USPTO trademark

SIGMA

RegisteredUSPTOWord markClass 7Class 10

"SIGMA" is a word mark owned by Amada Weld Tech Inc., filed at the USPTO on November 23, 2016. It is registered and covers classes 7 and 10.

Get this data via the API
Official USPTO record
SIGMA trademark as filed
As filed with the USPTO
Status
Registered
Since July 18, 2025
Filed
November 23, 2016
Registered
September 18, 2018
Expires
Not recorded
Application no.
87246936
Registration no.
5563439
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
2 classes
Ownership

Who owns SIGMA

The owner and representative on file with the office.

Owner

Amada Weld Tech Inc.

Monrovia, United States

Representative

Art Hasan

Womble Bond Dickinson (Us) LLP

Goods and services

What the mark covers

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

  • LASER MACHINES AND MACHINE SYSTEMS COMPRISED OF LASERS AND LASER WORKSTATIONS COMPRISED OF LASERS FOR MICROMACHINING, MARKING, CUTTING, DRILLING, MILLING, PATTERNING, SCRIBING AND LASER ABLATION

  • LASERS FOR MEDICAL PURPOSES, NAMELY, LASER MACHINES AND MACHINE SYSTEMS COMPRISED OF LASERS AND LASER WORKSTATIONS COMPRISED OF LASERS FOR MICROMACHINING, MARKING, CUTTING, DRILLING, MILLING, PATTERNING, SCRIBING AND LASER ABLATION; LASERS FOR MEDICAL PURPOSES, NAMELY, LASER CUTTING SYSTEM COMPRISED OF LASERS AND LASER WORKSTATIONS COMPRISED OF LASERS AND APPARATUS FOR USE WITH LASER MICRO CUTTING AND LASER ABLATION OF MEDICAL STENTS AND TUBES

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Notice of acceptance of sec. 8 & 15 - e-mailed
  2. Registered - sec. 8 (6-yr) accepted & sec. 15 ack.
  3. Case assigned to post registration paralegal
  4. Teas section 8 & 15 received
  5. Courtesy reminder - sec. 8 (6-yr) e-mailed
  6. Automatic update of assignment of ownership
  7. Registered-principal register
  8. Extension of time to oppose process - terminated
  9. Extension of time to oppose received
  10. Official gazette publication confirmation e-mailed

10 earlier steps on the official record.

FAQ

About SIGMA

Who owns the trademark "SIGMA"?

The USPTO trademark "SIGMA" (application 87246936) is owned by Amada Weld Tech Inc.

What is the status of "SIGMA"?

Its status at the USPTO is: registered.

When was "SIGMA" registered?

It was registered on September 18, 2018.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull SIGMA 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_019d2b50-0967-77ec-9618-dc45c557e0e5
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019d2b50-0967-77ec-9618-dc45c557e0e5",
  "object": "trademark",
  "mark_text": "SIGMA",
  "status": {
    "primary": "active",
    "stage": "registered"
  },
  "office_code": "US",
  "application_number": "87246936",
  "filing_date": "2016-11-23",
  "nice_classes": [
    7,
    10
  ],
  "owners": [
    {
      "name": "AMADA WELD TECH INC.",
      "entity_id": null
    }
  ]
}