Trademark knock-out check with live official verification
Trademark knock-out check with live official verification: name in, conflict risk verdict out. Candidate conflicting marks are looked up in the USPTO TSDR system in real time and returned as verbatim official records (LIVE/DEAD status, owner, classes, dates) — research leads that could not be officially verified are labeled as such. US federal register; names the right register for non-US markets. Call before you commit to a name.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
339 msmedian answer time
$0.5listed price per call
$0.5price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://legalpulse.theaslangroupllc.com/api/legal/trademark-check
| Category | Search and research |
|---|---|
| Provider host | legalpulse.theaslangroupllc.com |
| Networks | algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k, eip155:137, eip155:143, eip155:196, eip155:42161, eip155:480, eip155:56, eip155:8453, eip155:999, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, xrpl:0 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.5 | 339 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"goods": {
"description": "what it will be sold as \u2014 sharpens likelihood-of-confusion class analysis",
"type": "string"
},
"mark": {
"description": "the brand/product name to check",
"type": "string"
},
"serial": {
"description": "optional CSV of known USPTO serial/registration numbers to verify directly",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"errors": {
"additionalProperties": {
"properties": {
"description": {
"type": "string"
},
"example": {
"type": "object"
}
},
"required": [
"description"
],
"type": "object"
},
"description": "Documented error responses, keyed by HTTP status code",
"type": "object"
},
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}