Trademark Assignments

List recorded transfers, liens, and releases for one trademark

GET /v1/trademarks/{id}/assignments

cURL

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",
      "reel_no": "9120",
      "frame_no": "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_no": "9102",
      "release_of_frame_no": "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",
          "nationality": "US",
          "address": {
            "address1": "88 Harbor Point Road",
            "city": "Stamford",
            "state": "CT",
            "postcode": "06902"
          }
        },
        {
          "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",
          "nationality": "US",
          "address": null
        }
      ],
      "properties": [
        {
          "trademark_id": "tm_11111111-1111-4111-8111-111111111111",
          "serial_no": "98887777",
          "registration_no": "6543210",
          "intl_reg_no": null,
          "mark_name": "NORTHSTAR SUPPLY"
        }
      ]
    },
    {
      "id": "asg_66666666-6666-4666-8666-666666666666",
      "object": "assignment",
      "reel_no": "9102",
      "frame_no": "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_no": null,
      "release_of_frame_no": 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",
          "nationality": "US",
          "address": {
            "address1": "1 Financial Plaza",
            "city": "Hartford",
            "state": "CT",
            "postcode": "06103"
          }
        },
        {
          "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",
          "nationality": "US",
          "address": null
        }
      ],
      "properties": [
        {
          "trademark_id": "tm_11111111-1111-4111-8111-111111111111",
          "serial_no": "98887777",
          "registration_no": "6543210",
          "intl_reg_no": null,
          "mark_name": "NORTHSTAR SUPPLY"
        }
      ]
    }
  ],
  "has_more": false,
  "pagination": {
    "cursor": null
  },
  "request_id": "req_test_fixed"
}

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.

Path Parameters

id · string · required

Trademark ID (tm_...).

Query Parameters

conveyance_type · string

Filter by conveyance type. One of assignment, security_interest, release, merger, name_change, license, partial_assignment, correction, entity_conversion, other.

type · string

Alias for conveyance_type.

limit · integer · default: "20"

Page size (1-100).

cursor · string

Pagination cursor from a previous response.

Response

data · object[]

Assignment records for this trademark, sorted by recorded_date descending.

Each item carries the assignment summary fields plus correspondent, parties, and properties. parties[] includes role, name, owner_id, execution_date, date_acknowledged, legal_entity_text, nationality, 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

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",
      "reel_no": "9120",
      "frame_no": "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_no": "9102",
      "release_of_frame_no": "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",
          "nationality": "US",
          "address": {
            "address1": "88 Harbor Point Road",
            "city": "Stamford",
            "state": "CT",
            "postcode": "06902"
          }
        },
        {
          "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",
          "nationality": "US",
          "address": null
        }
      ],
      "properties": [
        {
          "trademark_id": "tm_11111111-1111-4111-8111-111111111111",
          "serial_no": "98887777",
          "registration_no": "6543210",
          "intl_reg_no": null,
          "mark_name": "NORTHSTAR SUPPLY"
        }
      ]
    },
    {
      "id": "asg_66666666-6666-4666-8666-666666666666",
      "object": "assignment",
      "reel_no": "9102",
      "frame_no": "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_no": null,
      "release_of_frame_no": 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",
          "nationality": "US",
          "address": {
            "address1": "1 Financial Plaza",
            "city": "Hartford",
            "state": "CT",
            "postcode": "06103"
          }
        },
        {
          "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",
          "nationality": "US",
          "address": null
        }
      ],
      "properties": [
        {
          "trademark_id": "tm_11111111-1111-4111-8111-111111111111",
          "serial_no": "98887777",
          "registration_no": "6543210",
          "intl_reg_no": null,
          "mark_name": "NORTHSTAR SUPPLY"
        }
      ]
    }
  ],
  "has_more": false,
  "pagination": {
    "cursor": null
  },
  "request_id": "req_test_fixed"
}

Code Examples

cURL

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"},
)

Errors

Status	Type	Description
400	validation_error	Invalid trademark ID or query parameter
401	unauthorized	Missing or invalid API key
403	forbidden	Missing trademarks:read scope
404	not_found	Trademark not found
429	rate_limited	Too many requests

Related Endpoints

• List Assignments: filter recorded transactions across marks
• Get Assignment: retrieve parties and affected marks for one transaction
• Chain-of-title & Lien Diligence: owner and mark diligence workflow