",
      "entity_id": "ent_019f286b-6f5f-7229-98a0-dc07963eab7a"
    }
  ]
}