USPTO trademark

KROFF

Opposition periodUSPTOWord markClass 1Class 4Class 9Class 11+1

"KROFF" is a word mark owned by Kroff, Inc., filed at the USPTO on April 20, 2026. It is in its opposition period and covers classes 1, 4, 9, 11 and 40.

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Official USPTO record
KROFF trademark as filed
As filed with the USPTO
Status
Opposition period
Since September 29, 2026
Filed
April 20, 2026
Registered
Not yet
Expires
Not recorded
Application no.
99775505
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
5 classes
Ownership

Who owns KROFF

The owner and representative on file with the office.

Owner

Kroff, Inc.

Pittsburgh, United States

Representative

Alan G. Towner

Leech Tishman Fuscaldo & Lampl

Goods and services

What the mark covers

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

  • Chemicals for the treatment of cooling water systems; Chemical preparations for use in soil remediation, drinking water treatment, municipal and industrial wastewater treatment; Chemicals for the treatment of water and wastewater; Waste water treatment chemicals for industrial use; Chemicals for the treatment of hot water systems; Chemicals for use in water treatment; Bacteria for waste water treatment; Activated carbons for water treatment; Quenching fluids for use in metalworking; Metal plating chemical compositions; Chemical compositions for metal plating

  • Metalworking cutting oils; Metalworking cutting fluids; Drilling lubricants

  • Electronic apparatus, namely, control systems used to control chemical addition and water quality in industrial and commercial water systems; Electronic apparatus for use in the treatment of aqueous systems, namely, for analysis of the system conditions for the purpose of applying the appropriate chemical treatment

  • Water treatment equipment, namely, chemical feeders; Chlorinating units for water treatment; Chlorine generators for water treatment

  • Consulting services in the field of waste water treatment; Consulting services in the field of water treatment; Continuous biological water treatment services; Biological waste water treatment services; Waste water treatment services; Waste water treatment services for industrial purposes; Water treatment and purification; Treatment of waste water; Treatment of water; Treatment of waste water from industrial processes; Treatment of waste water in the field of environmental pollution control

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. Official gazette publication confirmation e-mailed
  2. Published for opposition
  3. Notification of notice of publication e-mailed
  4. Approved for pub - principal register
  5. Assigned to examiner
  6. New application office supplied data entered
  7. Application filing receipt mailed
  8. New application entered
FAQ

About KROFF

Who owns the trademark "KROFF"?

The USPTO trademark "KROFF" (application 99775505) is owned by Kroff, Inc.

What is the status of "KROFF"?

Its status at the USPTO is: opposition period.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull KROFF 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_019db7f0-489f-70db-b151-cc1be6ec8d75
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_019db7f0-489f-70db-b151-cc1be6ec8d75",
  "object": "trademark",
  "mark_text": "KROFF",
  "status": {
    "primary": "pending",
    "stage": "pending_opposition"
  },
  "office_code": "US",
  "application_number": "99775505",
  "filing_date": "2026-04-20",
  "nice_classes": [
    1,
    4,
    9,
    11,
    40
  ],
  "owners": [
    {
      "name": "Kroff, Inc.",
      "entity_id": null
    }
  ]
}