USPTO trademark

DUO

Under examinationUSPTOFigurative markClass 9

"DUO" is a figurative mark owned by HP Tuners LLC, filed at the USPTO on August 18, 2026. It is under examination and covers class 9 (Computers and Scientific Devices).

View HP Tuners LLC portfolioGet this data via the API
Official USPTO record
DUO trademark as filed
As filed with the USPTO
Status
Under examination
Since August 18, 2026
Filed
August 18, 2026
Registered
Not yet
Expires
Not recorded
Application no.
50057413
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Figurative mark
1 class
Ownership

Who owns DUO

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

Owner

HP Tuners LLC

Buffalo Grove, United States

53 trademarks in the portfolioView company

Representative

Paul C. Llewellyn

Arnold & Porter Kaye Scholer LLP

Goods and services

What the mark covers

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

  • Electronic hardware and electronic interface devices to allow computers and mobile devices to communicate with vehicles; electronic hardware and electronic interface devices for automotive tuning and diagnosis; automotive testing, diagnosis and tuning equipment

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Application filing receipt mailed
  2. New application entered
FAQ

About DUO

Who owns the trademark "DUO"?

The USPTO trademark "DUO" (application 50057413) is owned by HP Tuners LLC.

What is the status of "DUO"?

Its status at the USPTO is: under examination.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull DUO 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 keyView docs
GET /v1/trademarks/{id}
ID=tm_01a01a22-e710-74f8-8305-222e49f4567a
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_01a01a22-e710-74f8-8305-222e49f4567a",
  "object": "trademark",
  "mark_text": "DUO",
  "status": {
    "primary": "pending",
    "stage": "examining"
  },
  "office_code": "US",
  "application_number": "50057413",
  "filing_date": "2026-08-18",
  "nice_classes": [
    9
  ],
  "owners": [
    {
      "name": "HP Tuners LLC",
      "entity_id": "ent_019ebbd7-56f5-730b-9db8-1690fd40ab50"
    }
  ]
}