USPTO trademark

LEADLONG

Awaiting publicationUSPTOWord markClass 11

"LEADLONG" is a word mark owned by Siterwell Electronics Co., Limited, filed at the USPTO on June 8, 2026. It is waiting to be published and covers class 11 (Environmental Control Apparatus).

View Siterwell Electronics Co., Limited portfolioGet this data via the API
Official USPTO record
LEADLONG trademark as filed
As filed with the USPTO
Status
Awaiting publication
Since October 19, 2026
Filed
June 8, 2026
Registered
Not yet
Expires
Not recorded
Application no.
99870661
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
1 class
Ownership

Who owns LEADLONG

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

Owner

Siterwell Electronics Co., Limited

Ningbo, Zhejiang, China

33 trademarks in the portfolioView company

Representative

Utsav Mukherjee

One Juris PC

Goods and services

What the mark covers

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

  • Thermostatic valves as parts of heating installations; Heating installations; Dampers, namely, control devices used in air ducts to regulate the flow of air; Heat exchangers for chemical processing; Heat exchangers, other than parts of machines; Heating filaments, electric; Radiators; Hot air heating apparatus; Air-conditioning apparatus

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Approved for pub - principal register
  2. Assigned to examiner
  3. New application office supplied data entered
  4. Application filing receipt mailed
  5. New application entered
FAQ

About LEADLONG

Who owns the trademark "LEADLONG"?

The USPTO trademark "LEADLONG" (application 99870661) is owned by Siterwell Electronics Co., Limited.

What is the status of "LEADLONG"?

Its status at the USPTO is: awaiting publication.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull LEADLONG 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_019eaff8-f409-762c-93a4-50090859b3a3
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019eaff8-f409-762c-93a4-50090859b3a3",
  "object": "trademark",
  "mark_text": "LEADLONG",
  "status": {
    "primary": "pending",
    "stage": "pending_publication"
  },
  "office_code": "US",
  "application_number": "99870661",
  "filing_date": "2026-06-08",
  "nice_classes": [
    11
  ],
  "owners": [
    {
      "name": "SITERWELL ELECTRONICS CO., LIMITED",
      "entity_id": "ent_019ee96d-3552-743d-b747-b1daa637e03a"
    }
  ]
}