USPTO trademark

HEME DUO

Under examinationUSPTOWord markClass 5

"HEME DUO" is a word mark owned by StealthCo, Inc., filed at the USPTO on October 20, 2026. It is under examination and covers class 5 (Pharmaceuticals).

Get this data via the API
Official USPTO record
HEME DUO trademark as filed
As filed with the USPTO
Status
Under examination
Since October 20, 2026
Filed
October 20, 2026
Registered
Not yet
Expires
Not recorded
Application no.
50172032
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
1 class
Ownership

Who owns HEME DUO

The owner and representative on file with the office.

Owner

StealthCo, Inc.

Toronto, United States

Representative

Muzamil Huq

Morrison & Foerster LLP

Goods and services

What the mark covers

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

  • Pharmaceutical preparations for delivering oxygen to organs for purposes of organ preservation; pharmaceutical preparations for use in organ preservation and transplantation; organ preservation solutions for medical purposes

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Application filing receipt mailed
  2. New application office supplied data entered
  3. New application entered
FAQ

About HEME DUO

Who owns the trademark "HEME DUO"?

The USPTO trademark "HEME DUO" (application 50172032) is owned by StealthCo, Inc.

What is the status of "HEME 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 HEME 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_01a15e93-c5ad-7498-af6e-595b8381d07c
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_01a15e93-c5ad-7498-af6e-595b8381d07c",
  "object": "trademark",
  "mark_text": "HEME DUO",
  "status": {
    "primary": "pending",
    "stage": "examining"
  },
  "office_code": "US",
  "application_number": "50172032",
  "filing_date": "2026-10-20",
  "nice_classes": [
    5
  ],
  "owners": [
    {
      "name": "StealthCo, Inc.",
      "entity_id": null
    }
  ]
}