USPTO trademark

Z CORE

Under examinationUSPTOWord markClass 10

"Z CORE" is a word mark owned by Jongju Na, filed at the USPTO on January 21, 2026. It is under examination and covers class 10 (Medical Apparatus).

Get this data via the API
Official USPTO record
Z CORE trademark as filed
As filed with the USPTO
Status
Under examination
Since June 18, 2026
Filed
January 21, 2026
Registered
Not yet
Priority date
August 15, 2025
Claimed from South Korea
Application no.
99605858
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
1 class
Ownership

Who owns Z CORE

The owner and representative on file with the office.

Owner

Jongju Na

Seoul, South Korea

Representative

Marek Krizka

Sparring Legal LLP

Goods and services

What the mark covers

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

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Notification of letter of suspension e-mailed
  2. Letter of suspension e-mailed
  3. Suspension letter written
  4. Assigned to examiner
  5. New application office supplied data entered
  6. Teas change of correspondence received
  7. Attorney/dom.rep.revoked and/or appointed
  8. Teas revoke/app/change addr of atty/dom rep received
  9. Teas change of correspondence received
  10. Attorney/dom.rep.revoked and/or appointed

3 earlier steps on the official record.

FAQ

About Z CORE

Who owns the trademark "Z CORE"?

The USPTO trademark "Z CORE" (application 99605858) is owned by Jongju Na.

What is the status of "Z CORE"?

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 Z CORE 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_019d2b8f-f70d-771d-9443-2fe65dc0dc34
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019d2b8f-f70d-771d-9443-2fe65dc0dc34",
  "object": "trademark",
  "mark_text": "Z CORE",
  "status": {
    "primary": "pending",
    "stage": "examining"
  },
  "office_code": "US",
  "application_number": "99605858",
  "filing_date": "2026-01-21",
  "nice_classes": [
    10
  ],
  "owners": [
    {
      "name": "Jongju Na",
      "entity_id": null
    }
  ]
}