USPTO trademark

PROFESSORLIN.COM

RegisteredUSPTOWord markClass 44

"PROFESSORLIN.COM" is a word mark owned by Ching Lin, filed at the USPTO on April 26, 2025. It is registered and covers class 44 (Medical, Beauty, and Agricultural).

Get this data via the API
Official USPTO record
PROFESSORLIN.COM trademark as filed
As filed with the USPTO
Status
Registered
Since December 2, 2025
Filed
April 26, 2025
Registered
December 2, 2025
Expires
Not recorded
Application no.
99156774
Registration no.
8051526
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
1 class
Ownership

Who owns PROFESSORLIN.COM

The owner and representative on file with the office.

Owner

Ching Lin

Lake Forest, United States

Representative

Jackie Lin

Goods and services

What the mark covers

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

  • Providing healthcare information; Providing educational information about healthcare; Providing a web site featuring information on health and nutrition; Providing educational information about nutrition via a website; Providing health information; Providing on-line information, news and commentary in the field of health and wellness relating to debunking pseudoscience and misleading health claims using science-backed evidence

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Notice of registration confirmation emailed
  2. Registered-principal register
  3. Official gazette publication confirmation e-mailed
  4. Published for opposition
  5. Notification of notice of publication e-mailed
  6. Approved for pub - principal register
  7. Teas/email correspondence entered
  8. Correspondence received in law office
  9. Teas response to office action received
  10. Notification of non-final action e-mailed

6 earlier steps on the official record.

FAQ

About PROFESSORLIN.COM

Who owns the trademark "PROFESSORLIN.COM"?

The USPTO trademark "PROFESSORLIN.COM" (application 99156774) is owned by Ching Lin.

What is the status of "PROFESSORLIN.COM"?

Its status at the USPTO is: registered.

When was "PROFESSORLIN.COM" registered?

It was registered on December 2, 2025.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull PROFESSORLIN.COM 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_019d2ab8-73d6-71b9-9351-e38e2f30c80b
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019d2ab8-73d6-71b9-9351-e38e2f30c80b",
  "object": "trademark",
  "mark_text": "PROFESSORLIN.COM",
  "status": {
    "primary": "active",
    "stage": "registered"
  },
  "office_code": "US",
  "application_number": "99156774",
  "filing_date": "2025-04-26",
  "nice_classes": [
    44
  ],
  "owners": [
    {
      "name": "Ching Lin",
      "entity_id": null
    }
  ]
}