USPTO trademark

KOSS

RegisteredUSPTOWord and designClass 9

"KOSS" is a word and design mark owned by Koss Corporation, filed at the USPTO on January 28, 1974. It is registered and covers class 9 (Computers and Scientific Devices).

View Koss Corporation portfolio Get this data via the API

Data current as of October 15, 2026Official USPTO record

As filed with the USPTO

Status: Registered; Since August 4, 2024
Filed: January 28, 1974
Registered: May 13, 1975
Expires: Not recorded
Application no.: 73012098
Registration no.: 1010346
Office: USPTO; United States Patent and Trademark Office
Mark type: Word and design; 1 class

Ownership

Who owns KOSS

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

Owner

Koss Corporation

KOSS · Milwaukee, United States

127 trademarks in the portfolioView company

Representative

Sana Hakim

K&L Gates LLP

Goods and services

What the mark covers

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

09Class 9 · Computers and Scientific Devices
[ INDUSTRIAL SAFETY HEARING PROTECTIVE HEADSETS AND ] STEREOPHONES MANUFACTURED BY APPLICANT, AND RELATED ACCESSORIES MANUFACTURED BY APPLICANT, TO-WIT: STEREOPHONE PLUG ADAPTORS, STEREOPHONE MONAURAL ADAPTORS, STEREOPHONE REPLACEMENT CUSHION SETS, COILED STEREOPHONE EXTENSION CORDS, [ STEREOPHONE SPEAKER SWITCHES, ] STEREOPHONE EXTENSION CABLES, STEREOPHONE PIN-TYPE ADAPTORS, STEREOPHONE PIN-TYPE EXTENSION CORDS [, CHAIR-SIDE STATIONS, REMOTE CONTROL STATIONS, AND STEREOPHONE CONNECTOR BOXES ]

History

What has happened so far

Steps recorded by the USPTO, newest first.

August 4, 2024Notice of acceptance of sec. 8 & 9 - e-mailed
August 4, 2024Registered and renewed (fourth renewal - 10 yrs)
August 4, 2024Registered - sec. 8 (10-yr) accepted/sec. 9 granted
August 4, 2024Case assigned to post registration paralegal
May 15, 2024Teas section 8 & 9 received
May 13, 2024Courtesy reminder - sec. 8 (10-yr)/sec. 9 e-mailed
May 17, 2014Notice of acceptance of sec. 8 & 9 - e-mailed
May 17, 2014Registered and renewed (third renewal - 10 yrs)
May 17, 2014Registered - sec. 8 (10-yr) accepted/sec. 9 granted
May 15, 2014Registered - combined section 8 (10-yr) & sec. 9 filed

10 earlier steps on the official record.

Disputes

Oppositions and cancellations

Proceedings recorded against this mark by the USPTO. Reported as recorded, not legal advice.

FAQ

About KOSS

Who owns the trademark "KOSS"?

The USPTO trademark "KOSS" (application 73012098) is owned by Koss Corporation.

What is the status of "KOSS"?

Its status at the USPTO is: registered.

When was "KOSS" registered?

It was registered on May 13, 1975.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull KOSS 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_019d1566-ac17-75aa-bd01-260f61417a0a
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"

Response

{
  "id": "tm_019d1566-ac17-75aa-bd01-260f61417a0a",
  "object": "trademark",
  "mark_text": "KOSS",
  "status": {
    "primary": "active",
    "stage": "registered"
  },
  "office_code": "US",
  "application_number": "73012098",
  "filing_date": "1974-01-28",
  "nice_classes": [
    9
  ],
  "owners": [
    {
      "name": "KOSS CORPORATION",
      "entity_id": "ent_019ebc07-3105-754a-9550-f65254b6970b"
    }
  ]
}