USPTO trademark

POWERSTONE

Under examinationUSPTOWord markClass 9

"POWERSTONE" is a word mark owned by Enpower Greentech (Peking) Inc., filed at the USPTO on July 15, 2026. It is under examination and covers class 9 (Computers and Scientific Devices).

Get this data via the API
Official USPTO record
POWERSTONE trademark as filed
As filed with the USPTO
Status
Under examination
Since July 15, 2026
Filed
July 15, 2026
Registered
Not yet
Expires
Not recorded
Application no.
99942446
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
1 class
Ownership

Who owns POWERSTONE

The owner and representative on file with the office.

Owner

Enpower Greentech (Peking) Inc.

Beijing, China

Representative

Mark N. Melasky

Intellectual Property Consulting, LLC

Goods and services

What the mark covers

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

  • Batteries, electric; Batteries, electric, for vehicles; Accumulators, electric; Rechargeable batteries; Anode batteries; Battery boxes; Ignition batteries; Charging stations for electric vehicles; Portable power chargers; Galvanic batteries

History

What has happened so far

Steps recorded by the USPTO, newest first.

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

About POWERSTONE

Who owns the trademark "POWERSTONE"?

The USPTO trademark "POWERSTONE" (application 99942446) is owned by Enpower Greentech (Peking) Inc.

What is the status of "POWERSTONE"?

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 POWERSTONE 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_019f6b0a-e071-7168-9d00-57e67ccc18b8
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019f6b0a-e071-7168-9d00-57e67ccc18b8",
  "object": "trademark",
  "mark_text": "POWERSTONE",
  "status": {
    "primary": "pending",
    "stage": "examining"
  },
  "office_code": "US",
  "application_number": "99942446",
  "filing_date": "2026-07-15",
  "nice_classes": [
    9
  ],
  "owners": [
    {
      "name": "Enpower Greentech (Peking) Inc.",
      "entity_id": null
    }
  ]
}