USPTO trademark

DSU

RegisteredUSPTOWord markClass 5

"DSU" is a word mark owned by Sysmex Corporation, filed at the USPTO on February 21, 2024. It is registered and covers class 5 (Pharmaceuticals).

View Sysmex Corporation portfolio Get this data via the API

Data current as of November 25, 2025Official USPTO record

As filed with the USPTO

Status: Registered; Since November 25, 2025
Filed: February 21, 2024
Registered: November 25, 2025
Priority date: November 20, 2023; Claimed from Japan
Application no.: 98413798
Registration no.: 8036412
Office: USPTO; United States Patent and Trademark Office
Mark type: Word mark; 1 class

Ownership

Who owns DSU

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

Owner

Sysmex Corporation

Kobe, Hyogo, Japan

593 trademarks in the portfolioView company

Representative

Laura K. Russell

Crowell & Moring LLP

Goods and services

What the mark covers

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

05Class 5 · Pharmaceuticals
In vitro diagnostic preparations for medical purposes; clinical medical reagents for clinical testing for medical or veterinary purposes; diagnostic reagents for medicinal use; chemical reagents for medical or veterinary purposes; reagents for blood analysis for medical or veterinary purposes, namely, reagents for identification, counting or analysis of blood cell for medical or veterinary purposes; medical or veterinary diagnostic reagents for hematology analysis; medical or veterinary diagnostic reagents, namely sheath solutions; medical or veterinary diagnostic reagents for blood analysis, namely sheath solutions; diluents for medical or clinical diagnostic use; and diluents for blood analysis for medical or veterinary purposes.

History

What has happened so far

Steps recorded by the USPTO, newest first.

November 25, 2025Notice of registration confirmation emailed
November 25, 2025Registered-principal register
November 4, 20251(b) basis deleted; proceed to registration
November 4, 2025Case assigned to intent to use paralegal
March 25, 2025Notice of allowance cancelled
March 25, 2025Teas delete 1(b) basis received
November 26, 2024Noa e-mailed - sou required from applicant
October 15, 2024Official gazette publication confirmation e-mailed
October 15, 2024Published for opposition
September 25, 2024Notification of notice of publication e-mailed

10 earlier steps on the official record.

FAQ

About DSU

Who owns the trademark "DSU"?

The USPTO trademark "DSU" (application 98413798) is owned by Sysmex Corporation.

What is the status of "DSU"?

Its status at the USPTO is: registered.

When was "DSU" registered?

It was registered on November 25, 2025.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull DSU 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 key View docs

GET /v1/trademarks/{id}

ID=tm_019d2c9e-b868-766c-a189-e8b6a6b86210
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "tm_019d2c9e-b868-766c-a189-e8b6a6b86210",
  "object": "trademark",
  "mark_text": "DSU",
  "status": {
    "primary": "active",
    "stage": "registered"
  },
  "office_code": "US",
  "application_number": "98413798",
  "filing_date": "2024-02-21",
  "nice_classes": [
    5
  ],
  "owners": [
    {
      "name": "Sysmex Corporation",
      "entity_id": "ent_019eb6f8-8ecc-7772-9815-596f843c2dce"
    }
  ]
}