USPTO trademark

CLEAN FLOW

RegisteredUSPTOWord markClass 11

"CLEAN FLOW" is a word mark owned by STERIS Corporation, filed at the USPTO on April 23, 2021. It is registered and covers class 11 (Environmental Control Apparatus).

View STERIS Corporation portfolio Get this data via the API

Data current as of November 5, 2025Official USPTO record

As filed with the USPTO

Status: Registered; Since November 15, 2022
Filed: April 23, 2021
Registered: November 15, 2022
Expires: Not recorded
Application no.: 90666694
Registration no.: 6902494
Office: USPTO; United States Patent and Trademark Office
Mark type: Word mark; 1 class

Ownership

Who owns CLEAN FLOW

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

Owner

STERIS Corporation

STE · Mentor, United States

251 trademarks in the portfolioView company

Representative

Russell Wheatley

STERIS Corporation

Goods and services

What the mark covers

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

11Class 11 · Environmental Control Apparatus
a stainless steel filter housing unit having a filter element and a condensate drain for use in the removal of solid and liquid contaminants from a steam supply line

History

What has happened so far

Steps recorded by the USPTO, newest first.

November 5, 2025Teas withdrawal of attorney received-firm retains
November 5, 2025Teas change of correspondence received
November 5, 2025Attorney/dom.rep.revoked and/or appointed
November 5, 2025Teas revoke/app/change addr of atty/dom rep received
November 15, 2022Notice of registration confirmation emailed
November 15, 2022Registered-principal register
October 11, 2022Notice of acceptance of statement of use e-mailed
October 10, 2022Allowed principal register - sou accepted
September 23, 2022Statement of use processing complete
September 23, 2022Case assigned to intent to use paralegal

10 earlier steps on the official record.

FAQ

About CLEAN FLOW

Who owns the trademark "CLEAN FLOW"?

The USPTO trademark "CLEAN FLOW" (application 90666694) is owned by STERIS Corporation.

What is the status of "CLEAN FLOW"?

Its status at the USPTO is: registered.

When was "CLEAN FLOW" registered?

It was registered on November 15, 2022.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull CLEAN FLOW 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_019d2d43-1cf8-707d-a080-b2afe63a6ced
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "tm_019d2d43-1cf8-707d-a080-b2afe63a6ced",
  "object": "trademark",
  "mark_text": "CLEAN FLOW",
  "status": {
    "primary": "active",
    "stage": "registered"
  },
  "office_code": "US",
  "application_number": "90666694",
  "filing_date": "2021-04-23",
  "nice_classes": [
    11
  ],
  "owners": [
    {
      "name": "STERIS Corporation",
      "entity_id": "ent_019f286d-9f34-75ea-baac-d9411e64f8cd"
    }
  ]
}