Trademark Search

Business & KYB

Look up registered and pending trademarks by name, application number or owner.

Search the trademark registry for a word mark or application number and receive the status, class, applicant and key dates, so brand onboarding and marketplace listings avoid infringing marks.

Endpoint

POST https://app.emver.io/api/sandbox/v1/trademark-search

Authorization: Bearer YOUR_API_KEY

Content-Type: application/json

Accept: application/json

Request parameters

Field	Type	Description
`query` required	string	Word mark or application number
`class` optional	number	Trademark class

Example request

cURL

curl -X POST https://app.emver.io/api/sandbox/v1/trademark-search \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json" \
  -d '{
    "query": "string",
    "class": 0
}'

import requests

response = requests.post(
    "https://app.emver.io/api/sandbox/v1/trademark-search",
    headers={
        "Authorization": "Bearer YOUR_API_KEY",
        "Accept": "application/json",
    },
    json={
        "query": "string",
        "class": 0
    },
    timeout=60,
)
response.raise_for_status()
data = response.json()

const response = await fetch("https://app.emver.io/api/sandbox/v1/trademark-search", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json",
    "Accept": "application/json",
  },
  body: JSON.stringify({
      "query": "string",
      "class": 0
  }),
});

const data = await response.json();

$response = Http::withToken('YOUR_API_KEY')
    ->acceptJson()
    ->post('https://app.emver.io/api/sandbox/v1/trademark-search', {
        "query": "string",
        "class": 0
    });

$data = $response->json();

Replace YOUR_API_KEY and the placeholder values. Use the switch above to see production URLs.

Response

Structure · 200

{
  "status": INTEGER,
  "message": STRING,
  "data": {
    "results": ARRAY
  }
}

Example · 200

{
  "status": 200,
  "message": "string",
  "data": {
    "results": "string"
  }
}

Error · 4xx / 5xx

{
  "status": INTEGER,
  "message": STRING
}

See Errors & status codes for what each status means and which calls are billed.

About this API

Send a mark or application number, optionally with a class. The API returns the matching applications with their status (registered, objected, opposed, abandoned), owner and dates.

Typical uses

Marketplace brand registry. Verify ownership before granting brand-gated listings.
IP-backed lending. Confirm the registered marks pledged as collateral.

Questions

Are device (logo) marks searchable?: By application number and owner, yes; visual similarity search is not part of this API.