USPTO trademark

DEFTREE

Under examinationUSPTOFigurative markClass 9

"DEFTREE" is a figurative mark owned by Wenjun Han, filed at the USPTO on October 1, 2026. It is under examination and covers class 9 (Computers and Scientific Devices).

Get this data via the API
Official USPTO record
DEFTREE trademark as filed
As filed with the USPTO
Status
Under examination
Since October 1, 2026
Filed
October 1, 2026
Registered
Not yet
Expires
Not recorded
Application no.
50139398
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Figurative mark
1 class
Ownership

Who owns DEFTREE

The owner and representative on file with the office.

Owner

Wenjun Han

Wuhai Inner Mongolia Autonomous Region, China

Representative

Lowell Lee Carson Jr

Polymath IP Counsel, LLC

Goods and services

What the mark covers

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

History

What has happened so far

Steps recorded by the USPTO, newest first.

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

About DEFTREE

Who owns the trademark "DEFTREE"?

The USPTO trademark "DEFTREE" (application 50139398) is owned by Wenjun Han.

What is the status of "DEFTREE"?

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 DEFTREE 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_01a0fcc4-28d2-745c-94df-1a4a202f62a3
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_01a0fcc4-28d2-745c-94df-1a4a202f62a3",
  "object": "trademark",
  "mark_text": "DEFTREE",
  "status": {
    "primary": "pending",
    "stage": "examining"
  },
  "office_code": "US",
  "application_number": "50139398",
  "filing_date": "2026-10-01",
  "nice_classes": [
    9
  ],
  "owners": [
    {
      "name": "Wenjun Han",
      "entity_id": null
    }
  ]
}