---
title: "Trademark Owners"
method: GET
path: "/trademarks/owners"
tags: ["Trademarks"]
---

# Trademark Owners

`GET /trademarks/owners`

## Request

- Base URL: `https://api.dataporium.io`
- URL: `https://api.dataporium.io/trademarks/owners`
- Auth: API key in query parameter `apikey`

Find trademark owners (companies and other organizations with several filings since 2000, and every owner linked to a listed company) by name, ticker, country or state. /trademarks/owners/{owner} gives one owner with its years and top classes.

The answer is {total, rows: [{owner_id, slug, name, country, state, ticker, listed_company, applications, registrations, first_year, last_year}], data_through, about}. /trademarks/totals gives all filers (also individuals, not named) by year or class, and /trademarks/classes the 45 classes with plain names.

## Query parameters

- `q` string
- `ticker` string
- `country` string
- `state` string
- `listed_only` boolean
- `sort` string
- `limit` integer

## Response `200`

Successful response (JSON).

- object

## Other responses

- `401`: No API key in the request.
- `403`: The API key is not valid or has expired.

---

[API](https://skmtc.dev/dataporium/apis/dataporium-data-api.md) · [All operations](https://skmtc.dev/dataporium/apis/dataporium-data-api/llms.txt) · [OpenAPI document](https://skmtc.dev/dataporium/apis/dataporium-data-api/revisions/8bc593179dc8?raw)