USPTO trademark

SIENA

Under examinationUSPTOWord markClass 42Class 44

"SIENA" is a word mark owned by Dexcom, Inc., filed at the USPTO on September 21, 2026. It is under examination and covers classes 42 and 44.

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Official USPTO record
SIENA trademark as filed
As filed with the USPTO
Status
Under examination
Since September 21, 2026
Filed
September 21, 2026
Registered
Not yet
Priority date
March 27, 2026
Claimed from Trinidad & Tobago
Application no.
50120488
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
2 classes
Ownership

Who owns SIENA

The owner and representative on file with the office.

Owner

Dexcom, Inc.

San Diego, United States

Representative

Gina Durham, Esq.

DLA Piper LLP (US)

Goods and services

What the mark covers

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

  • Providing temporary use of online non-downloadable computer chatbot software for simulating conversations; providing temporary use of online non-downloadable computer chatbot software for simulating conversations with users regarding health, nutrition, and wellness; Software as a service (SaaS) services featuring software for use as an AI (artificial intelligence) health coach; software as a service (SaaS) services featuring software for providing personalized health, nutrition, and lifestyle recommendations based on continuous glucose monitor data; software as a service (SaaS) services featuring software in the nature of an AI (artificial intelligence) virtual health coach chatbot in the fields of glucose monitoring, nutrition, health, wellbeing, and lifestyle; providing temporary use of online non-downloadable computer software for use as an AI (artificial intelligence) health coach in connection with continuous glucose monitors; providing temporary use of online non-downloadable computer software using AI (artificial intelligence) for delivering health coaching expertise in the nature of an AI virtual health coach; providing temporary use of online non-downloadable computer software using AI (artificial intelligence) for delivering health and wellness guidance in the nature of an AI virtual assistant chatbot in the fields of glucose monitoring, nutrition, health, wellbeing, and lifestyle

  • Provision of health information in the fields of glucose monitoring, nutrition, health, wellbeing, and lifestyle

History

What has happened so far

Steps recorded by the USPTO, newest first.

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

About SIENA

Who owns the trademark "SIENA"?

The USPTO trademark "SIENA" (application 50120488) is owned by Dexcom, Inc.

What is the status of "SIENA"?

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 SIENA 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_01a0c93f-ab30-729c-ad49-106b38dc375d
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_01a0c93f-ab30-729c-ad49-106b38dc375d",
  "object": "trademark",
  "mark_text": "SIENA",
  "status": {
    "primary": "pending",
    "stage": "examining"
  },
  "office_code": "US",
  "application_number": "50120488",
  "filing_date": "2026-09-21",
  "nice_classes": [
    42,
    44
  ],
  "owners": [
    {
      "name": "Dexcom, Inc.",
      "entity_id": null
    }
  ]
}