Trademark 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",
      "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"
}

GET

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",
      "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

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 "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 "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

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

Trademark Source Trademark Documents

​When To Use This

​Path Parameters

​Query Parameters

​Response

​Example Request

​Example Response

​Code Examples

​Errors

​Related Endpoints

When To Use This

Path Parameters

Query Parameters

Response

Example Request

Example Response

Code Examples

Errors

Related Endpoints