curl "https://api.signa.so/v1/trademarks/tm_11111111-1111-4111-8111-111111111111/assignments" \
-H "Authorization: Bearer $SIGNA_API_KEY"
{
"object": "list",
"data": [
{
"id": "asg_77777777-7777-4777-8777-777777777777",
"object": "assignment",
"office_code": "US",
"reel_number": "9120",
"frame_number": "0301",
"conveyance_type": "release",
"conveyance_text": "RELEASE OF SECURITY INTEREST",
"recorded_date": "2025-04-18",
"last_update_date": "2025-04-22",
"page_count": 3,
"release_of_reel_number": "9102",
"release_of_frame_number": "0100",
"created_at": "2025-04-18T14:30:00.000Z",
"updated_at": "2025-04-22T18:45:00.000Z",
"correspondent": {
"name": "Loan Collateral Services",
"address1": "500 Delaware Avenue, Suite 720",
"address2": "Wilmington, DE 19801"
},
"parties": [
{
"role": "assignee",
"name": "Northstar Brands LLC",
"owner_id": "own_22222222-2222-4222-8222-222222222222",
"execution_date": "2025-04-10",
"date_acknowledged": null,
"legal_entity_text": "corporation",
"country_code": "US",
"address": {
"lines": ["88 Harbor Point Road"],
"city": "Stamford",
"region": "CT",
"postal_code": "06902",
"country_code": "US",
"formatted": null
}
},
{
"role": "assignor",
"name": "First Continental Bank, N.A.",
"owner_id": "own_44444444-4444-4444-8444-444444444444",
"execution_date": "2025-04-10",
"date_acknowledged": "2025-04-11",
"legal_entity_text": "corporation",
"country_code": "US",
"address": null
}
],
"properties": [
{
"trademark_id": "tm_11111111-1111-4111-8111-111111111111",
"application_number": "98887777",
"registration_number": "6543210",
"ir_number": null,
"mark_text": "NORTHSTAR SUPPLY"
}
]
},
{
"id": "asg_66666666-6666-4666-8666-666666666666",
"object": "assignment",
"office_code": "US",
"reel_number": "9102",
"frame_number": "0100",
"conveyance_type": "security_interest",
"conveyance_text": "SECURITY INTEREST",
"recorded_date": "2024-10-03",
"last_update_date": "2024-10-07",
"page_count": 4,
"release_of_reel_number": null,
"release_of_frame_number": null,
"created_at": "2024-10-03T14:30:00.000Z",
"updated_at": "2024-10-07T18:45:00.000Z",
"correspondent": {
"name": "Loan Collateral Services",
"address1": "500 Delaware Avenue, Suite 720",
"address2": "Wilmington, DE 19801"
},
"parties": [
{
"role": "assignee",
"name": "First Continental Bank, N.A.",
"owner_id": "own_44444444-4444-4444-8444-444444444444",
"execution_date": "2024-09-30",
"date_acknowledged": null,
"legal_entity_text": "corporation",
"country_code": "US",
"address": {
"lines": ["1 Financial Plaza"],
"city": "Hartford",
"region": "CT",
"postal_code": "06103",
"country_code": "US",
"formatted": null
}
},
{
"role": "assignor",
"name": "Northstar Brands LLC",
"owner_id": "own_22222222-2222-4222-8222-222222222222",
"execution_date": "2024-09-30",
"date_acknowledged": "2024-10-01",
"legal_entity_text": "corporation",
"country_code": "US",
"address": null
}
],
"properties": [
{
"trademark_id": "tm_11111111-1111-4111-8111-111111111111",
"application_number": "98887777",
"registration_number": "6543210",
"ir_number": null,
"mark_text": "NORTHSTAR SUPPLY"
}
]
}
],
"has_more": false,
"pagination": {
"cursor": null
},
"request_id": "req_test_fixed"
}
Records
Trademark Assignments
List recorded transfers, liens, and releases for one trademark
GET
/
v1
/
trademarks
/
{id}
/
assignments
curl "https://api.signa.so/v1/trademarks/tm_11111111-1111-4111-8111-111111111111/assignments" \
-H "Authorization: Bearer $SIGNA_API_KEY"
{
"object": "list",
"data": [
{
"id": "asg_77777777-7777-4777-8777-777777777777",
"object": "assignment",
"office_code": "US",
"reel_number": "9120",
"frame_number": "0301",
"conveyance_type": "release",
"conveyance_text": "RELEASE OF SECURITY INTEREST",
"recorded_date": "2025-04-18",
"last_update_date": "2025-04-22",
"page_count": 3,
"release_of_reel_number": "9102",
"release_of_frame_number": "0100",
"created_at": "2025-04-18T14:30:00.000Z",
"updated_at": "2025-04-22T18:45:00.000Z",
"correspondent": {
"name": "Loan Collateral Services",
"address1": "500 Delaware Avenue, Suite 720",
"address2": "Wilmington, DE 19801"
},
"parties": [
{
"role": "assignee",
"name": "Northstar Brands LLC",
"owner_id": "own_22222222-2222-4222-8222-222222222222",
"execution_date": "2025-04-10",
"date_acknowledged": null,
"legal_entity_text": "corporation",
"country_code": "US",
"address": {
"lines": ["88 Harbor Point Road"],
"city": "Stamford",
"region": "CT",
"postal_code": "06902",
"country_code": "US",
"formatted": null
}
},
{
"role": "assignor",
"name": "First Continental Bank, N.A.",
"owner_id": "own_44444444-4444-4444-8444-444444444444",
"execution_date": "2025-04-10",
"date_acknowledged": "2025-04-11",
"legal_entity_text": "corporation",
"country_code": "US",
"address": null
}
],
"properties": [
{
"trademark_id": "tm_11111111-1111-4111-8111-111111111111",
"application_number": "98887777",
"registration_number": "6543210",
"ir_number": null,
"mark_text": "NORTHSTAR SUPPLY"
}
]
},
{
"id": "asg_66666666-6666-4666-8666-666666666666",
"object": "assignment",
"office_code": "US",
"reel_number": "9102",
"frame_number": "0100",
"conveyance_type": "security_interest",
"conveyance_text": "SECURITY INTEREST",
"recorded_date": "2024-10-03",
"last_update_date": "2024-10-07",
"page_count": 4,
"release_of_reel_number": null,
"release_of_frame_number": null,
"created_at": "2024-10-03T14:30:00.000Z",
"updated_at": "2024-10-07T18:45:00.000Z",
"correspondent": {
"name": "Loan Collateral Services",
"address1": "500 Delaware Avenue, Suite 720",
"address2": "Wilmington, DE 19801"
},
"parties": [
{
"role": "assignee",
"name": "First Continental Bank, N.A.",
"owner_id": "own_44444444-4444-4444-8444-444444444444",
"execution_date": "2024-09-30",
"date_acknowledged": null,
"legal_entity_text": "corporation",
"country_code": "US",
"address": {
"lines": ["1 Financial Plaza"],
"city": "Hartford",
"region": "CT",
"postal_code": "06103",
"country_code": "US",
"formatted": null
}
},
{
"role": "assignor",
"name": "Northstar Brands LLC",
"owner_id": "own_22222222-2222-4222-8222-222222222222",
"execution_date": "2024-09-30",
"date_acknowledged": "2024-10-01",
"legal_entity_text": "corporation",
"country_code": "US",
"address": null
}
],
"properties": [
{
"trademark_id": "tm_11111111-1111-4111-8111-111111111111",
"application_number": "98887777",
"registration_number": "6543210",
"ir_number": null,
"mark_text": "NORTHSTAR SUPPLY"
}
]
}
],
"has_more": false,
"pagination": {
"cursor": null
},
"request_id": "req_test_fixed"
}
Credits: 1 per page.
Each item carries the assignment summary fields plus
When To Use This
Use this endpoint when M&A counsel or diligence teams need the recorded chain of title for one mark before an acquisition. It shows assignments, security interests, releases, and other recorded conveyances for the mark, so unreleased liens can be spotted before closing. For the cross-mark diligence workflow, see Chain-of-title & Lien Diligence.Coverage. Assignments are USPTO only (
office_code=US), sourced from the USPTO assignment bulk feed and refreshed daily. The USPTO records assignments roughly 6 to 10 weeks after recorded_date, so the most recent two months are always incomplete.Path Parameters
string
required
Trademark ID (
tm_...).Query Parameters
string
Filter by conveyance type. One of
assignment, security_interest, release, merger, name_change, license, partial_assignment, correction, entity_conversion, other.string
Alias for
conveyance_type.integer
default:"20"
Page size (1-100).
string
Pagination cursor from a previous response.
Response
object[]
Assignment records for this trademark, sorted by
recorded_date descending.correspondent, parties, and properties. parties[] includes role, name, owner_id, execution_date, date_acknowledged, legal_entity_text, country_code, and address (a pass-through object of the office-provided party address fields, or null). properties[] includes the affected trademark_id, office serial and registration numbers, international registration number, and mark name.
Example Request
curl "https://api.signa.so/v1/trademarks/tm_11111111-1111-4111-8111-111111111111/assignments" \
-H "Authorization: Bearer $SIGNA_API_KEY"
Example Response
{
"object": "list",
"data": [
{
"id": "asg_77777777-7777-4777-8777-777777777777",
"object": "assignment",
"office_code": "US",
"reel_number": "9120",
"frame_number": "0301",
"conveyance_type": "release",
"conveyance_text": "RELEASE OF SECURITY INTEREST",
"recorded_date": "2025-04-18",
"last_update_date": "2025-04-22",
"page_count": 3,
"release_of_reel_number": "9102",
"release_of_frame_number": "0100",
"created_at": "2025-04-18T14:30:00.000Z",
"updated_at": "2025-04-22T18:45:00.000Z",
"correspondent": {
"name": "Loan Collateral Services",
"address1": "500 Delaware Avenue, Suite 720",
"address2": "Wilmington, DE 19801"
},
"parties": [
{
"role": "assignee",
"name": "Northstar Brands LLC",
"owner_id": "own_22222222-2222-4222-8222-222222222222",
"execution_date": "2025-04-10",
"date_acknowledged": null,
"legal_entity_text": "corporation",
"country_code": "US",
"address": {
"lines": ["88 Harbor Point Road"],
"city": "Stamford",
"region": "CT",
"postal_code": "06902",
"country_code": "US",
"formatted": null
}
},
{
"role": "assignor",
"name": "First Continental Bank, N.A.",
"owner_id": "own_44444444-4444-4444-8444-444444444444",
"execution_date": "2025-04-10",
"date_acknowledged": "2025-04-11",
"legal_entity_text": "corporation",
"country_code": "US",
"address": null
}
],
"properties": [
{
"trademark_id": "tm_11111111-1111-4111-8111-111111111111",
"application_number": "98887777",
"registration_number": "6543210",
"ir_number": null,
"mark_text": "NORTHSTAR SUPPLY"
}
]
},
{
"id": "asg_66666666-6666-4666-8666-666666666666",
"object": "assignment",
"office_code": "US",
"reel_number": "9102",
"frame_number": "0100",
"conveyance_type": "security_interest",
"conveyance_text": "SECURITY INTEREST",
"recorded_date": "2024-10-03",
"last_update_date": "2024-10-07",
"page_count": 4,
"release_of_reel_number": null,
"release_of_frame_number": null,
"created_at": "2024-10-03T14:30:00.000Z",
"updated_at": "2024-10-07T18:45:00.000Z",
"correspondent": {
"name": "Loan Collateral Services",
"address1": "500 Delaware Avenue, Suite 720",
"address2": "Wilmington, DE 19801"
},
"parties": [
{
"role": "assignee",
"name": "First Continental Bank, N.A.",
"owner_id": "own_44444444-4444-4444-8444-444444444444",
"execution_date": "2024-09-30",
"date_acknowledged": null,
"legal_entity_text": "corporation",
"country_code": "US",
"address": {
"lines": ["1 Financial Plaza"],
"city": "Hartford",
"region": "CT",
"postal_code": "06103",
"country_code": "US",
"formatted": null
}
},
{
"role": "assignor",
"name": "Northstar Brands LLC",
"owner_id": "own_22222222-2222-4222-8222-222222222222",
"execution_date": "2024-09-30",
"date_acknowledged": "2024-10-01",
"legal_entity_text": "corporation",
"country_code": "US",
"address": null
}
],
"properties": [
{
"trademark_id": "tm_11111111-1111-4111-8111-111111111111",
"application_number": "98887777",
"registration_number": "6543210",
"ir_number": null,
"mark_text": "NORTHSTAR SUPPLY"
}
]
}
],
"has_more": false,
"pagination": {
"cursor": null
},
"request_id": "req_test_fixed"
}
Code Examples
curl "https://api.signa.so/v1/trademarks/tm_11111111-1111-4111-8111-111111111111/assignments?type=security_interest" \
-H "Authorization: Bearer sig_YOUR_KEY_HERE"
import { Signa } from "@signa-so/sdk";
const signa = new Signa({ api_key: process.env.SIGNA_API_KEY });
const chain = await signa.trademarks.assignments(
"tm_11111111-1111-4111-8111-111111111111",
{ type: "security_interest" },
);
import requests
resp = requests.get(
"https://api.signa.so/v1/trademarks/tm_11111111-1111-4111-8111-111111111111/assignments",
headers={"Authorization": "Bearer sig_YOUR_KEY_HERE"},
params={"type": "security_interest"},
)
Related Endpoints
- Search Assignments: filter recorded transactions across marks
- Retrieve Assignment: retrieve parties and affected marks for one transaction
- Chain-of-title & Lien Diligence: owner and mark diligence workflow